西藏水资源生态足迹评价与动态预测

发布时间：2018-04-22 16:18

本文选题：水资源 + 生态足迹　；参考：《浙江大学学报(理学版)》2015年05期

【摘要】：水资源是人类生存之根本,是社会发展之命脉,随着水危机的日益加剧,水资源短缺已成为全球关注的热点问题.使用生态足迹模型评估了2003~2012年西藏自治区的水资源状况,结果表明:西藏水资源生态足迹2003~2008年间由0.015 4上升至0.021 2hm2·人-1,2009~2012年逐渐下降;10年平均水资源生态承载力和生态盈余分别为1.217 0和1.198 6hm2·人-1,2003~2012年,生态承载力和生态盈余均呈下降趋势.西藏第一产业水资源生态足迹比例高达90%,第二产业最低为1.07%.藏东南地区的水资源生态盈余明显高于藏北地区,其中拉萨与阿里地区最低;2003~2012年各区人均水资源生态盈余均呈下降趋势,林芝、山南、昌都下降较为显著.经模型预测,西藏2013~2017年的生态盈余仍呈下降趋势,西藏的水资源保护及可持续利用工作应尽快提上日程.
[Abstract]:Water resources are the basis of human survival and the lifeblood of social development. With the worsening of water crisis, water shortage has become a hot issue of global concern. The ecological footprint model was used to assess the water resources in the Tibet Autonomous region from 2003 to 2012. The results show that the ecological footprint of water resources in Tibet increased from 0.015 4 to 0.021 2hm2 from 2009 to 2012, and the average ecological carrying capacity and ecological surplus of water resources in 10 years were 1.217 0 and 1.198 6hm2 from 2003 to 2012, respectively. The ecological carrying capacity and ecological surplus showed a downward trend. The ratio of water resources ecological footprint of primary industry in Tibet is as high as 90 and that of secondary industry is 1.07. The ecological surplus of water resources in southeast Tibet is obviously higher than that in northern Tibet. The per capita ecological surplus of water resources in Lhasa and Ali regions decreased from 2003 to 2012, while Linzhi, Shannan and Qandu declined significantly. It is predicted by the model that the ecological surplus of Tibet from 2013 to 2017 is still on the downward trend, and the conservation and sustainable utilization of water resources in Tibet should be put on the agenda as soon as possible.
【作者单位】：西藏大学农牧学院;
【基金】：国家社会科学基金资助项目(12BJY031)
【分类号】：TV213.4

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