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Assessing Hydrological Cost-Effectiveness of Stormwater Multi-Level Control Strategies in Mountain Park under the Concept of Sponge City

Hou, Qinghe ; Cheng, Yuning ; Yuan, Yangyang ; Wang, Mo

Water (Basel), 2022-05, Vol.14 (10), p.1524 [Periódico revisado por pares]

Basel: MDPI AG

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Título:
Assessing Hydrological Cost-Effectiveness of Stormwater Multi-Level Control Strategies in Mountain Park under the Concept of Sponge City
Autor: Hou, Qinghe ; Cheng, Yuning ; Yuan, Yangyang ; Wang, Mo
Assuntos: Analysis ; Bridges ; China ; Cities ; Cost analysis ; Drainage ; Economic aspects ; Floods ; hydrological cost-effectiveness ; hydrological performance ; Hydrology ; Interception ; Landscape architecture ; Life cycle costs ; mountain park ; Mountains ; Natural resources ; Parks ; Parks & recreation areas ; Performance assessment ; Performance testing ; Planning ; Precipitation ; Runoff ; South Carolina ; sponge city practice ; Storage facilities ; Storms ; Stormwater ; Stormwater management ; stormwater management model
É parte de: Water (Basel), 2022-05, Vol.14 (10), p.1524
Descrição: Within the concept of sponge city in China, green stormwater measures have been widely used in urban mountain parks. This study provides an integrated assessment framework for hydrological cost-effectiveness in the Nanjing Guanyao Mountain Park under various precipitation scenarios. A grey drainage basic strategy and four multi-level control strategies with progressively increasing graded interception or storage facilities at mid-and terminal levels were designed and evaluated. Results show that the multi-level interception and storage strategy (S4) proved to be the most beneficial, followed by the multi-level interception strategy (S2) having slightly lower results than the multi-level storage strategy (S3), while the terminal strategy (S1) showed poor results. However, the hydrological cost-effectiveness exhibits the opposite trend under 2–5-year storms. A high multi-level strategy limited by life-cycle costs may not impart high hydrological cost-effectiveness in response to each return period of storms in this mountain stormwater practice. This study validates the hydrological performance and cost-effectiveness of multi-level distributed strategies in an urban mountain park, bridges the limitations of the previous studies on single scheme design and hydrological performance assessment for sloped sites, and provides a technical reference and design basis for similar studies and practices.
Editor: Basel: MDPI AG
Idioma: Inglês

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Assessing Hydrological Cost-Effectiveness of Stormwater Multi-Level Control Strategies in Mountain Park under the Concept of Sponge City

Hou, Qinghe ; Cheng, Yuning ; Yuan, Yangyang ; Wang, Mo

Basel: MDPI AG

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