| 摘要: |
| 海绵城市建设视角下的城市绿地在调蓄城市雨洪中承担着日益重要的角色，半湿润地区的海绵绿地具有显著特征，总结其设计方法可为风景园林行业的相关研究和实践提供参考。以河北省迁安市滨湖东路绿地的建设全过程为研究对象，以保障绿地的基本功能和消减绿地内外部径流为前提，将半湿润地区降雨特征 作为研究基础，提出半湿润地区外源径流型海绵绿地的设计方法。针对绿地内部的低影响开发（low impact development，简称 LID）体系，利用 Xpdrainage 软件对场地开发前、后进行不同重现期降雨条件下的径流排放过程的情景模拟，对比分析二者的径流总量、峰值流量和峰现时间。结论： 1）在不同重现期降雨量下，滨湖东路绿地调蓄雨水径流作用显著； 2）半湿润地区外源径流型海绵绿地在设计时须利用定性分析结合定量模拟的设计方法。 |
| 关键词: 风景园林 城市绿地 海绵城市 海绵绿地 低影响开发系统 设计方法 |
| DOI： |
| 分类号:TU986 |
| 基金项目:国家自然科学基金（编号 31800606）； 2015 北京市共建项目（编号 2015BLUREE01） |
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| Method for Designing Exogenous Runoff Sponge Green Space in Semi-humid Region—A Case Study of the Green Space of East Binhu Road in Qian’an City |
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KANG Jiaqi, GE Xiaoyu*
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Beijing Forestry University
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| Abstract: |
| The sponge green open space from the perspective of landscape architecture plays an increasingly important role in the regulation of urban rainwater. The sponge green open space in semi-humid areas has remarkable characteristics. Summing up the design method, we can provide reference for the related research and practice of landscape architecture industry. This paper takes the whole process of green open space construction in Binhu East Road of Qian’an City, Hebei Province as the research object, ensuring the basic functions of green open space and reducing the external runoff in the green open space as the premise, and the rainfall characteristics of the semi-humid areas as the research basis, to put forward the design method for exogenous runoff type sponge green open space in the semi-humid areas. For the Low Impact Development (LID) system inside the green open space, the XPdrainage software is used to simulate the runoff discharge process under different recurrence period rainfall conditions before and after the site development, and the total runoff, peak flow and peak occurrence time of the two is compared and analyzed. Conclusion: 1) Under the different recurrence period rainfall, the green open space is significant in the regulation and storage of runoff in Binhu East Road; 2) The exogenous runoff type sponge green open space in the semi-humid areas needs to be designed in a scientific quantitative way combined with landscape treatment. |
| Key words: landscape architecture green open space sponge city sponge green open space low impact development system design method |
