| 摘要: |
| 在重庆海绵城市试点建设背景下，针对山地公园雨洪管理景观系统构建，缺乏以水文–成本综合绩效为导向的设计策略研究。以主城区典型的山坡、山顶地貌的6例公园绿地为对象，提供低、中、高3种设计强度的雨洪管理景观系统策略，对案例的水文效能、全生命周期成本、水文－成本综合绩效进行评估。结果表明：以水文–成本综合绩效最优为依据，案例一般可采用低强度策略；当设计需满足公园年径流总量控制率80%~85%，案例宜采用中强度策略；对于个别缓坡地形案例，成本充足时，可考虑极端降雨事件（如10 a或30 a重现期）的管控，采用高强度策略。为重庆及亚热带季风性湿润气候条件下，探索山坡、山顶地貌城市公园的雨洪管理景观系统的设计方法，提供了韧性策略思路。 |
| 关键词: 风景园林 城市山地公园 雨洪管理 水文 – 成本综合绩效 全生命周期成本 |
| DOI：10.14085/j.fjyl.2021.07.0090.07 |
| 分类号:TU986 |
| 基金项目:国家自然科学基金青年项目（编号 51708452） |
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| Research on Stormwater Management Landscape System Strategies in Mountainous Urban Parks Based on the Hydrological Cost Comprehensive Effectiveness |
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LIU Jialin, LI Wuxi, PENG Ziyue, LIU Zhaoli
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Southwest University
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| Abstract: |
| Under the background of pilot construction of sponge city in Chongqing, few research have been done to study the strategies of constructing the stormwater management landscape system in mountainous urban parks based on the performance of hydrological cost-effectiveness. This research focuses on six typical cases of hilltop and hillside landform conditions, providing the low-, medium- and high-levels of stormwater management landscape system strategies. It assesses the performances of hydrological control, life cycle cost and hydrological cost effectiveness of various strategies. The result shows that the low-level strategy could be used based on the optimal hydrological cost effectiveness performance. The medium level strategy could be adopted when it needs to meet 80%-85% of the total annual runoff control rate of the parks. The high-level strategy could be applied for the gentle slope case under sufficient cost investment to control the extreme rainfall events (as 10-or-30-year return period). This research provides resilient strategies for the design of the stormwater management landscape system in hilltop and hillside urban parks in Chongqing and subtropical monsoon humid climate areas. |
| Key words: landscape architecture mountainous urban park stormwater management hydrological cost comprehensive effectiveness life cycle cost |
| 引用本文: | 刘家琳,李武肸,彭子岳,刘兆莉.基于水文－成本综合绩效的山地公园雨洪管理景观系统策略研究[J].风景园林，2021，28（7）：90-96. |
| LIU Jialin,LI Wuxi,PENG Ziyue,LIU Zhaoli.Research on Stormwater Management Landscape System Strategies in Mountainous Urban Parks Based on the Hydrological Cost Comprehensive Effectiveness[J].Landscape Architecture Journal, 2021, 28(7):90-96. |
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