What are the causes of desertification in northwest China? What are the governance measures?

? Northwest desert is a desolate and magnificent land. Speaking of this slightly desolate but magnificent land in the northwest, many people are somewhat curious and awed. People in northwest China are rough and straightforward, because there are mountains and canyons in their environment. However, the problem of land desertification in the northwest of China has been deplorable, and this phenomenon has continued and even expanded. The causes of desertification in northwest China are mainly divided into two parts, one is natural and the other is ideological. What is the specific reason? What are its governance measures? Let Bian Xiao answer for you.

First, natural causes.

First, the basis of desertification in northwest China is natural conditions. Northwest China is located in the inland area of China, within the Eurasian continent, far from the ocean, and the ocean has little influence on this area; In addition, the uplift of high mountains, especially the Qinghai-Tibet Plateau, blocked the water vapor in the Indian Ocean, resulting in the least precipitation and the highest dryness in the same latitude area of the world. In addition, the arid, semi-arid and dry, early and semi-humid areas in the northwest inland, which go deep into the hinterland of the mainland, are the most fragile and dry environmental zones with the least precipitation and the largest evaporation at the same latitude in the world. When the climate is dry, desertification develops, and when the climate is wet, desertification is reversed. In recent years, sandstorms occurred frequently in northwest and north China of China, which further aggravated the desertification process in these areas.

Second, human factors.

Second, natural causes provide a foundation for land desertification, and natural causes aggravate the process of land desertification. The pressure of population growth on land is the direct cause of land desertification. Overgrazing, extensive management, blind reclamation, unreasonable use of water resources, excessive logging and unreasonable exploitation are the main manifestations of human activities accelerating the expansion of desertification. Digging Chinese herbal medicines and deforestation are human activities that directly form land desertification. In addition, unreasonable irrigation methods also caused secondary salinization of cultivated land.

Iii. Measures to prevent and control land desertification

As far as the measures to control land desertification are concerned, we can't change the natural aspects, only the human aspects. Governance measures mainly include rational use of water resources; Using biological measures and engineering measures to build a shelter forest system; Adjust the relationship between agriculture, forestry and animal husbandry, and return farmland to forest and grassland; Take comprehensive measures to solve energy problems in agricultural and pastoral areas in multiple ways; Five aspects of controlling population growth.

Fourth, write it at the end.

People should pay attention to the problem of desertification in northwest China. Although the desert has its magnificent side, it is not good for people living there. It is everyone's responsibility to care for the environment and save water!