2012•Yunnan dili huanjing yanjiuRequires access

DYNAMIC ANALYSIS OF WATER RESOURCES ECOLOGICAL FOOTPRINT AND ECOLOGICAL CARRYING CAPACITY IN YUNNAN PROVINCE

Chang Long-fang

Abstract

According to the calculation model of water resources ecological footprint,the water resources ecological footprint and ecological carrying capacity in the last ten years in Yunnan Province were analyzed.The results showed:(1)There are big differences in the ecological carrying capacity in the last ten years,the maximum of 285×106hm2 in 2001,and the minimum of 175×106hm2 in 2009,but the water resources ecological footprint is nearly on the same level;(2)The ecological footprint of water resources per capita was at the range of 0.5306 hm2-0.5669hm2,while the water resources ecological footprint per 104 yuan GDP continued to decrease;(3)Production water resources accounted for the largest ecological footprint among all the using water index,all over 21.0×106hm2,and ecological environment water consumption was the least,all under 1.0×106hm2.

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Key concepts: Ecological footprint, Carrying capacity, Per capita, Water resources, Water use, Geography, Ecological deficit, Environmental science