RESEARCH ON THE COUPLING AND COORDINATED DEVELOPMENT OF POPULATION-RESOURCE-ECONOMY-ENVIRONMENT SYSTEM IN YUNNAN PROVINCE
By constructing a coordination development index system for the population,resources,economy and environment subsystems,as well as their composite system in Yunnan Province,the comprehensive development level and coupling coordination of Yunnan Province from 2010 to 2021 were calculated based on coupling coordi-nation models and centroid calculation models.The evolution pattern of the development types of subsystems of va-rious prefectures(cities)during the study period was explored and analyzed.Additionally,the grey model GM(1,1)prediction was used to forecast the development trend of the coupling coordination of Yunnan Province for next 10 years(2022-2031).The research results show that:(1)The comprehensive development level and coupling coordination of Yunnan Province are relatively good.During the study period,it changed from being on the brink of imbalance to barely coordinated,showing a trend of continuous optimization.The variation trend of the coupling coordination of the population-economy-resources-environment system in various prefectures(cities)is basically consistent with the overall trend of the provincial coupling coordination;(2)The lagging problems of the subsystems of various prefectures(cities)in Yunnan Province have changed over time.The cen-troid of the subsystems and the centroid of the coupling coordination of the composite system have generally shif-ted to the east,but the extent of the shift is not significant,and the evolution is relatively stable.(3)Over next 10 years,the coupling coordination level of the four systems in Yunnan Province shows a steady upward trend and will remain at the primary coordination stage for a long time.By 2030,it will transition to the intermediate coordi-nation stage.It will still take a long time in the future to achieve a high level of coordination.
Yunnan Provincepopulation-resource-economy-environment systemcoupling coordinationcoordinated development