摘要
工业水资源利用效率是影响工业用水的核心问题,测度并分析其时空特征可为黄河流域生态保护和高质量发展提供评价依据。将工业用水及水污染排放纳入测度体系,建立非期望产出MinDS窗口模型测算黄河流域工业水资源利用效率,采用核密度估计与变异系数法分析其时空变化,结果表明:2010—2019年黄河流域9省区整体工业水资源利用效率呈现波动性上升的“N”型趋势,总体效率水平有所提高。空间上高效率中心长期位于中下游地区,表现出东高西低的分布态势,效率空间格局非均衡性逐年减弱,分化程度降低。山东、陕西省工业水资源利用效率在流域内处于较高水平,其年平均效率值均超过0.9,2019年流域内中高效率省份占比由2010的44%增加至78%,除青海、甘肃外,均达到中高效率水平。
Industrial water resource utilization efficiency is the core issue affecting industrial water use.Measuring and analyzing its temporal and spatial characteristics can provide an evaluation basis for ecological protection and high-quality development in the Yellow River basin.Incorporating industrial water consumption and water pollution emission into measurement system,establishing an undesirable output MinDS window model to measure industrial water resource utilization efficiency,using kernel density estimation method and variation coefficient method to analyze its spatiotemporal changes.The result shows that the overall industrial water resource efficiency in the 9 provinces of Yellow River basin shows an N-type trend of rising volatility from 2010 to 2019,and overall efficiency was improved.In terms of spatial distribution,high efficiency centers were located mid-downstream for a long time,showing a distribution trend of high efficiency in the east and low efficiency in the west.The unevenness of the spatial pattern of efficiency has been yearly weakened,and the degree of differentiation has decreased.The industrial water resource utilization efficiency in Shandong and Shanxi province was at a high level in the basin,with the multi-year average efficiency value exceeding 0.9.In 2019,the proportion of medium-high efficiency provinces in the basin increased from 44%to 78%,and all provinces except Qinghai and Gansu reached the medium-high efficiency level.
作者
单是豪
倪红珍
汪党献
SHAN Shihao;NI Hongzhen;WANG Dangxian(Department of Water Resources,China Institute of Water Resources and Hydropower,Beijing 100038,China;General Institute of Water Resource&Hydropower Planning and Design,Ministry of Water Resource,Beijing 100120,China)
出处
《水文》
CSCD
北大核心
2023年第3期71-75,共5页
Journal of China Hydrology
基金
中国水利水电科学研究院基本科研项目(WR110156B0042023)
国家重点研发计划项目(2021YFC3200204)。
关键词
黄河流域
工业水资源利用效率
非期望产出MinDS模型
DEA窗口分析
时空分异
Yellow River basin
industrial water resource utilization efficiency
undesirable output MinDS model
DEA window analysis
spatiotemporal differentiation
