Carrying Capacity Of Comprehensive Evaluation Of The Land Of Cities And Prefectures In Hunan Province

The land is now material base of whole national economic and social development. With its limted and the peple's growth, the contradiction between land and peple is upgrading. The land issue has always been one major inssue of China's modernization process. To some degree,the land comprenhensice carring capacity(LCCC) just becomes the key to the sustainable land use.The research on LCCC not only procides new interface,thoughts,and meithods sustainale land use,but also puts torward important decision support to regional sustainable development. Hunan is located in the subtropical humid monsoon climate zone, superior naturalconditions, regional development has a long history. Greater population density, less land and more people have become increasingly conspicuous, and the cities have different resource endowments as a result of geographical location, The coordinated development of regional face challenges. Correctly evaluate the bearing capacity of cities,can in favor of putting forward specific policy to the cities.The paper studied the land carring capacity, economic capacity and ecological carrying capacity of 14 Citis of Hunan Province . The main content is divided into four parts:First, reviewed the connotation of the land carrying capacity and research results.Giving the summary of research results and future trends about production potential from the land and land carrying capacity both at home and abroad. Analysis the problems of past research leads to a comprehensive bearing capacity of the land. Summarized the features and content of comprehensive study of land carrying capacity. Second, Introduced the basic profiles of Hunan Province, including physical geography, economic and social resources, ecological and demographic overview of the situation.Third, Calculated theland carrying capacity, economic capacity and ecological carrying capacity of the various cities.And evaluate the results and analysist the causes. Finally, evaluated the bearing capacity of the land. According to the evaluation results, we divided the whole Hunan province into three types:the high-level carrying capacity sub-region,the mid-level carrying capacity sub-region,and the low-level carrying capacity sub-region.ChangZhuTan is attributed to the first category. The rapid economic development of the area and terrain to plains mainly in order to land a higher bearing capacity and economic capacity.However, due to the accelerated development of industrial damage to the environment and increasing population, weak ecological carrying capacity. Therefore,it must pay more attention to ecological and environmental protection,and control population growth. Yueyang, Hengyang, Chenzhou, Changde, Yiyang belonged to the middle region.On the one hand, the area is abundant in arable land,on the other hand, the level of economic development needs to be improved. Xiangxi area, Shaoyang, Huaihua are low bearing areas.Its mainly in mountainous terrain, making the lack of arable land. The area should seize the opportunity of developing the western region, accelerate the development of self-reliance and at the same time protect the ecological environment continues to play the role of the ecological functions of the district.Finally, from population control, economic development, ecological protection and use of technology, put forward countermeasures and suggestions.