ICS13.020 CCSZ53 DB4401 广州市地方标准 DB4401/T299—2024 河湖健康评价规范 Specificationforriverandlakehealthassessment 2024-12-12发布 2025-01-12实施 广州市市场监督管理局发布 DB4401/T299—2024 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基本规定...........................................................................2 5工作流程...........................................................................3 6指标体系...........................................................................4 7评价方法和赋分标准.................................................................5 8综合赋分..........................................................................22 9评价结果分类标准..................................................................24 10调查与监测.......................................................................24 附录A（资料性）河湖健康评价赋分表..................................................27 附录B（资料性）河湖“四乱”问题认定及严重程度分类表................................36 附录C（资料性）调查监测信息表......................................................38 附录D（资料性）评价指标调查与监测要求一览表........................................48 参考文献.............................................................................53