How to prevent the disaster that locusts bring to us? A hundred-word report on biology. Urgently needed! Urgently needed at 7:30 today!

First, the grassland locust disaster is one of the important reasons for the lack of grass for livestock in pastoral areas. In areas with severe locust plagues, the grass in natural grasslands and enclosed grass fences has been completely harmed, and the bare land has been spread for thousands of miles, causing different consequences. With the degree of desertification, grassland production has suffered devastating damage. Desertification has caused the degradation of 2.07 billion acres of grassland across the country, resulting in more than 50 million less livestock every year, seriously restricting the healthy development of animal husbandry in the disaster-stricken areas.

Second The grassland locust disaster will cause irreversible deterioration of the grassland ecological environment and cause huge damage to the environment. In recent years, grassland pastoral areas have experienced continuous droughts, and grassland pests dominated by locusts have broken out on a large scale, leaving some grassland pastoral areas without leaving any grass. , the red land is thousands of miles away, and the grassland is desertified and degraded. In some places, the phenomenon of insects entering and people retreating has occurred.

Third, grassland locusts in the agricultural and animal husbandry areas often migrate and spread to agricultural areas, harming crop production. , is the source of locust plagues on grain and other crops.

Fifth, in recent years, there has been a new phenomenon of large-scale long-distance migration of grassland locusts

Farmers are generally panic.

Sixth, the occurrence of locust plagues will bring huge economic losses. This loss is manifested in various aspects, both direct and indirect.

First, the principle of environmental protection. Environmental protection principles should consider the subsequent impact of the current large-scale application of chemical pesticides on the grassland ecosystem. The most direct is the poisoning effect on birds, locust natural enemies and other animals. It seriously affects the community structure, interspecific relationships, and biological processes of grassland animals. diversity, reducing the tourism value of grassland and the sustainable use value of agriculture.

Second, ecological principles. Ecological principles should emphasize the biology and ecological laws of locusts themselves and the role of locusts in the entire system food chain. We should not unilaterally emphasize the harmfulness of locusts and ignore their valuable aspects. We should see that locusts are a potentially huge usable resource.

Third, the principle of sustainability. The principle of sustainability must recognize that the occurrence of locusts is affected by many natural factors. The control and management of grassland locusts is an inseparable part of the management and sustainable utilization of the entire grassland ecosystem.