Farm Management Plan - Central Goldfields Shire Council
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Page 1 of 36 Farm Management Plan Lot 2 (50 Alma-Moonlight road, Alma) 2077 50 Alma-Moonlight Road, Alma April 2021
Page 2 of 36 Planning Report for Proposed Lot.2 (50 Alma-Moonlight road, Alma) Project: 2077 Report prepared by: Julie Lee of Natural Resource Pty Ltd link for the owners Natural Resource Link ACN 609 952 025 ABN 83 609 952025 54 Fraser Street, Clunes, Vic, 3370 Ph: 0406 459 522 Email: julie@nrlinks.com.au REV DETAILS DATE FINAL April 2021 Copyright Natural Resource Link Pty Ltd shall retain ownership of the reports and drawings, design, displays and other work produced by Natural Resource Link Pty Ltd during the course of fulfilling a commission until final payment by the client. Disclaimer Natural Resource Link Pty Ltd does not accept any liability for an error, omission or loss or other consequence that may arise from relying on this report. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 3 of 36 Contents INTRODUCTION ................................................................................................................................ 4 PURPOSE .......................................................................................................................................................4 CATEGORY AND CLASSIFICATION OF LAND ...........................................................................................................4 OVERLAYS ..................................................................................................................................................... 5 SITE .............................................................................................................................................................. 5 SOIL TYPE FOR AGRICULTURAL USE ................................................................................................. 6 AUSTRALIAN SOIL CLASS ..................................................................................................................................6 LAND SYSTEM ................................................................................................................................................ 7 LAND FORM ................................................................................................................................................... 7 TOPOGRAPHY............................................................................................................................................... 10 ECOLOGY AND RISKS ON SITE EXPLAINED ....................................................................................... 11 CREEKLINE HERB-RICH WOODLAND ................................................................................................................. 12 ALLUVIAL TERRACES HERB-RICH WOODLAND ................................................................................................... 13 GRASSY WOODLAND..................................................................................................................................... 14 EXPLAINING BENCHMARK ............................................................................................................................... 15 FARM MANAGEMENT .......................................................................................................................21 WEEDS ........................................................................................................................................................ 21 Environment Protection and Biodiversity Conservation Act ...................................................................... 21 Flora and Fauna Guarantee Act............................................................................................................... 21 Catchment and Land Protection Act. ....................................................................................................... 21 State Prohibited weeds ......................................................................................................................................22 Regionally controlled weeds ..............................................................................................................................22 Restricted Weeds ...............................................................................................................................................22 KEY POINTS FOR ALL LANDOWNERS AND LAND OCCUPIERS ABOUT NOXIOUS WEED AND PEST ANIMAL MANAGEMENT .... 22 Weeds of National Significance (WONS).................................................................................................. 24 Methodology .......................................................................................................................................... 25 Assessment Qualifications and Limitations ........................................................................................................ 25 Results. .................................................................................................................................................. 25 WEED CONTROL .............................................................................................................................. 26 WINDBREAKS ............................................................................................................................................... 28 INCREASE TOPSOIL ........................................................................................................................................ 28 IRRIGATION .................................................................................................................................................. 28 REGENERATION-EROSION CONTROL ................................................................................................................ 29 COMPOSTING ............................................................................................................................................... 29 INCREASING SOIL CARBON .............................................................................................................................. 30 OTHER RECOMMENDATIONS ........................................................................................................................... 30 APPENDIX.1. SITE PLAN ................................................................................................................... 31 APPENDIX.2. FARM MANAGEMENT PLAN......................................................................................... 32 APPENDIX.3 EVC 68 ........................................... ............................................................................. 33 APPENDIX.4 WEED LIST ...................................................................................................................34 APPENDIX.5 WINDBREAKS ............................................................................................................... 35 APPENDIX.6 DETAILED INFO ON UNDERSTANDING YOUR SOIL-NCCMA ......................................... 36 2077 50 Alma-Moonlight Road, Alma April 2021
Page 4 of 36 Introduction This report aims to deal with the need for a land management plan for this site, to advise current and future owners of their obligations to undertake reviews; and ensure that the site is maintained to ensure that pest and animals species are controlled on site. This is a requirement of conservation applications. Purpose This plan will demonstrate how the site can be maintained in perpetuity and how existing land management can be undertaken. Category and classification of land The site is zoned Farming Zone and is covered with remnant vegetation to almost 50% of the site. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 5 of 36 Overlays The overlay on site is LSIO -Land Subject to Inundation Erosion management overlay to a small part of the site Site The landscape is mostly open rural land with a mix of cropping/grazing, remnant vegetation and hobby farms. The landscape is flat and is serviced by sealed and all-weather roads and has a mixture of developed and undeveloped lots. The open landscape has a major watercourse ( Timor Creek) and many tributaries; with several small reserves. The Maryborough-St Arnaud is the main highway that 2077 50 Alma-Moonlight Road, Alma April 2021
Page 6 of 36 passes the site to the north-east and current access to site is from the Alma-Moonlight road (unsealed). The site is in the Goldfields Bioregion and contains a mix of EVC’s on this site. Soil Type for Agricultural Use Australian soil class The Australian soil class for this site is a Sodosol that cover 30% of Australia (A) Mottled Brown Sodosol These soils have yellow to brownish yellow coloured upper subsoil horizons that are usually mottled. The subsoils are usually coarsely structured, and prismatic and/or columnar peds are common. They are generally specific to mid-range rainfall areas (i.e. 500-800 mm) and commonly occur in the Uplands regions as well as in the western volcanic plains and southern plains of Victoria. These soils mainly support dryland sheep grazing and are common in a number of areas of Victoria where gold- mining has taken place (e.g. central goldfields region). Further information is provided on this soil, including a case for why it should be considered as the State Soil for Victoria 2077 50 Alma-Moonlight Road, Alma April 2021
Page 7 of 36 Soil profile image of soil on site (left) Land System The site is mapped to be 2.1PfQ5-7 which is a duplex soil with the following susceptibilities to land degradation: • Compaction High • Leaching Moderate • Mass Movement Nil • Salinisation Moderate • Water Erosion Nil • Water logging Nil • Wind Erosion Nil Land Form 2.1.7 Terraces and floodplains (Upper Loddon, Upper Woady Yallock Creek, Pomonal - Moyston area, Crowlands, Avoca, Newstead) 2. Western Uplands (WU) 2.1 Dissected Uplands 2077 50 Alma-Moonlight Road, Alma April 2021
Page 8 of 36 Alluvial flats are a common feature in most valley floors. In some valleys, the majority of the alluvium has been deposited in episodes of drainage disruption and blockages during the Late Neogene volcanism. Examples include the extensive alluvial flats of the Lal Lal Swamp and Dog Trap Creek. Some minor sandy deposits are associated with the Lal Lal swamp (lunette). Soil types present include dark self-mulching clays, texture contrast soils, some gradational soils and minor sandy soils. Alluvial systems within the Dissected Uplands of the Wimmera CMA region include Mount Cole Creek, Mount William Creek and the Wimmera River. Mount Cole Creek, the upper Wimmera River and other minor tributaries are supplied surface and groundwaters by Palaeozoic bedrock hilly terrain and Neogene cappings that line many lower hillslopes. As a tributary that supplies the Wimmera River, Mount William Creek rises on the slopes of Mt. William in the Grampians and flows slowly to the north-west through Dadswells Bridge. Extensive alluvial plains of this drainage system represent a low pass (geocol) that separates the Dissected Uplands (Midlands) to the east from the Grampians to the west. These fluviatile alluvia plains are characterised by its effluents and anabranches which leave the main channels (Sibley 1967). The tributaries are called subsequent streams where streams have evolved along areas of rock belt weakness leaving folded or titled strata of differing resistance as prominent strike ridges (Hills 1975). Drainage networks of Mount William Creek, Salt Creek, upper Wimmera River/Mount Cole Creek and Wattle Creek are aligned in a north north-westerly alignment with strike ridges on a regular spacing of 10-15 kilometres. Valley flats, terraces and flood out plains are common with Mount William Creek broadest in cross tributary dimension (often in excess of 5 kilometres) while others are typically less than 2 kilometres. Slopes are gentle to very gently inclined with terrace slopes of greatest inclination (up to 10%) found along Mount Cole Creek and upper 2077 50 Alma-Moonlight Road, Alma April 2021
Page 9 of 36 Wimmera River. The entrenched valleys of Quaternary sediments including the Shepparton Formation (a thick sequence of unconsolidated fluvial and lacustrine sediments – coarse sand, silt and clay) occur largely as terraces, plains and drainage lines. Sediments have been derived through differential weathering of granite masses that are surrounded by ridges and peaks of resistant metamorphosed sediments. The Coonambidgal Formation (reworked Shepparton Formation of slightly micaceous silty clay, sand and gravel) occur within drainage lines subject to flooding and inset streams (Butler 1958, Krokowski de Vickerod, Moore & Cayle 1997). Flood plains of Mount William Creek are lined by aeolian deposits (sands) sourced from the Grampians and lined by River Red gums on subdued slopes of this inset stream. The plains and terraces of the upper reaches of the Wimmera River system around Mount Cole Creek, Concongella and Elmhurst have been formed by the more rapid weathering of granitic rocks in the area, accompanied by the deposition of recent alluvial sediments. Incipient weathering profiles of older fluvial deposits have some mottling reflecting poor site drainage and clay alleviation processes. Granitic detritus of these valley systems has high concentrations of quartzose sand intermixed with silts that often compose terraces occupying elevated positions above the current drainage plain. Soils of the unit are deep grading into the generally unconsolidated regolith. These may range from texture contrast, generally sodic (Sodosols) to gradational earths and occasional clay (Vertosols, Dermosols) and sandy soils (Tenosols). Some soils may be waterlogged prone for at least 3 months of the year (Hydrosols). The texture contrast soils vary between the red non-sodic soils against the brown, yellow and grey sodic variants. All have sandy loam surfaces overlying a massive conspicuously bleached subsurface horizon. A clear change exists to light and medium clay subsoils where sodicity and colour are the distinguishing features. Importantly, the red texture contrast soils are commonly associated with terraces rather than current alluvial plains. Here most of the gradational yellow and brown soils (Kandosols) are found. Remnant vegetation communities are dominated by forests (Heathy Dry Forest and Grassy Forest) closest to intersection of the Wimmera River downstream of Greens Creek where stream gradients are low and anabranching is well defined. Woodlands including Damp Sands Herb-rich Woodland, Plains Grassy Woodland, Creekline Grassy Woodland, Riparian Woodland, Plains Woodland, Grassy Woodland occur along Mount William Creek with Lateritic Woodland, Sand Heathland, Sand Forest, Red Gum Wetland and Sedge Wetland found on floodplains and flats away from the current drainage depression. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 10 of 36 Heathy Dry Forest and Grassy Forest vegetation communities are associated with exposed areas of the alluvial plains of the Upper Wimmera River and Mount Cole Creek while Herb-rich Foothill Forest and Valley Grassy Forest are more associated with sheltered areas higher in the catchment. Various woodlands including Alluvial Terraces Herb-rich Woodland also occur across these valleys. Dry woodlands dominate drainage of Six Mile Creek/Seven Mile Creek and Salt Creek. The alluvial plains often compose later derived sediments that overlie gravels and sands of these valley deposits. Large volumes of groundwater are attributed to these alluvial systems through contributions of Grampians colluvium where rainfall is often twice that of the plains. Wetlands line Mount William Creek especially north of Jallukar to its integration with the Wimmera River. Lake Lonsdale and Lake Fyans represent large swamps that have now been dammed to form water supply dams for Stawell and Ararat. Further east, Greens Swamp (includes a main swamp and shallow ephemeral wetland) has been derived from a small catchment that has been unable to breach the levee of the Wimmera River (Hocking 2004). This swamp has a large clay lunette that predates major lake forming processes of the Murray Basin and reflects an intricate balance between climatic and groundwater conditions for lunette development. Topography The landscape has minor hills and plains with a large proportion of crown land (in grey above). The site is flat and has no real risk from erosion however waterways on site shows signs of erosion and this will require management. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 11 of 36 Ecology and risks on site explained Current mapping (Naturekit) shows the east end of the site that borders the waterway is mapped as EVC 68 Creekline Grassy Woodland that is Endangered in the Goldfields Bioregion. Endangered is defined as “Endangered Status code: E Contracted to less than 10% of former range; OR Less than 10% pre-European extent remains; OR Combination of depletion, degradation, current threats and rarity is comparable overall to the above: • 10 to 30% pre-European extent remains and severely degraded over a majority of this area; or • naturally restricted EVC reduced to 30% or less of former range and moderately degraded over a majority of this area; or • rare EVC cleared and/or moderately degraded over a majority of former area.”” 2077 50 Alma-Moonlight Road, Alma April 2021
Page 12 of 36 Creekline Herb-rich Woodland Intact example of a remnant patch of EVC 68 Creekline Herb-rich Woodland taken in Wedderburn in the Goldfields Bioregion. (source Vic Veg) Occurs to the north side of the site along the waterway and areas that become inundated by the waterway. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 13 of 36 Alluvial Terraces Herb-rich Woodland 2077 50 Alma-Moonlight Road, Alma April 2021
Page 14 of 36 Grassy Woodland 2077 50 Alma-Moonlight Road, Alma April 2021
Page 15 of 36 Explaining Benchmark Large trees typically should be 20 per ha or on this site 160 with a measurement around the trunk at breast height to be at least 70cm Canopy cover is at least 30% of Eucalyptus species The understorey is all plant life below the tree canopy and consists of many types of life forms see Appendix.10 for an explanation The benchmark explanation example Medium shrub 3 spp (means typically there should be 3 species in a quality site) 10% cover means Medium shrubs should have at least 10% cover over the site LF code is the Lifeform code- eg Ms=Medium Shrub This list is an example of common species found in this EVC a more comprehensive list in Appendix.11 A pictorial example of site coverage is in Appendix.12 and should be referred to by the land manager when monitoring the site. Shrubs are important factors for retaining birds 2077 50 Alma-Moonlight Road, Alma April 2021
Page 16 of 36 Bryophytes and Lichens is expected in benchmark site to be 10% cover Lichen on site Example of 10% cover Soil crusts in a benchmark site are to also be 10% (example below) 2077 50 Alma-Moonlight Road, Alma April 2021
Page 17 of 36 The offset site should have around 20% cover of organic litter (small bits of plant material such as leaves and small sticks); example of 20 cover below. Image of leaf litter on site Dead trees such as this black wattle will lose branches that will fall as logs and rot down into the soil. Larger dead trees may contain hollows that are important habitat for arboreal fauna and birds. It is important to note that a hollow bearing tree takes on average 80 years to grow so their removal is lost for a long period of time even if subsequent trees are replanted. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 18 of 36 Next is a what should be expected from recruitment, organic litter and logs are to be expected to be monitored for on site. Sample pic (above from another site) shows how fallen branches mitigates erosion and eventually rots down to return nutrients that is essential in soils like this of low fertility. This picture is a sample picture of small logs on site. It is imperative that on this site you should find around 1.6km of logs as this equates to 20m/0.1ha or 1600m per 8 ha(this site) Large logs are critically important not only to denitrification (to break down) but to supply habitat. It is preferred if large logs make at least 30% of the log component. Typical large log shown here 2077 50 Alma-Moonlight Road, Alma April 2021
Page 19 of 36 This is the last component of the EVC Benchmark and it lists typical weed species Horehound (Marrumbium vulgare) has been seen on site. Wild Rose was evident on site Aira elegantissima was not seen on site possibly too dry at the time of the survey. A comprehensive list of weeds in the area including noxious and those under the Catchment Protection Act that are the responsibility of the landowner to monitor for are listed in the weed section. 2077 50 Alma-Moonlight Road, Alma April 2021
Page 20 of 36 African Boxthorn was evident on site Phalaris aquatica was evident on site 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 21 of 36 Farm Management Weeds Environment Protection and Biodiversity Conservation Act There are currently no weeds listed on the EPBC Act. The EPBC Act deals with actions that have or are likely to have a significant impact on a matter of national environmental significance. Flora and Fauna Guarantee Act This state legislation lists taxa and communities of flora and fauna that are threatened and threatening processes. The listed potential threatening processes under the FFG and relevant to the site are: • Invasion of native vegetation by Blackberry Rubus fruiticosa • Invasion of native vegetation by ‘environmental weeds’ • Land clearance for agricultural use • Predation by European red fox • Predation by feral cats • Loss of biodiversity/shade/windbreak/moisture retention Catchment and Land Protection Act. The catchment and Land Protection Act is the main legislation tool in Victoria and is administered by DELWP. Noxious weeds have the potential to threat primary production and to biodiversity. It is the responsibility of the land holder to monitor and control the spread of noxious weeds.The CaLP Act lists certain weeds as noxious and there are 4 categories: • State Prohibited (S) • Regionally Prohibited (P) • Regionally Controlled ( C) • Restricted (R) There are weeds listed in the area that fall under the CaLP Act such as: • Rosa ruginosa ( C) • Lycium ferocissimum ( C) 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 22 of 36 • Marrubium vulgare ( C) • Phalaris aquatica State Prohibited weeds These invasive plants either do not occur in Victoria but pose a significant threat if they invade, or are present, pose a serious threat and can reasonably be expected to be eradicated. If present, infestations of a State prohibited weed are relatively small. They are to be eradicated from Victoria if possible or excluded from the State. The Victorian Government is responsible for their eradication, but under Section 70(1) of the CaLP Act, it may direct land owners to prevent their growth and spread. Regionally controlled weeds These invasive plants are usually widespread in a region. To prevent their spread, ongoing control measures are required. Land owners have the responsibility to take all reasonable steps to prevent the growth and spread of Regionally controlled weeds on their land. Restricted Weeds This category includes plants that pose an unacceptable risk of spreading in this State and are a serious threat to another State or Territory of Australia. Trade in these weeds and their propagules, either as plants, seeds or contaminants in other materials is prohibited. (Department of Agriculture- Victoria 8 May 2017) Key points for all landowners and land occupiers about noxious weed and pest animal management Under s 20 of the CaLP Act, all landowners, including the Crown, public authorities and licensees of Crown lands, must, in relation to their land, take all reasonable steps to: • avoid causing or contributing to land degradation which causes or may cause damage to land of another landowner. • eradicate regionally prohibited weeds; • prevent the growth and spread of regionally controlled weeds on their land; • prevent the spread of, and as far as possible, eradicate established pest animals. In the case of non-compliance with s 20 of the CaLP Act, the government may serve a Directions Notice and/or Land Management Notice on a land owner outlining measures that must be taken for the control or eradication of noxious species on their land. Not complying with the conditions of a Directions Notice or Land Management Notice is an offence and penalties may apply. 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 23 of 36 The CaLP Act also contains provisions to prevent the spread of declared noxious weeds, through regulating the purchase, sale, possession for the purposes of sale, display, propagation or transport of these species into or within Victoria. Under the CaLP Act it is furthermore prohibited to bring into Victoria, keep, sell or release declared pest animals without an authority (permit). In summary, it is an offence to: • sell or trade any restricted weeds; • remove or sell soil, sand, stone, gravel, fodder or grain likely to contain any part of a noxious weed without a permit. A person who contravenes any of these prohibitions may be directed to remove the noxious weed from any infested goods (animal, plants, vehicle, soil, sand, gravel and stone) or destroy them or restrict the movement if it is likely to spread weeds; • buy, sell, possess for sale, bring into the State or transport within the State without a permit noxious weeds, seeds of noxious weeds or any part of a noxious weed capable of growing; • sell or offer for hire, without a permit from DEDJTR, any machinery that is for primary production that contains seeds of noxious weeds or other parts of noxious weeds that are capable of growing; • sell an animal that is carrying the seeds of a noxious weed without a permit from DEDJTR, unless it is a farm animal being sold directly to a meat processing facility within the meaning of the Meat Industry Act 1993; • deposit on land, without a permit from DEDJTR, a noxious weed or a part of a noxious weed that is capable of germinating; • import, keep, sell or release any pest animal in Victoria without a valid permit. • fail to comply with a Directions Notice • fail to comply with a Land Management Notice Penalties for offences under the CaLP Act Land owners should be aware that the maximum penalty for a single offence involving responsibilities for the management of noxious weeds is approximately $38,000 in 2017/18. For a single offence of importing, keeping, releasing or selling a prohibited pest animal, the maximum penalty is approximately $76,000 in 2017/18. Catchment and Land Protection Regulations 2012 There are also regulations under the CaLP Act which further guide the management of invasive pests. The CaLP Regulations 2012 specify the four control measures that can be included in a 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 24 of 36 Directions Notice for each species of declared noxious weed. The four measures are: application of herbicide; cultivation of the soil; physical removal; and mulching. The regulations also stipulate how many rabbits a person may keep without a permit. The CaLP Regulations 2012 also specify the two prescribed measures for the eradication or control of European Rabbits being ripping and sealing all entrances to the warren. (Department of Agriculture-Victoria 19 January 2018) Weeds of National Significance (WONS) Thirty two Weeds of National Significance (WoNS) have been agreed by Australian governments based on an assessment process that prioritised these weeds based on their invasiveness, potential for spread and environmental, social and economic impacts. Consideration was also given to their ability to be successfully managed. A list of 20 WoNS was endorsed in 1999 and a further 12 were added in 2012. Landowners and land managers at all levels are responsible for managing WoNS. State and territory governments are responsible for legislation, regulation and administration of weeds. (Australian Government nd) The following weeds are mapped to be in the vicinity of the site and are listed on WoNS: • Rosa ruginosa • Lycium ferocissimum • Marrubium vulgare • Phalaris aquatica 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 25 of 36 Methodology A weed survey was undertaken throughout the study area 2 March 2021 to identify the weed species present, distribution, cover and abundance. The study area was traversed by foot and the location of the weed infestation in the study area was recorded with its relevant coordinates and then translated onto a site map. Special attention was given to the low lying and drainage lines on site. A survey of recorded weeds in the area was undertaken by using the Atlas of Living Australia (Atlas of Living Australia nd) to a radius of 5km from the site. The weed coverage was assessed as a percentage of weed cover, using the weed density shown here (Source: New South Wales Agriculture, 2004) Assessment Qualifications and Limitations The survey was undertaken in late summer which is not an optimal time for floral surveys. Therefore the historical listing of weeds in the area will be used as well as those weeds identified on site. The site assessment was completed by Julie Lee from Nrlinks that has a diploma in Conservation and Land Management. Results. Weed species recorded on site • Rosa ruginosa • Lycium ferocissimum • Marrubium vulgare • Phalaris aquatica 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 26 of 36 Weed Control The control of weed species is a key management action within the site and is critical to achieving good ground coverage. Effective weed control should promote the regeneration of existing populations of indigenous species and encourage recruitment from soil stored seed. Care should therefore be taken to ensure this ultimate objective is not compromised by excessive treatment. Weed control work should be carried out by a suitably qualified contractor. Whilst all weeds should be treated, emphasis is placed on priority weeds within the offset site. Priority weeds include woody weeds, all noxious weeds listed under the Catchment and Land Protection Act 1994 (CaLP) and high threat perennial grasses. High priority weeds that require immediate attention are: • Rosa ruginosa • Lycium ferocissimum • Marrubium vulgare The following key management actions will be undertaken to ensure success of the weed management program: • Eliminate priority weeds (cover reduced to
Page 27 of 36 • Selective herbicide application is preferable to broad area application but clearly the loss of non-target species needs to be balanced with the threat of incomplete control of the existing weed population; • Strategic crash-grazing of paddocks dominated by Brown-top Bent-grass may be considered during appropriate seasons to enable other species including native perennial grasses to increase in cover; • Any weed control should be done in a manner that minimises soil disturbance; • Where herbicide application is employed, waterway sensitive products and non-residual herbicides are to be employed; • Pest plants that reproduce sexually (by seed) are best controlled before seed set. If herbicide application is proposed after seed set, slashing should be undertaken to ensure seed does not reach maturity; • To reduce the amounts of herbicide used, the target biomass should be reduced (e.g. slashed) before application so the herbicide can also be absorbed by the actively regrowing plants. Herbicides are only effective when plants are actively growing; and, • Weed control works should be monitored regularly to assess their effectiveness, perform follow up works and evaluate the feasibility of management objectives. Key Performance Indicators The following key performance indicators have been provided to measure the success of the weed management program: • Reduce priority noxious weed cover to
Page 28 of 36 Windbreaks Windbreaks to the west and north are recommended on site to reduce the drying effects of winds to the crops. The soils have low nutrient and water holding capacity so these windbreaks once established will reducing the drying effects of winds. It is suggested that native species from the list in the appendix are used with a density of trees to be 1 per every 10m (linear) with 4-5 shrubs in 2 rows as shown here. Increase topsoil Areas on site have been filled in from previous mining and have a large amount of rock to the surface. These areas are devoid of topsoil and this will need to be added to supply a suitable topsoil for root growth. You will need to allow for the addition of at least 10cm of toil soil. Irrigation 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 29 of 36 There are two paddocks currently being irrigated and this has enabled a higher capacity of crops; although salinity is an issue and irrigation can raise the water table on these areas and increase salinity in the topsoil. It is recommended that the owner undertake soil testing for salinity levels then create a bund around each irrigated paddock to control run off. These areas are best planted with Eucalyptus camaldulensis (River Red Gum) that is suited to periods of inundation/water logging and is salt tolerant. The addition of the trees at a 10m spacing will ensure that any water run off is used by the trees and does not enter the water table below. It is recommended that these bunds be created around each irrigated paddock to a similar format as shown here. Regeneration-Erosion control The area to the north where vegetation has been modified by grazing there is a lack of recruitment and erosion evident along the stream to mitigate this the area will be fenced off. Grazing will be allowed to reduce biomass (dead grass) prior to summer usually 2- 3 sheep over 4-5 days is sufficient for this. All recruiting trees within this area will need to be protected against predation by a simple wire frame. The area has kangaroos, and the trees can be lost from this predation. It is not suggested that the area be planted out, but that natural recruitment occur over time. Weed management will need to be undertaken in this area to ensure that weed growth does not suppress growth. Composting The soils have low fertility and will benefit greatly from the addition of composting. Leaf little green plant material can be stock piled on site on a suitably prepared flat area. The site is noted as an example only on the farm management plan but should be located at least 100m from any waterway. For any assistance you can call the North Central Catchment Management Authority they run field days on composting and sustainable farming that will assist in the long-term management of your soils, increase carbon and provide you with more resilience against climate change. There are many ways to find out about sustainable farming: NCCMA website http://www.nccma.vic.gov.au/ 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 30 of 36 Join the sustainable farming page and meet up with other farmers to learn techniques – Central Victorian Regenerative Farmers https://www.facebook.com/groups/291403711731532 Join Landcare landcare@nccma.vic.gov.au View previous newsletter on the NCCMA website http://www.nccma.vic.gov.au/landcare#node-27 Increasing soil carbon Your soil carbon is currently higher than the surrounding large farming properties due to the trees around the perimeter and is 0-5cm 1.8 and decreases with depth with 5-15cm at 1.6 based on 20% clay in the top soil the carbon can be increased to 2.1 Soils such as what you have on your site; will be improved with the increase of carbon. This can be increased by the following: • Stock control to maintain ground cover to 70% at all times • No tillage of the soils • Perennial plants included to the mix of crop species • No burning off of stubble • Increase tree planting • Natural fertilisers • Control traffic • Compost teas Application of gypsum to replace exchangeable sodium with calcium with organic matter. Other recommendations In addition to this stubble should be returned to the soil each year instead of burnt to increase soil carbon. This needs to be worked back into the soil; an application of gypsum and nitrogen are required at the same time to improve drainage and provide nutrient for the organic matter to break down. Composted material can be used in replacement of nitrogen if available. It is imperative to also manage the following: • Crop cover should aim at least 70% cover at all time. • Control of rabbits on site as they break to the topsoil and the subsoil is dispersive and will erode away. • Continue to use defined tracks on site for vehicle access. • Rotate crops and allow sites to be fallow. • Increase diversity in crops and move away from monocrops (just using one species cropped into the paddock) 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 31 of 36 Appendix.1. Site Plan 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
LEGEND MA R YBO ER R OU TH GH - STA EA LOT.1 9.9 ha R NA W UD L R OA EXISTING EXISTING TURNED OVER D DWELLING AREA-MINING SHAFTS AL TREE COVER 411 AD KER S RO W AL LOT.2 42.77 ha POOR DAM EXISTING L Y DRAINAGE DRIVEWAY N ON IO M AT K ND C NU AR I RA Y OF T NE LI BO R O 2 10 U GH- LOT.1 9.9 ha CONTOUR EXISTING EXISTING S RO AG SHEDS EROSION TA LOT.2 42.77 ha AD RN A RE S UD ER RO A T ION VE D N DA U O F IN L IN E ADE ER 274 L L W EA TH A NOTE: RISKS TO SOIL HEALTH ON SITE ARE DISPERSIVE LAID 55 SOILS TO THE NORTH, HIGH COMPACTION RISK, MODERATE LEACHING AND SALINITY E LE HA A D- 210 268 RK AL I 34 M N A R C RO O OU AD AD R R T 251 E 35 SE AD 33 R R O VE HT 36 ALMA LI G CEMETRY O N 32 MO MA- A L 37 164 38 EROSION ON MINOR WATERWAY ON THE NORTH OF THE SITE EXISTING PLAN SCALE 1:5000 @A3 PROJECT: PROJECT DWG TITLE: DRAWINGS FOR NATURAL Note: EXISTING PLAN 50 Alma-Moonlight NO: 2077 RESOURCE The contractor shall verify all dimensions and all underground DO NOT SCALE Rd, Alma West East PLANNING PERMIT ONLY services at the site before commencing work. The contractor shall LINK PTY LTD DATE: NOT TO BE USED FOR 54 Frazer Street NORTH verify all levels from the consulting engineer prior to construction. FROM DRAWINGS APR 2021 SCALE: 1:5000 @A3 South CONSTRUCTION Clunes 3370 julie@nrlinks.com.au C Design Copyright to Natural Resource Link Pty Ltd . This drawing is copyright and the property of the designer and must not be retained, used or copied for any other project without the designer's written authority. Do not scale off drawings. Confirm all dimensions on site prior to setting out.
Page 32 of 36 Appendix.2. Farm Management Plan 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
LEGEND MAR YBO ER RO U TH G H- STA EA RNA U W DR L OAD PROPOSED PROPOSED PROPOSED EXISTING grazing/fodde r INCREASE AL 411 DWELLING WINDBREAK FENCE FENCE TOPSOIL (FENCED) pasture R O AD E RS W A LK grazing* PROPOSED EXISTING DRAINAGE 1 WEEK Y COMPOST ADD SALINE ANNUAL NL GRAZE N O AREA TOLERANT TREES IO RESTORE AT K grazing* D irrigated UN AC VEGETATION IN pasture grazing OF TR NE LI irrigated NOTE: RISKS TO SOIL HEALTH ON SITE ARE DISPERSIVE SOILS TO THE NORTH, HIGH COMPACTION RISK, pasture MODERATE LEACHING AND SALINITY grazing/fodder pasture.2 MITIGATE SOIL RISK BY CHANNELLING RUN OFF AROUND IRRIGATED PADDOCKS AND PLANTING HIGH SALINE TOLERANT TREES TO USE WATER THIS WILL AVOID INCREASE IN SALINE WATER TABLE. ERSOSION RISK -LIMIT GRAZING TO BIOMASS CONTROL, ALLOW FOR N NATURAL REGENERATION- REDUCES FRAGMENTATION ATIO ALL PASTURES TO BE IMPROVED WITH GYPSUM OR SIMILAR TO IMPROVE UND grazing/fodder DRAINAGE. pasture.4 USE SPECIFIED ROADS ONLY TO ALL PADDOCKS TO LIMIT TRAFFIC O F IN MOVEMENT. L IN E SALINITY MODERATE IRRIGATION, CONTROL RUN OFF AND USE OF domestic ER EXCESSIVE RUN OFF BY SALINE TOLERANT TREES. grazing/fodder L L W E A TH SOIL HAS MODERATE LEACHING SO INCREASE CARBON IN SOIL AND A INCREASE NUTRIENTS. pasture.1 grazing/fodder 55 INCREASE SOIL DEPTH WITH COMPOSTING TO IMPROVE SOIL CONDITION AND CARBON. pasture.3 HA R ha KI .3 34 N 42 R .2 C OT OA O L U DR RT E S 35 33 ER OAD R VE HT 36 G LI OON 32 M M A- AL 37 164 EROSION ON MINOR WATERWAY ON THE NORTH OF THE SITE EXISTING PLAN SCALE 1:5000 @A3 PROJECT: PROJECT DWG TITLE: DRAWINGS FOR NATURAL Note: FARM 50 Alma-Moonlight NO: 2077 RESOURCE The contractor shall verify all dimensions and all underground DO NOT SCALE Rd, Alma MANAGEMENT West East PLANNING PERMIT ONLY services at the site before commencing work. The contractor shall LINK PTY LTD DATE: PLAN NOT TO BE USED FOR 54 Frazer Street NORTH verify all levels from the consulting engineer prior to construction. FROM DRAWINGS APR 2021 SCALE: 1:5000 @A3 South CONSTRUCTION Clunes 3370 julie@nrlinks.com.au C Design Copyright to Natural Resource Link Pty Ltd . This drawing is copyright and the property of the designer and must not be retained, used or copied for any other project without the designer's written authority. Do not scale off drawings. Confirm all dimensions on site prior to setting out.
Page 33 of 36 Appendix.3 EVC 68 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 34 of 36 Appendix.4 Weed List 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 35 of 36 Appendix.5 Windbreaks Trees: Eucalyptus viminalis Manna Gum Eucalyptus leucoxylon Yellow Gum Eucalyptus camaldulensis River Red Gum Eucalyptus macrocarpa Grey Box Shrubs: Acacia pycnantha Dodonaea viscosa Bursaria spinosa Callistemon sieberi Melaleuca parvistaminea Acacia paradoxa Allocasuarina verticillata Acacia howittii Callistemon citrinus (variety) Grevillea rosmarinifolia ( small needle forms) Kunzea baxteri 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
Page 36 of 36 Appendix.6 Detailed info on understanding your soil-NCCMA 2077 Lot 2 Alma-Moonlight Rd Alma Apr 2021
North Central Victoria I
Acknowledgment of Country The North Central Catchment Management Authority (CMA) acknowledges Aboriginal Traditional Owners within the catchment area, their rich culture and their spiritual connection to Country. We also recognise and acknowledge the contribution and interests of Aboriginal people and organisations in the management of land and natural resources. Acknowledgments The North Central CMA wishes to acknowledge Ashley Rogers and Mandy Coulson, for their efforts in the compilation of this Soil Health Guide and Score Card. The North Central CMA wishes to acknowledge Melissa Cann, Belinda Pritchard and Rebecca Mitchell, Agriculture Victoria, DEDJTR for their support in reviewing the guide, providing valuable input and for the use of their photographs and reference material. The North Central CMA also wishes to acknowledge Graham Shepherd (BioAgriNomics) and Lyn Kelson (The Green Cocky) for their knowledge and expertise, and NSW Agriculture and Agriculture Victoria for the use of their photographs and reference material. More information For additional copies of the Soil Health Guide or for further information please contact: North Central CMA 628-634 Midland Highway PO Box 18, Huntly VIC 3551 T: (03) 5448 7124 F: (03) 5448 7148 E: info@nccma.vic.gov.au www.nccma.vic.gov.au The North Central Soil Health Guide and Score Card is an initiative of the North Central CMA’s Regional Landcare Facilitator project through funding from the Australian Government’s National Landcare Programme. Disclaimer This publication may be of assistance to you but the North Central Catchment Management Authority and its employees do not guarantee that the publication is without flaw of any kind or is wholly appropriate to your particular purposes and therefore disclaims all liability for any error, loss or other consequence which may arise from you relying on any information in this publication. 2nd Edition, 2016 © North Central Catchment Management Authority, 2016
CONTENTS Introduction 2 Aim 2 North Central CMA Region 3 How to use the Soil Health Guide 4 Equipment 6 Digging the hole 8 Sampling Procedure 9 Test 1 Groundcover 10 Test 2 Evidence of Soil Biological Activity 12 Test 3 Soil Colour 14 Test 4 Soil pH 18 Test 5 Texture 20 Test 6 Top Soil 22 Test 7 Soil structure 24 Test 8 Soil compaction layers 26 Test 9 Slaking & Dispersion 28 Soil health score card 30 References 32 1
INTRODUCTION Healthy soils are fundamental to rural living and food production. Australian soils are among some of the oldest and most weathered in the world. They generally contain low levels of organic matter and if not carefully managed can erode and degrade easily under traditional European farming practices. Maintaining healthy soils is essential for farmers and land managers in north central Victoria to support productive agricultural industries, contribute to food security and deliver soil related ecosystem services (e.g. clean water and air). A healthy soil is defined as a state of a soil meeting its range of ecosystem functions as appropriate to the environment. Healthy soils are essential for healthy plant growth, human nutrition, drinking water filtration and a landscape that is more resilient to the impacts of drought or flood (Soils For Life, 2015). For farmers or rural property owners soil is their most valuable asset. It provides structural support, water and nutrients for plant growth. Understanding soil types, applying the appropriate management practices and monitoring soil quality are all important steps in protecting and enhancing soil health. AIM This Soil Health Guide for north central Victoria is a easy- to-read, practical guide to understanding soil types in north central Victoria. The guide provides information to help identify possible soil health issues using nine simple visual tests conducted in the paddock. The tests are cheap and easy, and can be undertaken using home-made equipment such as wire quadrants. Observations and results can be used to determine management actions to improve soil health and assess differences in soil health between paddocks, farms, management practices and/or growing seasons. Together with the Soil Health Score Card (see inside back cover), the guide aims to complement laboratory test results, providing real-time information on a soils physical, chemical and biological characteristics. 2
NORTH CENTRAL CMA REGION SWAN HILL River Murray KERANG COHUNA QUAMBATOOK PYRAMID HILL ECHUCA Avoca River Loddon River ROCHESTER DONALD Richardson ELMORE River BRIDGEWATER ST ARNAUD Campaspe River MARNOO Avon River BENDIGO BEALIBA CASTLEMAINE MARYBOROUGH AVOCA KYNETON DAYLESFORD 3
HOW TO USE THE SOIL HEALTH GUIDE 1. Read all the information first Before heading out into the paddock it is important to read all the information and organise the equipment. 2. When to test The Soil Health Guide contains a series of tests which should be carried out at least once a year during the main growing season (e.g. late winter or early spring). Avoid taking samples during very dry or wet conditions, extreme heat or cold temperatures and after fertiliser or lime applications (wait at least three to four weeks after applications before testing). To compare results between years or across paddocks, carry out the tests at similar times of year, under similar conditions and in the same location(s). 3. Prepare your equipment Prior to testing collect and/or make the equipment (refer to equipment list). TIP: Set up Test 9 first, as this will take 30 minutes and can be assessed at the end. 4. Select test sites Firstly, select the paddock(s) for assessment – it could be the farm’s best and worst soils, or paddocks under different management. For example, perennial versus annual pastures, or rotational versus continuous grazing. It is important to select a test site that is representative of the paddock. Try to avoid stock camps, headlands, watering points or any other sites of unusual traffic. Refer to sampling procedure. (Adapted from the Soil Structure Assessment Kit – Shelley McGuinness, Centre for Land Protection Research, 1991). 5. Decide how many cards you need The score card has provisions to record three results for each of the nine tests. More cards will be required for additional testing. TIP: Conduct tests in undisturbed areas of the paddock and along the fence line to compare results. 4
6. Carry out the tests The Soil Health Guide lists 9 tests. The Soil Health Score Card offers space to record paddock information (e.g. rainfall, pasture type, site location/map, grazing frequency and so on) and up to three sets of test results. The more tests conducted within a site/paddock, the better the understanding of soil health, as results will be more representative. Once confident with the tests, it will take approximately 30 minutes to carry out all 9 tests. TIP: Record the date on the score card before filing to compare results over-time. 7. Review the test procedure Review the selected sites to ensure results are indicative of the area tested. TIP: It’s also important to regularly review testing procedures to make sure procedures are consistent between sites over-time. 8. Review the results and follow up on low scores Line up the test sheets for the areas/paddocks or compare and identify any differences or similarities across the 9 tests. TIP: If neighbours or members of the local Landcare or farming group are also carrying out the tests, get together as a group to compare results and discuss possible causes and management options. 9. Make a note to repeat the tests after one year. By carrying out the tests regularly throughout the season and across multiple years, it will help identify soil health conditions and the implications of different management practices on soil health. Note: To complement this guide, ongoing soil extension support is recommended. 5
EQUIPMENT A plastic tub is recommended to hold equipment • Shovel • Large garbage bag or tarp • Tape measure • Home-made penetrometer • GPS or farm map. • Soil pH kit (available from gardening supply stores) • Home-made wire quadrant • 1 litre bottle of rain or distilled • Hand magnifying lens water • 0.5 Litre water bottle • Shallow dish or transparent cup. • Large plastic tub Home-made equipment A quadrant is used to show a known area when placed on the ground. Wire quadrant Make a 30 cm x 30 cm quadrant (square) out of sturdy cardboard or wire. Alternatively a wire coat hanger can be used, which measures 24 cm by 24 cm when opened out to form a square. Penetrometer A penetrometer is a device to test compaction in the soil. The depth to which the average person can push the penetrometer into the soil is usually a good indication of compaction (Shelley, 1991). A scientific penetrometer with a gauge can be purchased or a home-made one can be constructed using a piece of wire or steel. Figure 1: Home-made wire quadrant, steel-rod penetrometer and wire penetrometer 6
Option 1 - For the wire method, take a 500mm length of 3.15mm/10 gauge high tensile wire. Curve 120mm of the length into a handle, the remaining length forms the penetrometer. Home-made equipment: Care needs to be taken. Before undertaking rigorous testing, please ensure equipment is check by a local soil specialist. Option 2 - Alternatively a home-made penetrometer can be simply constructed using two pieces of steel rod. Weld a 1100mm length of 10mm steel rod at right angles to a 400mm length of 20mm steel rod. The tip of the shaft can then be sharpened into a point. If a hollow piece of rod is used, a hardened tip will need to be welded to the end. Modest effort is required when using a penetrometer. If you hit a rock or tree root, choose another spot. The easier it is to penetrate the soil, the better the deep root development and water infiltration. Using a penetrometer in the field to test compaction. Photo: North Central CMA 7
DIGGING THE HOLE TIP: Dig a hole large enough to have a clear view of one face (Shelley, 1991) Equipment: Shovel, tape measure and GPS or map to record the location of the hole(s). Instructions: Locate the site for the hole(s). If a farm is made up of different soil types consider completing the tests for each soil type. Record the GPS location or mark on a map the location of where the tests were completed so tests can be undertaken at the same location again in the future. (Victorian State Government, 2001) Dig a hole 50-60 cm deep (or until rock is hit) by 50-60 cm wide. A hole of this measurement allows visibility of soil that is most important to plant roots. Try and remove the first 20 cm of soil as a solid cube in preparation for the soil structure test. (Victorian State Government, 2001) Photo: Poprotskiy Alexey, Shutterstock.com 8
SAMPLING PROCEDURE Taken from: http://www.depi.vic.gov.au/agriculture-and-food/farm-management/ soil-and-water/erosion/groundcovering-measuring-tool When monitoring it is important to make sure that the areas being assessed are representative of the entire area. If a soil sample is a different colour from the other sample it should be discarded. The best way to achieve this is to walk along an imaginary transect line, diagonally across the paddock from post to post, Figure 2 or take 10 steps in one direction then randomly turn and take 10 steps in the other direction, Figure 3. Points. (Victorian State Government, 2001) The larger the area the more tests are required. Take a quick walk over the general area to understand how variable the paddock is and how many tests should be undertaken. (Victorian State Government, 2001) Draw a transect roughly on the Soil Health Card and note approximately where the tests were undertaken, remember to mark on the drawing where north or the top of the paddock is as a reference point. TIP: If available, consider (not necessary) using a GPS (Global Positioning System) to record test site Figure 2: Transect Figure 3: Zig zag - random Assessment points 9
TEST 1 GROUNDCOVER BIOLOGICAL Why do we need to know about groundcover? • Groundcover includes both living and dead plant material and litter. • By understanding and managing groundcover, soils become less susceptible to degradation caused by erosion from wind and water. • A healthy soil contains a broad diversity of microbial types and plants depend on these beneficial soil organisms to help them obtain nutrients and water from the soil (Victorian Government of Primary Industries, 2005). • It is beneficial to measure groundcover each year, not only when pasture growth is low. Equipment: Wire quadrant. Test (the best time to assess is prior to the autumn break): Randomly place the wire quadrant using the sampling patterns on page 9. Estimate the proportion of groundcover inside each quadrant (includes both living and dead plant material and litter). (Victorian Government of Primary Industries, 2005) Interpretation of results: Estimating groundcover levels in pasture 20% Groundcover 40% Groundcover 50% Groundcover 10
80% Groundcover 90% Groundcover 100% Groundcover Table 1: Estimating groundcover levels in a cropping situation Standing Rolled Chained Cultivated Coverage Stubble Stubble Stubble Stubble 20% 50% 80% Pasture photos: Greg Lodge, NSW DPI – 20% and 40% cover photographs. Primary Industries South Australia, 1996, Pasture Pics: easy estimation of pasture dry matter levels, Appila / Bundaleer Pasture Group, Appila, SA - 50, 80 and 100% photographs; Cropping photos: Mallee Sustainable Farming Inc., 2013, Improving Soil Health and Reducing Wind Erosion project of the Murray Catchment Management Authority. 11
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