Question

essay on effects of soil erosion

Answer 1

Answer:

Soil erosion is a two-phase process, consisting of the detachment of individual particles from the soil mass and their transport by erosive agents such as running water and wind. When sufficient energy is no longer available to transport the particles, a third phase—deposition—occurs.

Explanation:

mark me as brainlist please yarrrr

thank u bro

Answer 2

Soil erosion is always enhanced when the cleared area of land is on a steep slope, because this allows gully erosion to take place. The soil on slopes, too, is easily moved by gravity when it is loosened. The effects of shifting cultivation, overgrazing and deforestation are all worse on steeply sloping land.Where cultivation takes place on steep slopes erosion is greatly aggravated if plants are arranged slope-wise, i.e. in rows up and down the hill slope. This practice of slope-wise cultivation produces ready-made channels down which rain-water can flow carrying away the topsoil.The rapid erosion of soil by wind and water has been a problem ever since land was first cultivated.

The consequences of soil erosion occur both on- and off-site.On-site effects are particularly important on agricultural land where the redistribution of soil within a field, the loss of soil from a field, the break-down of soil structure and the decline in organic matter and nutrient result in a reduction of cultivable soil depth and a decline in soil fertility. Erosion also reduces available soil moisture, resulting in more drought-prone conditionsThe net effect is a⁵ loss of productivity which, at first, restricts what can be grown and results in increased expenditure on fertilizers to maintain yields, but later threatens food production and leads, ultimately, to land abandonment. It also leads to a decline in the value of the land as it changed from productive farmland to wasteland.

Soil erosion is a two-phase process, consisting of the detachment of individual particles from the soil mass and their transport by erosive agents such as running water and wind. When sufficient energy is no longer available to transport the particles, a third phase—deposition—occursRain splash is the most important detaching agent. The soil is also broken up by weathering processes, both mechanical, by alternate wetting and drying, freezing and thawing and frost action and biochemical. Soil is disturbed by tillage operations and by the trampling of people and livestock. Running water and wind are further contributors to the detachment of soil particles.

All these processes loosen the soil so that it is easily removed by the agents of transport. The severity of erosion depends upon the quality of material supplied by detachment and the capacity of the eroding agents to transport it.

hope it's helpful