| 陕西省生态经济系统的可持续发展评价 |
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| 引用本文： | 张素娟,赵先贵,董林林,关帅朋,梁娜,张耀华. 陕西省生态经济系统的可持续发展评价[J]. 农业系统科学与综合研究, 2009, 25(2): 239-242 |
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| 作者姓名： | 张素娟 赵先贵 董林林 关帅朋 梁娜 张耀华 |
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| 作者单位： | 陕西师范大学,旅游与环境学院,陕西,西安,710062 |
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| 基金项目： | 国家自然科学基金，陕西省自然科学基金 |
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| 摘 要： | 运用基于能值分析理论的生态足迹计算模型，计算了陕西省2005年的生态足迹和生态承载力。结果表明：2005年陕西省能值密度为5．02×10^14sej／hm^2，人均生态足迹为4．4810hm^2，人均生态承载力为0．7881hm^2，人均生态赤字达到3．6929hm^2，这说明2005年陕西省的人类活动对生态环境的影响远远超过了生态承载力的范围，其生态经济系统的发展是不可持续的。图1，表3，参10。
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| 关 键 词： | 生态足迹模型 能值分析 生态足迹 生态承载力 |
Ecological Footprint of Shaanxi Province based on Energy Analysis |
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| ZHANG Su-juan,ZHAO Xian-gui,DONG Lin-lin,GUAN Shuai-peng,LIANG Na,ZHANG Yao-hua. Ecological Footprint of Shaanxi Province based on Energy Analysis[J]. System Sciemces and Comprehensive Studies In Agriculture, 2009, 25(2): 239-242 |
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| Authors: | ZHANG Su-juan ZHAO Xian-gui DONG Lin-lin GUAN Shuai-peng LIANG Na ZHANG Yao-hua |
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| Affiliation: | ( College of Tourism and Environmental Sciences, Shaanxi Normal University, Xi＇an 710062, China ) |
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| Abstract: | A modified model for ecological footprint calculation based on energy analysis could translate all kinds of emergy flows in eco-economic systems into corresponding biological production units. The ecological footprint of Shaanxi Province in 2005 was calculated using this method. The results showed that energy density was 5.02 × 10^14 sej/hm^2, eeologieal footprint was 7.716 3 hm^2/cap, ecological carrying capacity was 0.788 lhm2/eap and ecological deficit was 6.928 2 hm^2/cap,which indicate that the utilization of natural resource is beyond the capacity of the natural ecological system, and the present developing model in Shaanxi Province is in an unsnstainable development status to a certain extent. |
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| Keywords: | ecological footprint model energy analysis ecological footprint ecological carrying capacity |
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