DB37-T 4499-2022 水安全评价指南

37EvaluationguidanceforwaterI 2 2 2 8 8 8 本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规定1水安全评价指南水安全评价watersecurityeval供水安全watersupplyse水生态安全waterecologicalse水管理安全watermanagementse重点水利工程keywaterconserva对区域水资源供给、水灾害防控、水生态保护产生重大作用的各类水利工4评价方法24.1.1水安全评价采用层次分析法确定。4.1.2层次分析法将水安全评价指标b)准则层反映水安全保障的不同方面，针对山东省的特点，准则层分为供水安全、防洪减灾安c)指标层是水安全评价的具体量化指4.2评价指标体系4.2.2准则层4.2.3指标层——供水安全层包括区域用水保障率、城镇集中供水率、农村自来水普及率、集中式饮用水水源——防洪减灾安全层包括重点河湖防洪标准达标率、除涝标准达标率、因洪经济损失率、因涝经——水生态安全层包括区域水面率、重要河湖水功能区水质达标率、水土保持率、地下水超采系——水管理安全层包括万元区域生产总值用水量、城镇公共供水管网漏损率、工业用水重复利用4.3指标表达式4.3.1供水安全指标4.3.1.1区域用水保障率4.3.1.2城镇集中供水率3R集中——集中供水率；P集中总——总人口，单位为人。4.3.1.3农村自来水普及率P农村总——农村总人口，单位为人。4.3.1.4集中式饮用水水源地水质达标率SR水源地=×100%················N水源地总——集中式饮用水水源地总数，单位为个。4.3.2防洪减灾安全指标4.3.2.1重点河湖防洪标准达标率总SR防洪=×100%······················································总4.3.2.2除涝标准达标率区域SR除涝=×100%······················································区域4S达标——区域除涝标准达标面积，单位为平方千米（km2S区域——区域面积，单位为平方千米（kELR洪=×100%············································ELR洪——因洪经济损失率；RGDP——区域生产总值，单位为万元。ELR涝=×100%············································ELR旱=×100%············································4.3.3水生态安全指标区域区域R水——区域水面率；4.3.3.2重要河湖水功能区水质达标率5SR水功能区=×100%···········SR水功能区——重要河湖水功能区水质达标率；N水功能区总——水功能区监测断面总个数，单位为个。4.3.3.3水土保持率S已治理——已治理水土流失面积，单位为平方千米（km2S应治理——应治理水土流失面积，单位为平方千米（km2）。4.3.3.4地下水超采系数×100%··················k——地下水超采系数；Q实采——地下水实际开采量，单位为万立方米每年（14.3.3.5植被覆盖率土地R植被=×100%·················································土地R湿地——自然湿地保护率；64.3.4水管理安全指标4.3.4.1万元区域生产总值用水量GDP=···················································WRGDP——万元区域生产总值用水量，单位为立方米每万元（m3/万元W总——总用水量，单位为立方米（m34.3.4.2城镇公共供水管网漏损率4.3.4.3工业用水重复利用率4.3.4.4灌溉水有效利用系数毛毛4.3.4.5重点水利工程良性运行率总RWP=×100%·································总74.3.4.6水利监测体系覆盖率R监测=(RMC河湖+RMC取用水大户RMC水源地+RMC水利工程)×100%··································(21)RMC水源地——水源地监测体系覆盖率；河湖RMC河湖=×100%························································河湖RMC取用水大户=×100%······NM取用水大户——水资源信息管理系统中监测取用水大户RMC水利工程=×100%····················4.4指标赋分84.5权重确定方法本文件采用专家打分法确定了各个指标和准则层的建议权重，宜4.6水安全综合评价Bi=∑=1(cij×wj)··································Wj——第j个指标的权重；wSR=∑(Bi×wi)·····················································5水安全综合评价等级确定准则及预警WSR≤30可持续发展满意程度较高。如果达到此标准，建