摘要
在促进经济增长的同时减少水资源消耗和水环境污染是实现黄河流域生态保护和高质量发展的重要途径。基于水足迹理论与方法测算黄河流域的水资源消耗和水环境污染状况,运用Tapio脱钩指数模型对水量足迹、水质足迹与经济发展脱钩程度进行分析。结果表明:2000-2019年黄河流域水量足迹整体呈现上升趋势,其中农业生产用水最多;水环境污染得到系统治理,水质足迹呈现波动下降态势。水量足迹、水质足迹与经济发展多处于相对脱钩和弱脱钩状态,水质脱钩优于水量脱钩,但均未达到最佳脱钩状态。黄河流域各区域之间无论是水量足迹、水质足迹或是两者与经济发展脱钩的状态均存在显著差异。其中,水量足迹和水质足迹排名由大到小依次为下游、中游、上游;水量足迹与经济发展脱钩状态表现为上游和下游地区优于中游地区,水质足迹与经济发展脱钩状态由高到低依次为下游、中游、上游。应通过加强农业节水力度和水污染防治并实施区域差异化管理来实现黄河流域水资源与经济发展强脱钩。
Reducing water consumption and water environment pollution while promoting economic growth is an important way to achieve ecological protection and high-quality development in the Yellow River Basin.Based on the water footprint theory and method,we measured the water consumption and water environment pollution,and used the Tapio decoupling index model to examine the degree of decoupling of water quantity(quality)footprint and economic development in the Yellow River Basin.The results showed that the water quantity footprint presented an overall upward trend from 2000 to 2019,with the greatest water demand seen in agricultural production.Water environment pollution had been systematically addressed and the water quality footprint fluctuated in a downward trend.Water quantity(quality)footprint and economic development were mostly in relative and weak decoupling status,and the decoupling status of water quality was better than that of the water quantity,but neither was optimally decoupled.Water quantity footprint,water quality footprint and the decoupling of the two from economic development were significantly differentiated from region to region in the Yellow River Basin.The water quantity footprint and water quality footprint in descending order were as follows:downstream,midstream and upstream.The water footprint was better decoupled from economic development in the upstream and downstream areas than that in the midstream,and the order of decoupling of water quality footprint from high to low was:downstream,midstream and upstream.It is suggested that water conservation in agriculture,water pollution prevention and differentiated regional management should be implemented in order to achieve strong decoupling of water resources and economic development in the Yellow River Basin.
作者
杨燕燕
王永瑜
徐绮阳
YANG Yanyan;WANG Yongyu;XU Qiyang(School of Statistics,Lanzhou University of Finance and Economics,Lanzhou 730020,China)
出处
《水资源与水工程学报》
CSCD
北大核心
2022年第2期1-10,共10页
Journal of Water Resources and Water Engineering
基金
甘肃省哲学社会科学规划基金项目(19YB019)
兰州财经大学科研创新团队支持计划项目(2020LC03)
甘肃省教育厅“双一流”科研重点项目(GSSYLXM-06)
甘肃省优秀研究生“创新之星”项目(2021CXZX-699)。
关键词
水量足迹
水质足迹
脱钩指数模型
黄河流域
water quantity footprint
water quality footprint
decoupling index model
the Yellow River Basin
