Life Community Health Evaluation Of Mountains,Rivers,Forests,Farmland And Lakes Of Three Gorges Reservoir Area(Chongqing)based On Country Scale

Mountains,rivers,forests,farmland and lakes were a life community of mutual connection,interaction and mutual evolution.Three Gorges reservoir area by mountains,water,forest,fields,lakes and other elements was a typical life community.Elements of dynamic diversifications affected health characteristic and structural function of life community,and also influenced ecological security and sustainable development of the lower Yangtze region.This study collected the basic statistics from the Chongqing Statistical Yearbook and the Chongqing Water Resources Bulletin,and obtained the classification and visual interpretation of the TM image with 30-meter spatial resolution,and obtained the land use classification data.elevation,slope and so on.According to the concept life community of mountains,rivers,forests,farmland and lakes,the index system model of mountain-water-forest-field-lake-man is constructed in six aspects: mountain structure,water flow,forest function,agricultural production,river and lake environment and human life.At the same time,the system cluster analysis was selected as the research method,and the health characteristics and pattern of the life community of mountains,rivers,forests,farmland and lakes in the Three Gorges Reservoir area of Chongqing in 2003 and 2015 were diagnosed respectively.Finally,the health status of life community of mountains,rivers,forests,farmland and lakes of Chongqing Three Gorges Reservoir area in the past two years is compared and analyzed.The results of health diagnosis in 2015 show that Wanzhou,Fuling,Yunyang,Kaixian,Wushan,Zhongxian,Fengjie,Fengdu,Wulong,Shizhu,longevity,Yubei,Banan,Jiangjin,Beibei belong to the health zone;Shapingba,south bank,Jiulongpo,Dadukou,Jiangbei belong to the unhealthy area;Wuxi is a mild sick area.The results of health diagnosis in 2003 showed that South bank,Jiulongpo,Dadukou,Jiangbei,Fuling,Zhongxian,longevity,Yubei,Banan,Jiangjin,Beibei belong to sub-health area;Wuxi is a mild sick area;Wanzhou,Yunyang,Kaixian,Wushan,Fengjie,Fengdu,Wulong,Shizhu are moderate morbid area.The study changes from 2003 to 2015 are as follows: The number of healthy urban areas increased from 0 to 15;sub-health area city from 11 to 0;unhealthy city 0 to 5;mild morbid area is still Wuxi;moderate morbid area from 8 to reduce to 0.In general,the health status of the forest community in the Three Gorges Reservoir area has gradually improved.The reason is that the health of the field system and the human system is getting better.