水资源与水工程学报2026，Vol.37Issue(3)：46-55,10.DOI:10.11705/j.issn.1672-643X.2026.03.06
再生水对城市水生态系统服务价值贡献研究
Contribution of reclaimed water to urban water ecosystem service value:A case study of Xi'an,a typical water-scarce city in northwest China
摘要
Abstract
To alleviate water scarcity in arid cities in northwest China and leverage the critical substitu-tion role of reclaimed water,this study takes Xi'an as a case study.Valuation methods such as the mar-ket value method and the replacement cost method were used to assess the water ecosystem services value(WESV)from 2005 to 2022.A trade-off and synergy degree model was introduced to analyze the role of reclaimed water in enhancing WESV and optimizing inter-service relationships.The results show that the total WESV of Xi'an City increased from 21.27 billion to 48.56 billion CNY with fluctuations from 2005 to 2022,and it was predominantly composed of regulating services and cultural services.From 2020 to 2022,the contribution rate of reclaimed water to the total WESV continued to increase,exhibiting signifi-cant variations across different services,with the greatest contribution made to ecological water use.Inter-relationships between water ecosystem services were primarily characterized by trade-offs.Reclaimed wa-ter use effectively promoted a shift in the relationships between multiple services from trade-offs to syner-gies,particularly the relationships between water conservation and other services.To foster the sustained growth of WESV and achieve synergistic gains in water ecosystem services,we suggest expanding the scale of reclaimed water use and optimizing its allocation strategies.关键词
再生水/水生态系统服务价值/权衡/协同关系/西北缺水城市Key words
reclaimed water/water ecosystem services value(WESV)/trade-off/synergy relationship/water-scarce cities in northwest China分类
资源环境引用本文复制引用
侯彩霞,曹晶茹,付汉良..再生水对城市水生态系统服务价值贡献研究[J].水资源与水工程学报,2026,37(3):46-55,10.基金项目
国家自然科学基金项目(52270189、52293445) （52270189、52293445）
陕西省教育厅青年创新团队项目(24JP098) （24JP098）
陕西省自然科学基础研究计划项目(2022JM-429) （2022JM-429）
陕西高校青年创新团队(2023-2026) （2023-2026）
