What is soil erosion ,analysise the patter"s which help in the formation of soil?
Answers
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).