摘要
利用基于能值分析的环境承载力计量方法,计算1996、2000、2005和2009年间贵州、广西、云南的环境承载力,并进一步分析3个省区的环境承载力演变特征。结果表明,贵州的环境承载力持续下降,1996、2000、2005、2009年分别为2 357、2 032、1 707、1 355万人,超载人口年平均增长5.6%。广西1996、2000、2005、2009年的环境承载力分别为2 144、2 325、1 786、1 371万人,超载人口年平均增长2.8%。云南1996、2000、2005、2009年的环境承载力分别为3 151、3 256、2 521、2 073万人,超载人口年平均增长8.3%。今后应积极变革发展模式,降低人口数量,实现区域的可持续发展。
The environmental capacities of typical karst rocky desertification provinces during 1996, 2000, 2005 and 2009 were calculated using quantitative measurement based on emergy analysis,and consequently the characteristics of environmental capacity evolution were analyzed. The results showed that there was a continuous decrease in the environmental capacity of Guizhou,and the environmental capacities were 23.57 million,20.32 million,17.07 million and 13.55 million in 1996, 2000,2005 and 2009, respectively. The provincial annual average rate of increment of overloading population was 5.6%.The environmental capacities of Guangxi were 21.44 million,23.25 million,17.86 million and 13.71 million in 1996, 2000, 2005 and2009, respectively. The provincial annual average rate of increment of overloading population was 2.8%. The environmental capacities of Yunnan were 31.51 million,32.56 million,25.21 million and 20.73 million in 1996,2000,2005 and 2009, respectively. The provincial annual average rate of increment of overloading population was 8.3%. At last,these provinces should transform development pattern, control population, and tried their best to seek a sustainable development.
出处
《湖北农业科学》
2015年第12期2896-2899,共4页
Hubei Agricultural Sciences
基金
国家自然科学基金项目(31100187)
贵州教育厅项目(13GH069)
贵州师范学院博士项目(14BS018)
贵州省环境特色重点学科项目
关键词
石漠化
能值
环境承载力
可持续发展
rocky desertification
emergy
environmental capacity
sustainable development
