School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, 450001, China.
Henan International Joint Laboratory of Water Cycle Simulation and Environmental Protect, Zhengzhou University, No.100, Kexue Avenue, Hi-tech DevelopmentZone, Zhengzhou, 450001, Henan, China.
Sci Rep. 2024 Oct 29;14(1):25924. doi: 10.1038/s41598-024-77340-7.
Quantitative assessment of the water use balance between economic society and ecology (EEWB) is the basis for coordinating the competitive relationship of water use between human activity and ecological requirements and. It is of great significance for optimizing the water resources carrying capacity and achieving a healthy regional water balance. Based on the concept of harmonious balance, this paper puts forward the definition and connotation of EEWB regarding the competition in water use between economic society and ecology. And, a novel framework for assessing the EEWB is proposed. It has four aspects relating to water resources, economic society, ecology, and human-water relationship. Linked to these aspects the Data Envelopment Analysis (DEA) technique, Water Ecological Footprint (WEF) model, InVEST model and indicators system of human-water relationship are used to establish a water resources efficiency index (I), economic society high-quality development index (I), ecology health index (I), harmony index of human-water relationship (I). The four indices were then integrated into the water use balance between economic society and ecology index (I) with Euclidean distance, thus forming the EEWB quantification method system. Finally, the temporal and spatial characteristics of EEWB during 2010-2022 was diagnosed in Henan Province and cities of China. Results reveal that: (1) The water resources utilization efficiency exhibit a changing trend of initial decrease followed by subsequent increase; (2) Southern cities in Henan Province have a higher economic society development level compared to northern cities; (3) I in Henan Province is below 0.60, indicating that the regional ecology health remains consistently vulnerable; (4) I in Henan Province shows an increasing trend, indicating that a gradual improvement and overall upward development in the human-water relationship; (5) I multi-year average was within [0.53, 0.65] in Henan Province, indicating a state of Proximity imbalance. The low level of ecological health is the primary influencing factor. These findings will contribute to a better understanding of the water use balance between economic society and ecology and provide scientific reference for achieving a healthy regional water balance.
经济社会与生态用水平衡定量评价（EEWB）是协调人类活动用水与生态需求用水竞争关系的基础，对于优化水资源承载能力、实现区域健康水均衡具有重要意义。基于和谐平衡理念，本文提出了经济社会与生态用水竞争的 EEWB 概念定义与内涵，并构建了 EEWB 评价框架，从水资源、经济社会、生态、人水关系 4 个方面，运用数据包络分析（DEA）技术、水生态足迹（WEF）模型、生态系统服务价值评估模型（InVEST）及人水关系指标体系，构建水资源效率指数（I）、经济社会高质量发展指数（I）、生态健康指数（I）、人水关系协调指数（I），采用欧氏距离将 4 个指数进行集成，形成经济社会与生态用水平衡指数（I），构建 EEWB 量化方法体系。最后，对 2010-2022 年河南省及下辖城市 EEWB 的时空特征进行诊断。结果表明：（1）水资源利用效率呈先降后升的变化趋势；（2）河南省南部城市经济社会发展水平高于北部城市；（3）I 低于 0.60，表明区域生态健康持续脆弱；（4）I 呈上升趋势，表明人水关系逐步改善、整体向好发展；（5）I 多年平均值在[0.53，0.65]之间，处于临近不平衡状态，生态健康水平较低是主要影响因素。研究结果可为经济社会与生态用水平衡研究提供科学支撑，对实现区域健康水均衡具有重要意义。
