Search results
Results from the WOW.Com Content Network
[34] [35] There is growing evidence that tillage erosion is a major soil erosion process in agricultural lands, surpassing water and wind erosion in many fields all around the world, especially on sloping and hilly lands [36] [37] [38] A signature spatial pattern of soil erosion shown in many water erosion handbooks and pamphlets, the eroded ...
While erosion is a natural process, human activities have increased by 10–40 times the rate at which soil erosion is occurring globally. [7] At agriculture sites in the Appalachian Mountains, intensive farming practices have caused erosion at up to 100 times the natural rate of erosion in the region. [8]
The means-based evaluation looks at farmers' practices of agriculture, and the effect-based evaluation considers the actual effects of the agricultural system. For example, the means-based analysis might look at pesticides and fertilization methods that farmers are using, and effect-based analysis would consider how much CO 2 is being emitted ...
Soil erosion in a wheat field near Pullman, US. High population density is not always related to land degradation. Rather, it is the practices of the human population that can cause a landscape to become degraded. Severe land degradation affects a significant portion of the Earth's arable lands, decreasing the wealth and economic development of ...
The effects of denudation have been written about since antiquity, although the terms "denudation" and "erosion" have been used interchangeably throughout most of history. [3] In the Age of Enlightenment , scholars began trying to understand how denudation and erosion occurred without mythical or biblical explanations.
The origin of the increased sediment transport into an area may be erosion on land or activities in the water. In rural areas, the erosion source is typically soil degradation by intensive or inadequate agricultural practices, leading to soil erosion, especially in fine-grained soils such as loess. The result will be an increased amount of silt ...
Soil erosion is the result of natural physical forces, such as water and wind, gradually wearing away the topsoil in a field. [5] This process can be slow and inconspicuous or occur rapidly, leading to significant topsoil loss. [5] Apart from soil erosion, there are other severe soil degradation issues, including soil compaction, reduced ...
Erosion control is the practice of preventing or controlling wind or water erosion in agriculture, land development, coastal areas, river banks and construction. Effective erosion controls handle surface runoff and are important techniques in preventing water pollution , soil loss , wildlife habitat loss and human property loss.