厦门市海绵城市建设达标面积评价方法研究

Research on Evaluation Method of Sponge City Qualified Area in Xiamen

基于政策背景解析,结合厦门实际,探索研究了一套指标明确、方法清晰、切合实际的海绵城市建设达标面积评定方法。该方法以国土空间总体规划城镇开发边界为评价对象、以管控单元为评价单元,以年径流总量控制率、历史易涝点消除、内涝防治标准达标、城市水体环境质量、可渗透地面面积比例、天然水域面积变化为指标,通过明确各项指标的评价方法及海绵城市建设达标面积核算方法,将海绵城市建设理念本土化、具体化,以进一步科学引导、有序推进厦门市海绵城市建设。

Based on the analysis of policy background and incorporated the reality in Xiamen,an evaluation method for identifying sponge city qualified areas was exploved and proposed with explicit indexes,distinct methodology and good reality correspondence.It is proposed that use urban development boundary in comprehensive territorial spatial planning as the evaluation object,and take control unit as the evaluation unit.The evaluation system includes six indexes:volume capture ratio of annual rainfall,elimination of historical flooding points,qualification of flooding prevention standard,environmental quality of urban water bodies,pervious surface ratio and area change of natural waters.The evaluation methods of each index and sponge city qualified area are established,which can be effectively applied to localize and refine sponge city concept,thereby facilitating the sponge city construction in Xiamen.