Evaluation of the Spatial Harmony among Mountains,Rivers,Forests,Farmland,Lakes and Grasses in Chaohu Lake Catchment
Evaluation of spatial harmony provides data support for improving the efficiency of land space utilization.In this study,a comprehensive evaluation indicator system was constructed by screening indicators that meet the characteristics of Chaohu lake catchment and cover various elements of mountains,rivers,forests,fields,lakes and grasses,and the indicator weight was determined by entropy method.Based on the coupling coordination degree model,the spatial and temporal differentiation characteristics of three types of spatial coupling coordination in Chaohu lake catchment in 2016-2021 were analyzed.The results showed that in the time dimension,the coupling coordination degree of Chaohu lake catchment in 2016-2021 remains between 0.35 and 0.38,and the three types of spaces in the catchment are in a state of mild imbalance.The evaluation indicators of the three types of spaces generally show the characteristics of ecological space indicator>agricultural space indicator>urban space indicator,and the ecological space indicator contributes the most to the spatial coordination evaluation of Chaohu Lake catchment.In the spatial dimension,the spatial layout of the Chaohu lake catchment shows a trend of'overall balance,local imbalance'.The coupling coordination degree of Lu'an city continues to be higher than the other four cities,and the Hefei city continues to be lower than the other four cities.It is recommended that Hefei city,while developing the urban economy,adhere to multiple measures to optimize the agricultural structure and continue to increase the protection of the ecological environment.The results provide a reference for the coordinated development of Chaohu lake catchment.
Geographical spaceCoupling coordinationChaohu lake catchment
NETL
NSTL
万方数据
