Question

preventing soil erosion serves double purpose. substantial?​

Answer 1

5.1.1 Soil Erosion

Soil erosion is a particularly serious problem worldwide (Boardman, 2006; Manzatto et al., 2002; Orimoogunje, 2014). It is estimated that erosion of agricultural soils in the United States is responsible for loss of an average of 30 tons per hectare per year, about eight times greater than the rate of soil formation in the human lifetime. Soil erosion is accelerated by a marked landscape slope, removal of vegetation to create agricultural land, drought, soil tillage, wind, or water, but erosion by water is the most widespread and serious. This is because the force of gravity on water and ice may lower the shear strength of landscape slopes, making soils behave like plastics or, under very moist conditions, like fluids (Abrahams, 1986; Brunsden, 1988; Clague and Robert, 2012; Goudie and Viles, 1997; Kanungo and Sharma, 2014; Selby, 1993).

Factors such as rainfall intensity, rainfall volume, slope angle, soil properties, land use, and land management determine soil erosion rates; however, increasing SOM has been demonstrated to effectively reduce soil erosion by wind and water (Rhoton et al., 2002). Agricultural management practices that are particularly important in reducing soil erosion include reducing tillage (Blanco-Canqui and Lal, 2004; Gelaw et al., 2015) and maximizing ground cover with food crops, plant residues, and perennialcover crops. These practices not only reduce soil erosion but also promote soil formation, carbon sequestration, and nutrient retention.

Answer 2

Answer:

soil erosion is a particular problem of world wide