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Article

Construction and Optimization of an Urban Ecological Security Pattern Based on Habitat Quality Assessment and the Minimum Cumulative Resistance Model in Shenzhen City, China

1
School of Geography, South China Normal University, Guangzhou 510631, China
2
School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
*
Author to whom correspondence should be addressed.
Forests 2021, 12(7), 847; https://doi.org/10.3390/f12070847
Received: 11 May 2021 / Revised: 8 June 2021 / Accepted: 23 June 2021 / Published: 26 June 2021
(This article belongs to the Section Forest Economics, Policy, and Social Science)
The rapid development of urbanization has caused many ecological issues and greatly threatened the sustainable development of human society. The construction of ecological security patterns (ESPs) offers an effective way to balance ecological conservation and urbanization. This study aimed to take the highly urbanized city of Shenzhen, China, as a study area to construct an urban ESP and put forward suggestions for the urban development of ecological security. Ecological sources were identified through the Habitat Quality module in the InVEST model, and ecological corridors, strategic ecological nodes, and stepping-stone patches were extracted based on the minimum cumulative resistance (MCR) model. These elements together constituted the ESP. In particular, with the results of the continuous decline in the overall habitat quality, this study identified ten ecological sources with superior habitat quality, mainly distributed in rural woodlands, in urban green land, and in forest park patches. An optimized pattern for Shenzhen City with one axis, three belts, and four zones is proposed, with the study area divided into an ecological preservation zone, a limited development zone, an optimized development zone, and a key development zone. Moreover, forty-five ecological corridors were extracted and graded into three levels, presenting a spatial pattern of one axis and three belts. The appropriate widths of these ecological corridors were suggested to be between 30 and 60 m in Shenzhen City. In addition, we identified twenty-five ecological nodes, sixteen ecological fracture points, and sixteen stepping stones to improve the maintenance and construction of the ecological corridor network. More generally, this study demonstrates a scientific approach to identifying ESPs based on habitat quality, and can serve as a reference for the planning of urban ecological function regionalization. View Full-Text
Keywords: ecological security pattern; habitat quality; ecological security zoning; minimum cumulative resistance model; ecological corridor ecological security pattern; habitat quality; ecological security zoning; minimum cumulative resistance model; ecological corridor
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MDPI and ACS Style

Zhang, Y.-Z.; Jiang, Z.-Y.; Li, Y.-Y.; Yang, Z.-G.; Wang, X.-H.; Li, X.-B. Construction and Optimization of an Urban Ecological Security Pattern Based on Habitat Quality Assessment and the Minimum Cumulative Resistance Model in Shenzhen City, China. Forests 2021, 12, 847. https://doi.org/10.3390/f12070847

AMA Style

Zhang Y-Z, Jiang Z-Y, Li Y-Y, Yang Z-G, Wang X-H, Li X-B. Construction and Optimization of an Urban Ecological Security Pattern Based on Habitat Quality Assessment and the Minimum Cumulative Resistance Model in Shenzhen City, China. Forests. 2021; 12(7):847. https://doi.org/10.3390/f12070847

Chicago/Turabian Style

Zhang, Yu-Zhe, Zhi-Yun Jiang, Yang-Yang Li, Zhi-Guang Yang, Xiao-Hong Wang, and Xian-Bing Li. 2021. "Construction and Optimization of an Urban Ecological Security Pattern Based on Habitat Quality Assessment and the Minimum Cumulative Resistance Model in Shenzhen City, China" Forests 12, no. 7: 847. https://doi.org/10.3390/f12070847

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