What are the main causes of serious soil erosion in the middle reaches of the Yellow River?

The main causes of serious soil erosion in the middle reaches of the Yellow River include steep terrain, less precipitation, improper human activities, lack of soil and water conservation measures and management methods, and climate change.

There are many main reasons for serious soil erosion in the middle reaches of the Yellow River, which are as follows:

1. The middle reaches of the Yellow River fluctuate steeply, which increases the risk of soil erosion.

2. The rainfall in this area is relatively small, and there is a shortage of water resources, which leads to soil drought and is easily eroded by geomantic omen.

3. The middle reaches of the Yellow River have high population density, frequent agricultural production activities, and improper land use methods such as extensive reclamation of cultivated land, overgrazing and excessive mountain cutting have aggravated the degree of soil erosion.

4. The consciousness of soil and water conservation and the level of science and technology in the middle reaches of the Yellow River are low, and there are no effective measures and management methods for soil and water conservation. Lack of reasonable soil and water conservation projects, such as terraces, vegetation cover, slope protection, etc. , can not effectively prevent soil erosion. At the same time, the lack of effective farmland management and farming techniques, such as unreasonable farming methods and crop rotation system, has also aggravated the problem of soil erosion.

The middle reaches of the Yellow River are also facing the impact of climate change. Climate warming leads to the instability of precipitation and precipitation intensity, and frequent extreme weather events, such as drought and flood, further aggravate the risk of soil erosion.

Modern methods for harnessing the Yellow River;

1, planting grass and trees, returning farmland to forests, grazing on sloping farmland, so that earth and rock will not go downhill and clear water will flow forever;

2. Build terraces, build dams and farmland, and reduce the sediment entering the river;

Building reservoirs in the middle and upper reaches is also an important measure to control the Yellow River. Repairing the reservoir water can not only generate electricity, but also prevent sand and flood control and regulate the runoff of the Yellow River. For example, after the completion of Xiaolangdi water control project, it can play a variety of functions such as flood control, power generation, irrigation, ice prevention, siltation prevention, aquaculture, tourism and so on. Strengthen the downstream levee to ensure foolproof.

To sum up, the main causes of serious soil erosion in the middle reaches of the Yellow River include steep terrain, less precipitation, improper human activities, lack of soil and water conservation measures and management methods, and climate change. In order to reduce the degree of soil erosion, we must strengthen the awareness of soil and water conservation, popularize scientific farmland management and farming techniques, and take effective soil and water conservation measures to protect soil and water resources in the middle reaches of the Yellow River.

Legal basis:

Law of People's Republic of China (PRC) on Soil and Water Conservation

Article 30

The state has strengthened the construction of key water and soil conservation projects such as changing slopes into ladders and warping dams in key areas for prevention and control of soil erosion and key control areas, and strengthened ecological restoration. The water administrative department of the people's government at or above the county level shall strengthen the construction management of key projects of soil and water conservation, and establish and improve the operation management system.