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题名: Biocapacity supply and demand in Northwestern China: A spatial appraisal of sustainability
作者: Yue, DX(岳东霞); Xu, XF; Hui, C; Xiong, YC(熊友才); Han, XM; Ma, JH
收录类别: SCIE ; SSCI ; BIOSIS
出版日期: 2011-03-15
刊名: ECOLOGICAL ECONOMICS
卷号: 70, 期号:5, 页码:988-994
英文摘要: Integrating spatial analysis with the supply and demand of biocapacity is critical for the sustainable development of regional eco-economic systems. Previous studies have focused on the temporal analysis of biocapacity at broad geographical scales, but lacked the systematic spatial realization at fine scales. An improvement is proposed of this conventional methodology of the ecological footprint by incorporating land-use data derived from high-resolution remote-sensing images into the calculation of biocapacity supply at regional, provincial and county levels in Northwestern China in 2000. The spatial heterogeneity and its effect on the biocapacity supply were systematically revealed for this region. First, the biocapacity supply declined from the east (the Guanzhong Basin and the Loess Plateau) to the middle (the Qaidam Basin and the Turpan Basin), and turned to rise from the middle to the west (the northwest of the Xinjiang Uygur Autonomy). Second. although the gap between biocapacity supply and demand resulted in a small ecological deficit at the regional level, a large ecological deficit was observed at the provincial and county levels, highlighting an unsustainable situation for some of the sub-regions. Importantly, a power law relationship was unveiled between the biocapacity supply and population density, suggesting that (i) the biocapacity supply as a critical indicator could reflect the intensity of human exploitation on local biophysical resources and (ii) humans tend to have a preference to inhabit those areas with high biological productivity. These results provide opportunities to enhance policy development by central and local governments as part of the long-term Great Western Development Strategy of China. (C) 2010 Elsevier B.V. All rights reserved.
关键词: Biocapacity ; Ecological footprint ; Remote sensing ; Spatial heterogeneity ; Northwestern China
作者部门: [Yue, Dongxia ; Ma, Jinhui] Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China ; [Xu, Xiaofeng] Lanzhou Univ, Sch Management, Lanzhou 730000, Gansu, Peoples R China ; [Hui, Cang] Univ Stellenbosch, Dept Bot & Zool, Ctr Invas Biol, ZA-7602 Matieland, South Africa ; [Xiong, Youcai] Lanzhou Univ, Minist Educ, Key Lab Arid & Grassland Ecol, Lanzhou 730000, Gansu, Peoples R China ; [Han, Xuemei] Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA
通讯作者: Ma, JH (reprint author), Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
学科分类: Environmental Sciences & Ecology; Business & Economics
文章类型: Article
所属项目编号: National Natural Science Foundation of China [40671179, 70873053, 40721061] ; Program for New Century Excellent Talents in University [NECT-09-0449] ; National Social Science Foundation of China [07XTQ004, 06XJY004] ; National Key Technology R&D Program of China [2007BAC03A11-02] ; National Basic Research Program of China [2009CB421308] ; Ministry of Education
所属项目名称: 国家自然科学基金项目 ; 国家社会科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 国家科技支撑计划 ; 新世纪优秀人才支持计划 ; 高等学校学科创新引智计划(111计划)
项目资助者: NSFC ; NSSFC ; MOST ; MOE ; SAFEA
语种: 英语
DOI: 10.1016/j.ecolecon.2010.12.017
ISSN号: 0921-8009
WOS记录号: WOS:000288931900015
BIOSIS记录号: BIOSIS:PREV201100259209
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/120065
Appears in Collections:资源环境学院_期刊论文

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