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干旱半干旱区城市水绿时空耦合下绿地 “蓄用协同”技术研究
刘晖,刘永,许博文,曹朔,左翔
0
作者简介:
摘要:
干旱半干旱地区城市化发展促使不透水下垫面的扩 张和连续,引发内涝,而快排式城市雨水管网浪费稀少的水资 源,城市中雨水产汇流过程与绿地布局及绿化设计在时空上缺 少合理匹配。自然界干旱环境中的植物精准地选择在地表汇水 低洼及背风、背光坡向的立地条件,也造就了地带性植物的耐 旱习性。据此提出干旱半干旱区城市街区建设地块中“水绿时 空耦合”绿地“蓄用协同”生境营造的技术路径,构建基于街 区竖向关系产汇流分区、优化土壤持水能力、选取适宜的植物 配置结构类型与植物品种及设置相应的辅助设施等系列技术方 法体系,并通过案例说明该技术的应用。
关键词:  风景园林  干旱半干旱区  城市水绿时空耦合  绿 地水文单元  生境营造  “蓄用协同”  风景园林技术
DOI:
基金项目:
Study on the "Collecting and Utilizing System" Technology of Green Space under the Urban Aquagreen Space-time Coupling in Arid and Semi-arid Areas
LIU Hui,LIU Yong,XU Bowen,CAO Shuo,ZUO Xiang
Abstract:
The urbanization in arid and semi-arid areas promotes the expansion and continuity of impervious surface, which leads to waterlogging, while the rapid drainage of urban rainwater pipe network wastes water resources, and the confluence process of urban rainwater lacks a reasonable match with the layout and the design of green space in time and space. In the natural arid environment, plants precisely choose the site conditions of low-lying surface catchment and leeward and backlit slope, which also results in the drought-tolerant habits of zonal plants. The paper proposes the technical path of habitat creation by "the aqua-green space-time coupling" green space "collecting and utilizing system" in arid and semi-arid areas, constructs the technical method system, including the zoning of resource and confluence based on the vertical conditions of the block, the optimization of soil water-holding capacity, the selection of suitable plant configuration structure types and plant species, and the setting-up of corresponding auxiliary facilities. It illustrates the application of the technology through the case study.
Key words:  landscape architecture  arid and semi-arid areas  urban aqua-green space-time coupling  green space hydrological unit  habitat creation  "collecting and utilizing system"  landscape architecture technology

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