城市绿地景观格局对雨洪过程和雨水系统效果的影响及优化调控研究

项目名称： 城市绿地景观格局对雨洪过程和雨水系统效果的影响及优化调控研究

项目编号： No.51208020

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 建筑环境与结构工程学科

项目作者： 王思思

作者单位： 北京建筑大学

项目金额： 25万元

中文摘要： 快速城市化背景下，洪涝灾害、径流污染、雨水资源流失等雨洪问题严重制约着城市可持续发展。绿地是城市中最重要的透水下垫面，也是生态型雨水设施的空间载体，对雨水产汇流、污染物迁移转化等多种雨洪过程有重要影响。因此，有必要对城市绿地景观格局与雨洪过程的内在关系进行深入研究，并进行优化调控。本研究以北京典型城区为例，综合运用雨洪模型模拟、景观格局和预景分析等方法，定量研究源头式、末端式、综合式等典型绿地景观格局对雨洪过程、雨水系统效果的影响，综合评价"绿地景观格局-雨水设施系统"预景方案的环境效益和经济效益，并提出基于雨洪管理的城市绿地景观的评价指标、优化布局模式和设计导则。本研究从风景园林与城市雨洪管理相结合的视角，在城区和地段尺度上，根据绿地景观格局-雨洪过程的定量分析结果，提出城市绿地景观格局的评价方法与优化途径，从而为我国城市绿地规划设计提供科学依据。

中文关键词： 绿色雨水基础设施；景观格局；雨洪控制利用；优化布局；模型模拟

英文摘要： In the context of rapid urbanization, stormwater problems, including floods and water-logging,runoff pullution and waste of rainwater, have severly threatened the sustainibility of Chinese cities. Green space is the most important pervious underlying surface in city, and also the spatial carrier of ecological stormwater facilities. Thus, green space plays a significant role in multiple stormwater processes, such as runoff yield and concentration, and pollutant transport and transform. Therefore, it is essential to study the relationship between landscape pattern of urban green space and stormwater processes, and its optimization approach. The study takes representative urban districts in Beijing as an example. Using study methods of stormwater model simulation, landscape pattern and scenario analysis, the research studies the relationship between typical landscape patterns of green space (source control, end control, and integration of source and end control), and stormwater processes and the effects of stormwater system, evaluates the enrvironmental and economic benefits for different scenarios, and proposes landscape pattern evaluation indexes, optimal patterns and design guidelines for green space. Integrating landscape design with urban stormwater management, the research puts forward the evaluation and opt

英文关键词： green stormwater infrastructure；landscape pattern；stormwater management；optimized layout；model simulation