Why is land desertification so serious in Ordos region?

Ordos region is one of the areas with serious desertification in China.

At present, the desertification land area accounts for 86% of the total area. The degraded grassland accounts for 8% of the total grassland area. In addition, due to years of drought and human overgrazing, the Etuoke grassland has become the embryonic form of the Etuoke desert. Ordos people are working every day and governing every year, but they are always governing in a small area and overusing in a large area.

predatory management causes that greening can't keep up with desertification and governance can't keep up with degradation. Form a vicious circle of destruction, construction and destruction. The reasons are as follows:

1. Forest harvesting should be carried out every year in forest farms, rural areas and pastoral areas. What is cut down is the big tree, which destroys the forest microclimate. Young trees are replanted, and it is difficult to form microclimate in a short period of time, which leads to the deterioration of climate in areas where vegetation is destroyed.

2. In the implementation of some ecological construction projects, the emphasis is on high-quality products and high grades. The result of renewing tree species is to cut down the suitable tree and grass species that have been naturally selected for many years and replant some good tree species that are not completely suitable for some people. "

the survival rate or growth of such a good tree species is extremely slow, and the benefits are extremely low, far below the benefits of the original vegetation. It can be said that it costs people and money.

3. In every disaster year, the livestock carrying capacity of grassland is greatly reduced. At this time, the government departments will organize huge manpower, material resources and financial resources to fight disasters and protect livestock, so there will be an imbalance between grass and livestock, and even if the disaster year passes, it will be difficult to restore grassland productivity in the short term.

due to the disaster prevention and livestock protection, the pressure on grassland is still very heavy. Therefore, disaster prevention and livestock protection is a catalyst to accelerate the deterioration of the ecological environment.

4. it is simply to pursue economic growth points and constantly pursue the number of livestock. Due to the increase in the number of livestock, the carrying capacity of the arid and semi-arid grassland, which was extremely fragile, has been aggravated. At this time, animal husbandry is still developed in the traditional way of raising livestock, and the pasture will be eaten by livestock when it turns green, or even uprooted, and there is no chance of growth and reproduction, leaving only inedible plants such as Cynanchum komarovii, Euphorbia fischeriana, Euphorbia Euphorbia, etc.

There is a high density of herds on the grassland, and the hoofs trample on the grassland and break through the ground surface, forming many small wind erosion ports. Under the action of strong wind, these small wind erosion ports will soon form a flaky sandy land-grassland desertification.

to sum up, in addition to natural factors, land desertification in Ordos region is mainly the relationship between agriculture, rural areas, farmers and animal husbandry, pastoral areas and herders.