ICS13.020 CCSP56 50 重庆市地方标准 DB50/T1842—2025 幸福河湖评价技术导则 2025-07-07发布 2025-10-07实施 重庆市市场监督管理局 发布DB50/T1842—2025 I目次 前言.......................................................................................................................................................................III 1范围.....................................................................................................................................................................1 2规范性引用文件.................................................................................................................................................1 3术语和定义.........................................................................................................................................................1 4总则.....................................................................................................................................................................2 5基本条件.............................................................................................................................................................2 河流..............................................................................................................................................................2 水库..............................................................................................................................................................2 6指标体系.............................................................................................................................................................3 一般要求......................................................................................................................................................3 河流..............................................................................................................................................................3 水库..............................................................................................................................................................4 7指数计算.............................................................................................................................................................5 指标数据获取方法与要求.........................................................................................................................5 评价指标赋分..............................................................................................................................................7 指数计算公式..............................................................................................................................................8 8评价报告编制.....................................................................................................................................................8 类型..............................................................................................................................................................8 评价详报......................................................................................................................................................8 评价简报......................................................................................................................................................9 附录A（规范性）幸福河湖评价指标含义、计算方法及赋分标准（适用于河流）..................................10 A.1防洪达标率...............................................................................................................................................10 A.2行洪安全性...............................................................................................................................................10 A.3水质优劣程度...........................................................................................................................................10 A.4污水集中处理率.......................................................................................................................................11 A.5生态流量保证率......