The paper analyzed the information from on-the-spot investigation by ecology methods such as importance value, species diversity index and similarity index,and discussed the characteristics of the structure, the diver...The paper analyzed the information from on-the-spot investigation by ecology methods such as importance value, species diversity index and similarity index,and discussed the characteristics of the structure, the diversity and similarity of plant community in Kerqin sandy land. It will provide scientific basis for exploring and utilizing the sandy land.展开更多
Grasslands have critically important ecological and economic values while most of them have been suffering from various degrees of degradation in China due to overgrazing. The “Forage-Livestock Balance”(FLB)policy h...Grasslands have critically important ecological and economic values while most of them have been suffering from various degrees of degradation in China due to overgrazing. The “Forage-Livestock Balance”(FLB)policy has been implemented for more than a decade, aims to balance the relationship between forage productivity and grazing consumption of grasslands by livestock. According to the review of statistical data and literatures on policy evaluation, FLB-dominated subsidies for grassland ecological conservation policies are ineffective on grassland restoration, livestock reduction in some overloaded areas and improvement on herdsmen livelihood. To deal with the dilemma, we suggest a fundamental shift of strategy from controlling livestock numbers to maintaining and improving grassland health(MIGH) based on ecological theories, and promote the sustainable development of grassland in China. The results show that, FLB policy failed to obtain expected benefits mainly because it interfered with the herders’ autonomous use of contracted grasslands along with the defects of its underlying theory and methodologies. Implementing reward and punishment based on ecosystem health will not only motivate herders to manage their grassland autonomously, but also be more scientific and feasible than FLB.展开更多
文摘The paper analyzed the information from on-the-spot investigation by ecology methods such as importance value, species diversity index and similarity index,and discussed the characteristics of the structure, the diversity and similarity of plant community in Kerqin sandy land. It will provide scientific basis for exploring and utilizing the sandy land.
基金The Strategic Priority Research Program (A) of the Chinese Academy of Sciences (XDA20050103)International Partnership Program of Chinese Academy of Sciences (Global Dryland Programme, 121311KYSB20170004)The National Natural Science Foundation of China (42001267)。
文摘Grasslands have critically important ecological and economic values while most of them have been suffering from various degrees of degradation in China due to overgrazing. The “Forage-Livestock Balance”(FLB)policy has been implemented for more than a decade, aims to balance the relationship between forage productivity and grazing consumption of grasslands by livestock. According to the review of statistical data and literatures on policy evaluation, FLB-dominated subsidies for grassland ecological conservation policies are ineffective on grassland restoration, livestock reduction in some overloaded areas and improvement on herdsmen livelihood. To deal with the dilemma, we suggest a fundamental shift of strategy from controlling livestock numbers to maintaining and improving grassland health(MIGH) based on ecological theories, and promote the sustainable development of grassland in China. The results show that, FLB policy failed to obtain expected benefits mainly because it interfered with the herders’ autonomous use of contracted grasslands along with the defects of its underlying theory and methodologies. Implementing reward and punishment based on ecosystem health will not only motivate herders to manage their grassland autonomously, but also be more scientific and feasible than FLB.
