基于生态足迹的张家口市生态承载力研究与分析

The calculation and analysis of ecological carrying capacity in Zhangjiakou City based on its ecological footprints

利用生态足迹分析方法,对张家口市2011年生态足迹进行了计算,并分析了张家口市生态足迹的变化及其原因。结果表明:张家口市2011年的人均生态足迹是0.218 99hm2,而人均生态承载力为0.759 55hm2,人均生态盈余为0.540 57hm2。生态盈余的存在表明本地区还没有充分利用该地区各种土地。就各种土地类型而言,(1)人均生态足迹:化能地的生态足迹最大,其次为水域和林地;(2)人均生态承载力:耕地的人均生态承载力最大,其次是林地和建成地;(3)人均生态赤字/盈余:化能地和水域出现生态赤字,而其他土地类型则出现生态盈余。

The ecological footprint analysis method was used to calculate the ecological foot- print of Zhangjiakou City in 2011 and analyze its changes and causations. The results showed that the ecological footprint of Zhangjiakou City in 2011 was 0. 218 99 hm2 per capita while its ecological carrying capacity was 0. 759 55 hmz per capita, with per capita ecological sur- plus of 0. 540 57 hm2 , which reveals that this region has not made full use of its various land resources. In terms of various land types, （1） per capita ecological footprint is the largest in natural energy resources land, followed by water and forest land; （2） the largest ecological carrying capacity per capita is in its arable land, followed by woodland and bullring plot; （3） per capita ecological deficit is found in energy resources land and waterland while the ecologi- cal surplus appeares in the other ecological land tvoes.