自然资源学报

自然资源学报 ›› 2005, Vol. 20 ›› Issue (6): 909-915.doi: 10.11849/zrzyxb.2005.06.015

• 资源经济 • 上一篇    下一篇

甘肃省2003年的水足迹评价

王新华1, 徐中民1, 李应海2   

  1. 1. 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室, 兰州 730000;
    2. 宁夏大学土木与水利工程学院, 银川 750021
  • 收稿日期:2005-05-08 修回日期:2005-08-08 出版日期:2005-12-25 发布日期:2005-12-25
  • 作者简介:王新华(1975-),男,河南郑州人,博士研究生,主要从事水资源和生态经济方面的研究.E-mail:wangxh@lzh.ac.cn
  • 基金资助:

    国家自然科学重点基金项目(40235053);国家自然科学基金项目(40201019);多地区和部门的气候变化影响和适应性评价项目(AS25)资助

A Rough Estimate of Water Footprint of Gansu Province in 2003

WANG Xin-hua1, XU Zhong-min1, LI Ying-hai2   

  1. 1. State Key Laboratory of Frozen Soil Engineering, CAREER, CAS, Lanzhou 730000, China;
    2. College of Civil and Water Conservancy Engineering, Ningxia University, Yinchuan 750021, China
  • Received:2005-05-08 Revised:2005-08-08 Online:2005-12-25 Published:2005-12-25

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202 | 49

摘要： 水足迹是指在一定的物质生活水平下,维持一定人群消费所需要的总的水资源数量。由于考虑了社会经济系统中虚拟水的消费量,水足迹真实地反映了一个地区人类消费对水资源的占有情况,为水资源科学管理提供了一个新的方法。论文引入了水足迹的概念和计算方法及其相关评价指标,计算分析了2003年甘肃省的水足迹。结果表明,甘肃省2003年的水足迹总量为226.67×108,/sup>m3,人均水足迹878m3,水足迹占总可更新水资源的26%,水资源消费自给率为99.52%,如此高的水资源消费占用比例和自给率,对甘肃省生态环境造成了巨大的压力。

关键词: 水足迹, 虚拟水, 内部水足迹, 外部水足迹, 甘肃省

Abstract: The water footprint concept has been developed in order to have an indicator of water use in relation to consumption of people.The water footprint of a country/region is defined as the volume of water needed for the production of the goods and services consumed by the inhabitants of the country/region.Closely linked to the water footprint concept is the virtual water concept.Virtual water is defined as the volume of water required to produce a commodity or service.There are two ways to calculate the water footprint.Firstly,the water footprint of a country/region can be assessed by taking the use of domestic water resources,subtract the virtual water flow that leaves the country/region and add the virtual water flow that enters the country/region.Secondly,the water footprint can be calculated by multiplying the amount of production of goods and services consumed by the inhabitants of the country/region with the virtual water content of the corresponding products which often expressed in terms of cubic meters of water per ton of the product(=litres/kg),add the amount of domestic living water use.In this paper,we put forward the concept of water footprint and the ways to calculation.Then we compute the water footprint of gansu province in 2003.The result-water footprint of Gansu province in 2003 is 226.67×108m3,per capita 878m3 available.Water self-sufficiency is 99.52%,this is not good for Gansu province because in arid region water is very scarce.This paper also analyses the ways to solve the problem of water scarcity and the structure of water footprint in some typical provinces,and bring forward some ways to reduce the water footprint in order to alleviate water scarcity.

Key words: water footprint, virtual water, internal water footprint, external water footprint, Gansu province

中图分类号: 

  • F062.1