Causes of rocky desertification in Yunnan-Guizhou Plateau

Cause analysis of rocky desertification in Yunnan-Guizhou Plateau;

First, the vegetation was destroyed.

After the founding of the People's Republic of China, due to a certain period of large-scale land reclamation and unreasonable mining development, the vegetation in this area was seriously damaged, and the soil lacked vegetation protection, resulting in serious soil erosion. Frequent and unreasonable land resources development activities and human factors are the main reasons leading to land rocky desertification.

Second, the karst landform itself.

Carbonate rocks with rich karst landforms in Yunnan-Guizhou Plateau are easy to leach and slow to form soil, which is the material basis for rocky desertification. The high mountains and steep slopes, warm climate and abundant and concentrated rainfall provide erosion power and dissolution conditions for the formation of rocky desertification.

Third, environmental pollution forms acid rain.

The massive emission of automobile exhaust and industrial waste gas leads to the formation of acid rain. The karst landform in Yunnan-Guizhou Plateau is extremely fragile, and its components react with acid rain, further aggravating the rocky desertification.

Extended data

Rocky desertification control

Taking comprehensive management of soil erosion as the core. The control of rocky desertification should follow the principle of soil and water conservation and adapt to local conditions; Adhere to the comprehensive management of soil erosion as the core, improve the sustainable utilization rate of water and soil resources, and organically combine rocky desertification control with ecological projects such as returning farmland to forests, shelterbelt planting, soil and water conservation, drinking water for people and livestock, and poverty alleviation and development to carry out comprehensive prevention and control.

The countermeasures of rocky desertification control should first be based on protecting the places where rocky desertification has not occurred in karst landform areas, preventing it from happening and preventing the potential rocky desertification from deteriorating and evolving; In areas where rocky desertification has occurred, comprehensive management should be carried out to make them gradually develop into benign ones, with emphasis on mild and moderate rocky desertification.

Prevention and control of rocky desertification should be multi-pronged. Such as closing hillsides to facilitate afforestation, afforestation in barren hills, returning farmland to forests, changing people's production and lifestyle, and implementing ecological migration; At the same time, it is necessary to formulate preferential support policies to encourage enterprises, institutions, individuals and non-public economic organizations to participate in rocky desertification control; Special attention should be paid to adjusting the energy structure in rocky desertification areas, speeding up the pace of rural energy construction and reducing the energy consumption of forest resources.

Baidu Encyclopedia-Yunnan-Guizhou Plateau (Southwest Plateau of China)