COUPLING COORDINATION ANALYSIS ON THE LAND ECOLOGICAL SECURITY AND FOOD SECURITY IN THE MAJOR GRAIN PRODUCTION AREAS OF THE MIDDLE AND LOWER REACHES OF THE YANGTZE RIVER
This research intends to analyze the coupling coordination development situation of land ecological and food security in the major grain producing areas of the middle and lower reaches of the Yangtze River,provide countermeasures and suggestions for further coordinated development of the two systems,and guide the development of grain industry and ecological agriculture in the middle and lower reaches of the Yangtze River.The article took Jiangsu province,Anhui province,Hubei province,Hunan province,and Jiangxi province,the main grain producing areas in the middle and lower reaches of the Yangtze River,as the research objects.It analyzed the statistical data of land ecology and food security from 2007 to 2021,constructed an evaluation system,and used the coupling coordination and relative development degree models to explore the coupling coordination level and development types of the two system.The results were showed as follows.(1)From 2007 to 2021,the comprehensive index of land ecological and food security showed a phenomenon of"fluctuating and rising".The comprehensive index of land ecological security had increased from an unsafe state of 0.242 5 in 2007 to a relatively safe state of 0.681 3 in 2021,and the comprehensive index of food security had increased from a relatively unsafe state of 0.233 4 in 2007 to a safe state of 0.879 0 in 2021.(2)In 2007,the average coupling coordination degree between land ecological and food security was 0.486 0,which was on the brink of imbalance.In 2021,the average coupling coordination degree increased to 0.879 0,reaching a good coordination stage.The degree of interaction between the two systems continued to increase,and the coordination gradually strengthened.So,it concludes that the major grain producing areas in the middle and lower reaches of the Yangtze River should further develop modern agriculture,strengthen environmental governance and infrastructure construction,and promote the coordinated improvement of land ecological security and food security levels.
the middle and lower reaches of the Yangtze Riverland ecological securityfood securitycoupling coordination
NETL
NSTL
万方数据
