Construction of a Multi-level Blue-Green Infrastructure Network in a Riverside City: A Case Study of Shaoxing
The rapid expansion of urbanization has led to the destruction of water network structures and the degradation of ecosystem functions in riverside cities. Blue-green infrastructure (BGI) networks are recognized as a sustainable approach to urban planning. However, previous BGI network constructions...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2025-01-01
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| Series: | Ecosystem Health and Sustainability |
| Online Access: | https://spj.science.org/doi/10.34133/ehs.0287 |
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| Summary: | The rapid expansion of urbanization has led to the destruction of water network structures and the degradation of ecosystem functions in riverside cities. Blue-green infrastructure (BGI) networks are recognized as a sustainable approach to urban planning. However, previous BGI network constructions have often overlooked the role of small, discrete BGIs within urban core areas. To address this gap, this study proposes a framework for constructing a multi-level BGI network. We selected Shaoxing City, a typical riverside city in the Yangtze River Delta region of China, as the study area and integrated water-related ecosystem services into the identification of ecological sources. Following this, we constructed multiscale ecological resistance surfaces for both urban and densely populated areas. Finally, BGI hotspots and connectivity networks in these densely populated areas were identified using heat map analysis, resulting in the formation of a multi-level BGI network. The findings indicated that (a) from 2012 to 2022, the number of ecological sources and corridors diminished, alterations in blue corridors occurred, and water body structures degraded; (b) the BGI network is predominantly distributed in the central and southern regions of the study area, with canals serving as crucial blue corridors; and (c) the multi-level BGI network underscores the critical role of waterways in densely populated urban areas. (d) Based on the BGI network, we developed a spatial optimization scheme of “four cores, three corridors, and three zones”. These insights offer guidance for water ecology protection and spatial pattern optimization in Shaoxing and other similar riverside cities. |
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| ISSN: | 2332-8878 |