The Outward Extension of an Ecological Footprint in City Expansion: The Case of Beijing
The Outward Extension of an Ecological Footprint in City Expansion: The Case of Beijing
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城市扩张中生态足迹的向外延伸：以北京为例
DOI：
10.3390/su6129371
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发表时间：
2014-12
期刊：
影响因子：
3.9
通讯作者：
Shuo Wang
中科院分区：
文献类型：
--
作者：
Gaodi Xie, Wenhui Chen, Shuyan Cao, Chunxia Lu, Y;Shuo Wang
生态足迹方法采用生物生产区来衡量人类活动对自然资本的需求和影响，进而判断其影响是否在区域生物容量的范围内。在本报告中，提出了一个指标“生态足迹距离(Def)”。结果表明，提出的指标Def可以识别出城市生态足迹随着城市的快速扩张而向外扩展。从2008年到2012年，进口生物容量的比例从48%左右上升到%，这意味着北京的生态影响在逐年扩大。北京的城市降水量从2008年的567公里增加到2012年的677公里，年均增加约25公里。从季节变化来看，北京冬春季的生态足迹距离远高于夏秋季。北京市粮食、油料和肉蛋主要由黑龙江、吉林、辽宁、河北和内蒙古提供，蔬菜和水果主要由海南、广东、河北和山东提供。应采取措施分散进口生物容量的来源，以确保大都市的可持续发展。
A biologically productive area was used in the ecological footprint method to measure the demand and impact of human activities on the natural capital, and further, to judge whether the impact is within the scope of the regional bio-capacity. In this presentation, an indicator “ecological footprint distance (D ef )” is proposed. The results indicated that the proposed indicator D ef could identify the outward extension of a city’s ecological footprint with the city’s rapid expansion. From 2008 to 2012, the proportion of imported bio-capacity increased approximately from 48% to 64%, which implied that the ecological impact of Beijing had expanded year by year. The D ef of Beijing increased from 567 km in 2008 to 677 km in 2012, with an average annual increase of about 25 km. From the perspective of seasonal change, Beijing’s ecological footprint distance in winter and spring was much higher than in summer and fall. The main features of provincial-spatial distribution of Beijing’s D ef were as follows: grain and oil and meat and eggs were mainly supplied by Heilongjiang, Jilin, Liaoning, Hebei and Inner Mongolia; yet vegetable and fruit were mainly supplied by Hainan, Guangdong, Hebei and Shandong. Measures should be taken to decentralize the sources of imported bio-capacity, so as to ensure a sustainable development in Metropolitan cities.
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DOI：
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发表时间：
2001
期刊：
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影响因子：
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作者：
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通讯作者：
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DOI：
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发表时间：
1997-11
期刊：
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影响因子：
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DOI：
10.5962/bhl.title.108152
发表时间：
2012-05
期刊：
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影响因子：
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作者：
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通讯作者：
Isaac Hadwen;L. J. Palmer
影响因子：
64.8
作者：
Costanza, R;dArge, R;vandenBelt, M
通讯作者：
vandenBelt, M