基于足迹家族的青海省资源环境压力定量评估

发布时间：2017-12-27 02:27

本文关键词：基于足迹家族的青海省资源环境压力定量评估　出处：《应用生态学报》2016年04期 　论文类型：期刊论文

【摘要】：为了系统评估人类活动对环境的影响,基于足迹家族构建了资源环境压力评价体系,对青海省的生态足迹、碳足迹、水足迹及资源环境压力作了测评.结果表明:1990—2013年,青海省人均生态足迹由1.32 hm~2增为3.32 hm~2,人均生物承载力由2.33 hm~2降至2.07 hm~2,2006年后出现生态赤字且不断增高,但1990年以来始终存在生物质盈余;人均碳足迹由5.82 t增至15.85 t,目前已超过应对气候变化目标的7.93倍;人均水足迹从967.67m3降低到732.05 m3.1990年以来生态压力一直较低(Ⅰ_b),温室气体(GHG)排放压力由较低(Ⅰ_b)升高到中上(Ⅱ_b),水资源压力很低(Ⅰ_a),资源环境压力由很低(Ⅰ_a)升高为较低(Ⅰ_b).生态压力和水资源压力对资源环境压力的贡献率逐渐降低,GHG排放压力的影响明显增大.资源环境压力的空间差异较大,2013年西宁市很高(Ⅲ_b)、海东市中上(Ⅱ_b)、海西州中下(Ⅱ_a),其他各市州很低(Ⅰ_a),主要压力源也具有明显的空间异质性.今后发展中,各市州应采取差异化减压策略.
[Abstract]:In order to assess the impact of human activities on the environment, the family built footprint pressure on resources and the environment evaluation system of Qinghai Province Based on ecological footprint, carbon footprint and water footprint and environmental pressure were investigated. The results showed that: 1990 - 2013, the per capita ecological footprint of Qinghai province increased from 1.32 hm~2 to 3.32 hm~2 from 2.33 hm~2 hm~22006 to 2.07 years after the ecological deficit and increasing per capita biocapacity, but since 1990 there is always biomass surplus; per capita carbon footprint from 5.82 t to 15.85 T, 7.93 times has more than climate change targets; water footprint per capita decreased from 967.67m3 to m3.1990 732.05 years since the ecological pressure has been low (I _b), greenhouse gas (GHG) emissions by low pressure (I _b) increased to in (II _b), water pressure is very low (I _a), the pressure of resources and environment by very low (I _a) increased as low (I _b). Normal pressure and water pressure on the resources of resources and environmental pressure contribution rate decreased gradually, GHG discharge pressure increases obviously. The spatial difference of the pressure on resources and the environment, Xining city in 2013 is very high (_b III), Haidong city in Haixi prefecture (II _b), lower (II _a), other cities and states are low (I _a), the main sources of stress has obvious spatial heterogeneity. The future development of cities and states should adopt differential decompression strategy.
【作者单位】：宁夏大学资源环境学院;西安石油大学思想政治理论教学科研部;
【基金】：国家社会科学基金项目(14XKS019)资助~~
【分类号】：X24
【正文快照】： 本文由国家社会科学基金项目(14XKS019)资助This work was supported by the National Social Science Foundation of China(14XKS019).2015-07-01 Received,2016-01-21 Accepted.随着工业文明的发展,全球气候变化、生态破坏、环境污染和资源短缺等问题严重威胁着人类社会的可

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