Evaluation of ecological carrying capacity is an important method of analyzing regional sustainable development, study on ecological carrying capacity is to settle the contradictions between resource and environment, ...Evaluation of ecological carrying capacity is an important method of analyzing regional sustainable development, study on ecological carrying capacity is to settle the contradictions between resource and environment, and it is a significant basis for realizing regional sustainable development. This paper, on the basis of the academician Sun Tiehang's "unification of three" for the eco-city construction, established ecological carrying capacity evaluation indexes for the traditional industrial and mining city—Huainan City; and applied GM–BP neural network coupling model for the dynamic evolution and prediction of ecological carrying capacity of Huainan City in the future decade. The results showed that ecological carrying capacity index of Huainan would be 2.13 by 2025, higher than the loadable state 1, so the ecological carrying capacity would keep in the over-loaded level, but the over-loaded degree would be lower than the current. Carrying capacity of arable land, energy and water resources contribute greatly to the improvement of ecological carrying capacity, thus it is imperative to adjust this unreasonable and unsustainable ecological consumption relationship, enhance environmental protection awareness and high-efficiency utilization of resources, and take an energy-saving and intensive development path.展开更多
Urban ecological infrastructure is the ecological background of urban sustainable development and is the basic guarantee for the construction of ecological cities. According to the characteristics of the ecological in...Urban ecological infrastructure is the ecological background of urban sustainable development and is the basic guarantee for the construction of ecological cities. According to the characteristics of the ecological infrastructure of coal-based cities, the ecological infrastructure is divided into two subsystems:natural infrastructure subsystem and artificial infrastructure subsystem. According to each subsystem and its main components(such as atmosphere, green space, hydrology, traffic and transportation), 36 indicators were selected to establish the evaluation system. In addition, the evaluation model was established by means of mean square deviation method and composite index method, and a dynamic analysis was carried out on the ecological infrastructure quality of Huainan City in 2006-2015. The results show that the composite index of ecological infrastructure in Huainan City in 2006-2015 remained at the medium level, and the natural infrastructure at the worse and poor levels, while the artificial infrastructure remained at the medium and excellent levels.展开更多
基金Sponsored by National Natural Science Foundation of China(41101566)
文摘Evaluation of ecological carrying capacity is an important method of analyzing regional sustainable development, study on ecological carrying capacity is to settle the contradictions between resource and environment, and it is a significant basis for realizing regional sustainable development. This paper, on the basis of the academician Sun Tiehang's "unification of three" for the eco-city construction, established ecological carrying capacity evaluation indexes for the traditional industrial and mining city—Huainan City; and applied GM–BP neural network coupling model for the dynamic evolution and prediction of ecological carrying capacity of Huainan City in the future decade. The results showed that ecological carrying capacity index of Huainan would be 2.13 by 2025, higher than the loadable state 1, so the ecological carrying capacity would keep in the over-loaded level, but the over-loaded degree would be lower than the current. Carrying capacity of arable land, energy and water resources contribute greatly to the improvement of ecological carrying capacity, thus it is imperative to adjust this unreasonable and unsustainable ecological consumption relationship, enhance environmental protection awareness and high-efficiency utilization of resources, and take an energy-saving and intensive development path.
基金Sponsored by Scientific Research Project of Higher Learning Institutions in Anhui Province(KJ2016A150)Project of National Natural Science Foundation(41471422)
文摘Urban ecological infrastructure is the ecological background of urban sustainable development and is the basic guarantee for the construction of ecological cities. According to the characteristics of the ecological infrastructure of coal-based cities, the ecological infrastructure is divided into two subsystems:natural infrastructure subsystem and artificial infrastructure subsystem. According to each subsystem and its main components(such as atmosphere, green space, hydrology, traffic and transportation), 36 indicators were selected to establish the evaluation system. In addition, the evaluation model was established by means of mean square deviation method and composite index method, and a dynamic analysis was carried out on the ecological infrastructure quality of Huainan City in 2006-2015. The results show that the composite index of ecological infrastructure in Huainan City in 2006-2015 remained at the medium level, and the natural infrastructure at the worse and poor levels, while the artificial infrastructure remained at the medium and excellent levels.
