摘要
引入投入产出方法作为分析工具,以黑河流域中游的张掖市为例,计算了各产业部门的直接用水系数、完全用水系数、用水乘数以及各产业部门间的水交换系数。计算结果表明:各农业部门虽然使用了大量的水,但是绝大部分水在生产过程中被嵌入农产品,并成为各产业部门间接用水的最主要来源;各工业和服务业部门间接消耗水资源的能力比较强,对本地经济的发展具有一定的拉动作用;在社会经济系统中充分循环本地有限的水资源有助于用水效率的提高。
This paper presents an empirical input-output analysis method for water-economy interactions. The research based on this method on Zhangye City, which is located in the middle reaches of Heihe River basin, has calculated the direct and indirect water consumption coefficients, the water consumption multipli- er and the water transaction coefficients of various industrial sectors. Results show that the agriculture sectors are the greatest water consumer, but the water consumption is mostly loaded in the agricultural prod- ucts, which is also taken as the main indirect water source of other various sectors. On the other hand, sectors as industry and service although have high water consumption they can stimulate the local economic development. Only the local limit water resources can be rotationally used sufficiently in the social economic systems, could the water use efficiency be improved.
出处
《中国沙漠》
CSCD
北大核心
2008年第6期1197-1201,共5页
Journal of Desert Research
基金
国家自然科学基金重点项目"黑河流域生态-水文过程研究集成"(90702001)
中国科学院知识创新工程重要方向项目"黑河流域水循环与水资源管理研究"(KZCX2-XB2-04-03)共同资助
关键词
投入产出
产业部门
直接用水
间接用水
完全用水
水交换系数
input-output
industrial sectors
direct water consumption
indirect water consumption
totalwater consumption
water transaction coefficients