Maintain ground cover

Maintaining ground cover of at least 70% through appropriate pasture species and tactical grazing minimises rainfall loss through evaporation and surface run-off, and helps moderate deep drainage.

Monitor ground cover

 

20% ground cover

  • Run-off water loss = 160mm/year
  • Soil loss = 8.5mm/year
  • Poor plant production and sustainability
  • Low green leaf and plant vigour
  • Low water infiltration
  • Plants exposed to temperature extremes
  • Low litter levels
  • Low microbial activity
  • Poor organic matter content
  • Poor soil structure and surface sealing of soil
 20_GroundCoverweb.jpg
 

40% ground cover

  • Still too low
  • Run-off water loss = 90mm/year
  • Soil loss = 4.0mm/year
  • Poor pasture and soil loss
 40_GroundCoverweb.jpg
 

70% ground cover

  • Run-off water loss = 10mm/year
  • Soil loss = 0.3 mm/year
  • Good plant production and sustainability
  • High green leaf and plant vigour
  • High water infiltration
  • Plants’ bases protected from temperature extremes
  • High litter levels
  • Good microbial activity
  • High organic matter content
  • Good soil structure and soft soil surface
 70_GroundCoverweb.jpg
 

90% ground cover

  • 90% ground cover further reduces run-off, soil loss and evaporation losses
  • Paddocks with ground cover of 90% or more provide rotational grazing opportunities and rest for paddocks with poor ground cover
 90_GroundCoverweb.jpg

Manage surface run-off

Reducing surface run-off minimises the risk of erosion, however, some run-off is essential to fill farm dams and to provide stream-flows for downstream use and to maintain healthy rivers and aquatic ecosystems. 

Maintain ground cover of at least 70% with a high perennial component on low slopes, and up to 100% on steep areas, where erosion potential is higher. This will reduce the soil damage due to run-off, particularly under high-intensity storm rain, and improve water quality.

Fence off any wet areas and exclude stock from these sections when waterlogged. This protects the pasture roots from trampling damage and soil from compaction and pugging, both of which cause a long-term decline in pasture productivity, as well as contributing sediment and nutrients to run-off water.

Fence off and revegetate any gullies or sites where erosion is active.  In some cases, earthworks may be needed as part of a restoration process.

Avoid making permanent wheel tracks on slopes, down which water might flow and start the erosion process.

Install engineering options (such as interceptor drains, absorption banks, grassed waterways) in landscape situations where surface run-off and/or erosion are likely.

Manuals and guides
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