The Research On Evaluation Of Rural Ecological Carrying Capacity In Dongting Lake Ecological Economic Zone

The harmonious development of natural ecological environment and social economy in Dongting Lake Ecological Economic Zone has become a hot topic.The research on ecological carrying capacity is the key to regional sustainable development.Regional construction should follow the law of natural and social development,based on ecological carrying capacity,to provide countermeasures and suggestions for the construction of Dongting Lake ecological Economic Zone and promote the common development of ecological environment and social economy.First of all,this study referred to relevant literature studies at home and abroad,summarized the connotation,characteristics and research objects of ecological carrying capacity,and combined with the physical geography,ecological environment and social and economic development status of the study area,to build an evaluation index system of ecological carrying capacity from the level of ecological resilience,resource carrying capacity,environmental carrying capacity and human supporting force.Secondly,a large number of relevant index data were found,and the range method and entropy weight method were used to determine the weights of each index of rural ecological carrying capacity in Dongting Lake Ecological Economic Zone from 2012 to 2020.The changes of rural ecological carrying capacity in time,space and between regions were compared and analyzed.Based on the above evaluation results,the following conclusions are drawn:the spatial difference of rural ecological carrying capacity in Dongting Lake Ecological Economic zone is large.The index of rural ecological carrying capacity of the whole region increased from 0.488 in 2012 to 0.505 in 2020,and the overall level rose to a medium level.The level of rural ecological carrying capacity in Yueyang City,Yiyang City,Changde City and Wangcheng District showed a fluctuating state,and the other three regions showed an upward trend except Wangcheng District.During 2020,The average level of rural ecological carrying capacity of the 25 counties was ranked as Anhua County>Taoyuan County>Yueyang County>Shimen County>Jinshi County>Pingjiang County>Linxiang City>Wangcheng District>Dingcheng District>Taoyuan County>Yunxi County>Junshan District>Linxi County>Yuanjiang City>Hanshou County>Heshan County>Lixian County>Xiangyin County>Ziyang County>Nan County>Wuling District>Miluo City>Huarong County>Yueyanglou District.This study analyzes and summarizes the changing trend of the four subsystems in terms of time,space and region.The results showed that the ecological resilience index of Dongting Lake Ecological Economic Zone showed a downward trend during 2012-2020.The rural resource carrying capacity of Dongting Lake Ecological Economic zone showed a decreasing trend,but the change was small.The rural environmental carrying capacity of Dongting Lake Ecological Economic Zone showed a fluctuating and rising trend.The human supporting force index of Dongting Lake Ecological Economic Zone increased slightly.Combined with the concrete analysis,the corresponding countermeasures for the four subsystems are put forward to promote the coordinated development of rural ecology and economy,and the strategies for the construction of rural ecological civilization are put forward.