Advances in Disaster Distribution and Control Technology of Poisonous Weeds in Natural Grasslands of China
Grassland is the material basis for the development of animal husbandry,and it is also a very important component to maintain the balance of natural ecological environment in China.For a long time,as to drought,overgrazing,over reclamation and other man-made and natural factors,which are decreasing on high-quality forage year by year,The poisonous weeds are fast growing,reverse succession of grasslands.These results showed that a lot of poisonous weeds in grassland,destroying the balance of natural ecological environment,and a large number of livestock poisoning even death due to grazed poisonous weeds mistakenly.Especially in recent decades,the rapid spreading of poisonous weeds had caused the degeneration of grassland,the decrease of available grass,the degradation of grasslands and poisonous weeds which have seriously affected the economic development of husbandry and cause negative influence on the balance of ecological and the social stability of animal husbandry.According to the analysis and summary of data reported,the species of poisonous weeds,disaster situation and geographical distribution and control technology were reviewed in this paper.
NETL
NSTL
万方数据
维普
