⚡ Soil Erosion In Australia

Monday, September 13, 2021 4:34:59 PM

Soil Erosion In Australia



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How will soil erosion change in NSW?

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Demand for carbon offets ramping up but it's far from a 'where do I sign' situation for producers. Therefore, when rainfall occurs, less water is absorbed into the soil and more washes downhill into rivers, lakes and wetlands. When extreme rainfall events occur, this can cause flooding in low-lying areas. Floods can damage houses and buildings, infrastructure such as roads and bridges, and agricultural crops and farmland.

When excess rainfall washes downhill, it carries with it particles of sediment. These are picked up by fast-flowing water on hillsides and is then deposited when the waters slow down in flatter areas. This deposition can damage plants and vegetation, both in agricultural and natural areas, and cause dams to "silt up" and become less effective. Sedimentation can require significant clean-up costs and effort when it occurs in urban areas.

Revegetation of areas that have been cleared is one of the most effective ways to prevent erosion. As well as intercepting and absorbing water, plants protect the soil surface and open channels in its structure, which increases water infiltration and storage. The best plants for this purpose are deep-rooted grass species, such as vetiver. Vetiver can be planted in rows across slopes to intercept and slow down water flow.

Another solution are earthworks such as ditches, canals and dams that intercept water flow. These can act as water reservoirs to store water, or direct water laterally across a slope rather than downslope. This reduction in water velocity greatly reduces its erosive potential. It is particularly useful in gullies, valleys and drainage channels. I studied Conservation Biology at Murdoch University before working as a government field researcher, project leader for community-led bushland regeneration programs, private botanical consultant and environmental educator. This report describes a method developed to set soil resource condition targets using total vegetation cover and satellite imagery to facilitate frequent national and regional reporting. In this section Soil degradation Acid sulfate soils.

Salinity expand Salinity. Type of salinity and their prevention. Salinity locations and mapping. Wind erosion collapse Wind erosion. Community DustWatch. DustWatch data explorer. Gully erosion. Fire and soils. Soil biodiversity. Soil carbon. Topics Land and soil Soil degradation Wind erosion

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