OBJECTIVE FORESTRY

Detailed explanation-1: -Deforestation. Without plant cover, erosion can occur and sweep the land into rivers. The agricultural plants that often replace the trees cannot hold onto the soil and many of these plants, such as coffee, cotton, palm oil, soybean and wheat, can actually worsen soil erosion.

Detailed explanation-2: -Soil erosion decreases soil fertility, which can negatively affect crop yields. It also sends soil-laden water downstream, which can create heavy layers of sediment that prevent streams and rivers from flowing smoothly and can eventually lead to flooding.

Detailed explanation-3: -reduced ability of the soil to store water and nutrients. exposure of subsoil, which often has poor physical and chemical properties. higher rates of runoff, shedding water and nutrients otherwise used for crop growth. loss of newly planted crops. deposits of silt in low-lying areas. 25-Oct-2013