[color=rgba(0, 0, 0, 0.9)]Design Description:
Against the backdrop of global climate change, issues related to climate and hydrology have emerged worldwide, such as urban waterlogging, the urban heat - island effect, frequent floods, and ecological damage. The design site is located in Zixing City, Hunan Province, China. To address current problems like local flood disasters and wetland fragmentation, based on the NBS (Nature - based Solutions) concept, we conduct hydrological simulations through the SWMM (Storm Water Management Model), adopt LID (Low - Impact Development) measures, and take actions such as increasing constructed wetlands, expanding river buffer zones, and incorporating community - participatory design. Thus, we enhance soil permeability, promote sustainable water - resource management, boost the resilience of urban hydrology and water quality, regulate urban carbon sinks and climate, support the sustainable development of biodiversity, and guide community residents to co - build the city.
Project Narrative:
Against the backdrop of global climate change, Zixing City, Hunan Province, China, confronts severe challenges including frequent flooding and fragmented wetlands, exacerbating urban waterlogging, heat island effects, and ecological degradation. This project employs Nature-based Solutions (NBS) to restore hydrological resilience and foster sustainable urban-climate equilibrium.
Using the SWMM model, we simulate hydrological processes to identify flood-prone zones, then implement Low-Impact Development (LID) strategies, such as constructing artificial wetlands, expanding river buffer zones, and integrating permeable pavements. These interventions enhance soil permeability, regulate stormwater runoff, and improve water quality. Critically, community participatory design lies at the core: residents co-create rain gardens, adopt ecological ditches, and engage in wetland monitoring, forming a "grassroots hydrological governance network."
The initiative aims to: ① Reduce flood risks by 30% through enhanced water retention; ② Sequester 15% more carbon via restored wetland ecosystems; ③ Boost biodiversity by 25% through habitat connectivity; ④ Empower communities to adopt low-carbon behaviors. By merging scientific modeling with social participation, this project reimagines Zixing as a climate-resilient city where water, ecology, and residents coexist sustainably, offering a replicable NBS model for urban climate adaptation in developing regions.
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