98 million mu of grassland in Inner Mongolia in emergency overgrazing and severe rodent infestation

Economic observation Network reporter Huang, according to the People's Daily reported on the grassland on the floor of the rat hole, so that the horse difficult to Mercedes Benz. The newly-green pasture, devoured by rats, made the herdsmen scratching their heads. The green grassland is turning into a yellow-brown desert.　　The root cause of all this is grassland degradation caused by prolonged overgrazing.　　The herdsmen who lived in the Ulat grassland for more than 40 years Sujaratu never seen so many mice. The Ulat prairie of the May, the yellow-brown surface, looked everywhere is the shocking mouse hole. At this time of the year, the Ulat grassland has become the season of green grass, the color is everywhere.　　According to the Inner Mongolia Autonomous Region grassland workstation statistics, as of May 25, the area of grassland rodent damage area of 98.2168 million acres, of which a serious damage area of 42.4596 million acres. In areas with severe rodent damage, more than 1400 mice are on a hectare of land.　　Come to the prairie, there is no large-scale mouse activity, this is because a few days ago just carried out a large-scale aircraft rodent. "If you come a few days ago, the mice run around, now dare not riding on the grassland, everywhere is a mouse hole, the horse is easy to fall down." "Sujaratu said.　　His home in the Inner Mongolia Bayan Nur city Urad Qianqi Eldenbrag Su-qi Ga. According to statistics, at present all 12 league cities all have rodent infestation, involving 27 flags county area.　　Most of the animal husbandry flag County in Inner Mongolia has become the hardest-hit rats. Since the May, the temperature has picked up, climate change is abnormal, the whole area of Inner Mongolia has a large area of rodent infestation.　　More than 1400 mice can be on a hectare of land in areas with severe rodent infestation. Bayan Nur grassland Station Deputy Webmaster Shangqiang told reporters, in no rodent model County Urad Qianqi, rodent damage area of up to 1 million acres this year, serious damage area of 750,000 acres of rodent.　　Among them, there are 500,000 acres of aircraft control, plan 10 days to prevent and cure, 200,000 mu use of mechanical control, 50,000 acres to take artificial control. Shangqiang said that the best use of aircraft control, one can charge 800 kilograms of medicine, prevention and control of 50,000 acres.　　By observing the recent aircraft control area, we found that no mice were visible outside the cave, but there were still a lot of mice around the cave group in the area of prevention. It is reported that the rodent-killing aircraft was rented from the Ordos general aviation company.　　"Taking off from Ordos began to count money," Alaten, a Urad Qianqi animal husbandry Bureau, said on the day. The number of common rodent species in grassland follows 4 stages of trough period, rising stage, peak period and descent period.　　Inner Mongolia has made the implementation plan of grassland rodent control, actively popularizing and applying the residues biological agents, taking biological, ecological, chemical, physical and other measures to prevent and cure. According to statistics, there have been put in rodent poison bait 1023.5 tons, put into labor 81879 people, technical personnel 3769 people, flying 62 sorties, the use of equipment 11437 times, the vehicle 5807 times.　　At present, rodents in key areas are effectively controlled. Long-term overload grazing grassland degradation is the root cause of rodent infestation. The Inner Mongolian steppe inhabits 50A variety of rodents, the main habitat for the formation of damage to the species are mainly in the vole voles, long claw gerbils, large gerbils and prairie rats.　　Rats not only eat up the grass, but also seriously hinder the normal growth of grass, greatly reducing the biological yield of the grassland, and the formation of grass, and the potential for the livestock, but because of its serious theft, damage to soil structure and grass roots, resulting in large-scale grassland degradation, desertification, damage grassland ecological balance. The results show that the vegetation coverage and vegetation height are the main limiting factors for rodents to choose their habitats, which is not suitable for rodents when the vegetation reaches a certain altitude.　　It can be seen that the long-term overloading of grazing led to grassland degradation, is the root cause of rodent infestation. Inner Mongolia Grassland Workstation Senior Animal Husbandry Division, Grassland rodent control expert Joe For example: The Brandt's voles generally live in the grass is very low, close to the bare place. In the Xilin, the grass grew very high before, and the vole had to live in a narrow area.　　However, due to the continuous drought in recent years, grassland seriously degraded, the vole became an important rodent, not only grazing, but also digging caves, but also exacerbated the grassland desertification. But the grassland extremely desertification also provides the ideal life and the breeding condition for the long claw gerbil, a long claw gerbil's hole system may excavate the ton sand.　　The sand is the material of the sand, which can cause the grassland desertification in a short time.　　At the same time, predators of rodents are reduced, making rodents more prevalent. "Now the mice have no predators.　　"In Sujaratu's memory, 20 years ago, there were foxes, eagles and snakes in their pastures, and now they are not seen." It is understood that although the natural enemy animals can not completely eliminate rodent, but in normal years, they and the number of rodents than to maintain a relatively stable.　　In recent years, due to environmental pollution, especially the widespread use of pesticides, coupled with indiscriminate killing of natural enemy animals, rodents, many of the natural enemies of the year to reduce, so as to provide a large number of rodents breeding opportunity. The rodent-killing area accounted for only about 20% of the actual occurrence, and the hidden danger to rodents next year.　　As of May 25, Inner Mongolia completed the spring grassland rodent control area of 18.7979 million Mu, only 19.1% of the area of damage, not to prevent the proliferation of rodent infestation in the next year's rodent occurrence and harm buried hidden dangers. According to the reporter understand, the grassroots many places lack of control funds.　　Urad Qianqi Agriculture and Animal Husbandry Bureau deputy director, the Prairie work station stationmaster harp Bato thinks, this serious rodent is accumulated in the previous several years the total eruption, in the past only points on the prevention and cure, cannot achieve large area prevention and cure.　　Due to the huge funding gap, Inner Mongolia has completed every year the grassland rodent area accounted for only about 20% of the actual area. The prediction system of rat emotion is not perfect, and the weak technical force is also an important cause of rat infestation. "It is very important to establish a complete system of rat condition monitoring, and it is suggested that the country should incorporate the grassland rodent prediction and control system into planning."　　"Inner Mongolia Agriculture and animal husbandry Hall Grassland Workstation Plant Protection Section chief Zhang Zhuai said." What is more worrying is that the voles, gerbils and other rodents have increased their drug resistance in recent years, and the traditional rodent-killing drugs are significantly lethal.Weakened, while there is a general lack of new rodent-killing drugs on grassland with little side effects in the country, it is urgent to use higher technology drugs.