Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China

Rapid urbanization has led to severe fragmentation of ecological spaces in high-density metropolitan regions, threatening urban ecological security and environmental well-being. While cities explore various restoration strategies, the systematic identification of ecological priority areas remains an...

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Main Authors: Yuxi Zhu, Jianqiang Yang, Le Zhu, Liping Sun
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Land
Subjects:
Online Access:https://www.mdpi.com/2073-445X/14/1/60
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author Yuxi Zhu
Jianqiang Yang
Le Zhu
Liping Sun
author_facet Yuxi Zhu
Jianqiang Yang
Le Zhu
Liping Sun
author_sort Yuxi Zhu
collection DOAJ
description Rapid urbanization has led to severe fragmentation of ecological spaces in high-density metropolitan regions, threatening urban ecological security and environmental well-being. While cities explore various restoration strategies, the systematic identification of ecological priority areas remains an urgent challenge, particularly due to the limitations of multi-scale evaluation methods. This study develops an integrated nested-scale analytical approach to examine ecological elements at metropolitan and central urban levels, using Metropolitan Nanjing as a case study. The framework combines Morphological Spatial Pattern Analysis (MSPA), Landscape Connectivity Analysis, and INVEST Habitat Quality Assessment to identify ecological sources while employing a multi-dimensional ecological resistance evaluation system and Circuit Theory Model for critical node assessment. The findings reveal a notable spatial overlap between ecological pinch points and barrier points across scales, demonstrating the importance of nested-scale coupling in maintaining network stability. Through this analysis, 3297 ecological priority areas are identified and classified into three hierarchical categories, offering a practical framework for optimizing ecological networks in high-density metropolitan regions.
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institution Kabale University
issn 2073-445X
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spelling doaj-art-88957369be00451bb5dc8bbbbacab6b92025-01-24T13:37:44ZengMDPI AGLand2073-445X2024-12-011416010.3390/land14010060Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, ChinaYuxi Zhu0Jianqiang Yang1Le Zhu2Liping Sun3School of Architecture, Southeast University, Nanjing 210096, ChinaSchool of Architecture, Southeast University, Nanjing 210096, ChinaSchool of Architecture, Chang’an University, Xi’an 710064, ChinaSchool of Architecture, Southeast University, Nanjing 210096, ChinaRapid urbanization has led to severe fragmentation of ecological spaces in high-density metropolitan regions, threatening urban ecological security and environmental well-being. While cities explore various restoration strategies, the systematic identification of ecological priority areas remains an urgent challenge, particularly due to the limitations of multi-scale evaluation methods. This study develops an integrated nested-scale analytical approach to examine ecological elements at metropolitan and central urban levels, using Metropolitan Nanjing as a case study. The framework combines Morphological Spatial Pattern Analysis (MSPA), Landscape Connectivity Analysis, and INVEST Habitat Quality Assessment to identify ecological sources while employing a multi-dimensional ecological resistance evaluation system and Circuit Theory Model for critical node assessment. The findings reveal a notable spatial overlap between ecological pinch points and barrier points across scales, demonstrating the importance of nested-scale coupling in maintaining network stability. Through this analysis, 3297 ecological priority areas are identified and classified into three hierarchical categories, offering a practical framework for optimizing ecological networks in high-density metropolitan regions.https://www.mdpi.com/2073-445X/14/1/60ecological priority areashigh-density citiesnested-scale analysiscircuit theorymorphological spatial pattern analysis
spellingShingle Yuxi Zhu
Jianqiang Yang
Le Zhu
Liping Sun
Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China
Land
ecological priority areas
high-density cities
nested-scale analysis
circuit theory
morphological spatial pattern analysis
title Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China
title_full Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China
title_fullStr Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China
title_full_unstemmed Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China
title_short Identification of Ecological Priority Areas Based on Nested-Scale Analysis: A Case Study of Metropolitan Nanjing, China
title_sort identification of ecological priority areas based on nested scale analysis a case study of metropolitan nanjing china
topic ecological priority areas
high-density cities
nested-scale analysis
circuit theory
morphological spatial pattern analysis
url https://www.mdpi.com/2073-445X/14/1/60
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