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LM3: impact of human interaction on soil degradation and regeneration,…
LM3: impact of human interaction on soil degradation and regeneration
Logging and small-scale removal of trees exposes soil to rain splash which loosens and dislodges soil particles, eroding soil and creating a more impermeable bare surface, which increases runoff. Above: An example of deforestation and erosion.
Start planting trees.
Stop printing and go paperless.
Recycle paper and cardboard.
When shopping, move towards buying recycled products mainly.
When at home, recycle as much as possible.
Erosion of exposed soils, extracted mineral ores, tailings, and fine material in waste rock piles can result in substantial sediment loading to surface waters and drainage ways. In addition, spills and leaks of hazardous materials and the deposition of contaminated windblown dust can lead to soil contamination.
Minimise vegetation disturbance.
Polymer based products.
Geotextiles
cover the land as if it was new
Tillage mixes oxygen into the soil and raises its average temperature, thereby contributing to an increased rate of organic matter decay. Loss of organic matter also occurs because erosion washes away topsoil and humus. Overall, cropping returns less organic matter to the soil than does native vegetation.
Wind breaks. Artificial and natural windbreaks, such as shrubs, reduce the erosion effects of wind.
Terracing. Terracing of slopes reduces the effects of water runoff and helps conserve rain water.
Strip farming.
Crop rotation.
Global population growth and in particular the growing global urban population also places additional pressure on land resources for food production. This leads to soil erosion and the loss of arable lands for housing.
Maintaining a healthy, perennial plant cover.
Mulching.
Planting a cover crop – such as winter rye in vegetable gardens.
Placing crushed stone, wood chips, and other similar materials in heavily used areas where vegetation is hard to establish and maintain.
deforestation
mining
agriculture practices