Linking Greenspace Ecological Networks Optimization into Urban Expansion Planning: Insights from China’s Total Built Land Control Policy

Zhou Shen, Wei Wu, Ming Chen, Shiqi Tian and Jiao Wang
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Zhou Shen: College of Land Management, Nanjing Agricultural University, Nanjing 210095, China
Wei Wu: College of Land Management, Nanjing Agricultural University, Nanjing 210095, China
Ming Chen: College of Land Management, Nanjing Agricultural University, Nanjing 210095, China
Shiqi Tian: College of Land Management, Nanjing Agricultural University, Nanjing 210095, China
Jiao Wang: College of Land Management, Nanjing Agricultural University, Nanjing 210095, China

Land, 2021, vol. 10, issue 10, 1-20

Abstract: Greenspace ecological networks (GENs) optimization is an effective way to prevent landscape fragmentation and promote ecological processes. Built land sprawl is an important factor affecting this optimization. However, few studies have specifically analyzed the encroachments caused by existing built land on GENs. Given the insights from China’s total built land control policy, this study proposed a new idea of linking GENs optimization into urban expansion planning through land transformation. This idea was implemented in the Su-Xi-Chang area and integrated a series of methods, emphasizing the importance of built land encroachments removal for restoring the connectivity and quality of GENs. We identified that the built land encroached on GENs. Furthermore, we proposed to transfer the scattered rural/industrial land, whose amount was set as the land quota for urban expansion planning. Four scenarios of urban expansion were simulated based on China’s land use policies/practices and assessed by landscape metrics. The land transformation happened between rural and urban land. The main findings indicated that more inclusive urban expansion planning with consideration of the GENs optimization can be obtained. This study has practical contributions regarding GENs optimization and urban expansion planning for policymakers and our ideas of land transformation provide a reference for similar studies.

Keywords: ecological networks; urban expansion; built land; encroachments; land transformation (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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