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<p>Urban expansion presents escalating challenges to ecological connectivity, while comprehensive research on long-term corridor conservation remains limited. This study integrates Omniscape with land-use scenario simulation to assess urbanization impacts on ecological networks in China’s Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), and Pearl River Delta (PRD) regions. Key findings indicate: (1) By 2035, 41, 29, and 24 critical disruption points are projected for PRD, BTH, and YRD, respectively, requiring prioritized protection; (2) the expansion-loss ratio (corridor loss per urban growth unit) exhibits significant regional variation, with PRD (1.75) demonstrating ratios approximately 15% and 9% of those in YRD (11.56) and BTH (6.88); and (3) regionally tailored conservation strategies are essential due to distinct vulnerability patterns.</p>

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Simulating the potential impact of urban expansion on ecological networks in urban clusters: a case of urban agglomerations in China

  • 期刊论文

  • 发表日期：

    2026年4月3日

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  • Qinghua Xu,
  • Zhifan Ding,
  • Jiayu Qin,
  • Xinghui Bao,
  • Shuolei Chen,
  • Hui Wang

摘要

Urban expansion presents escalating challenges to ecological connectivity, while comprehensive research on long-term corridor conservation remains limited. This study integrates Omniscape with land-use scenario simulation to assess urbanization impacts on ecological networks in China’s Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), and Pearl River Delta (PRD) regions. Key findings indicate: (1) By 2035, 41, 29, and 24 critical disruption points are projected for PRD, BTH, and YRD, respectively, requiring prioritized protection; (2) the expansion-loss ratio (corridor loss per urban growth unit) exhibits significant regional variation, with PRD (1.75) demonstrating ratios approximately 15% and 9% of those in YRD (11.56) and BTH (6.88); and (3) regionally tailored conservation strategies are essential due to distinct vulnerability patterns.