The impairment of environmental sustainability due to rapid urbanization in the dryland region of northern China

Zhifeng Liu, Meihui Ding, Chunyang He, Jingwei Li, Jianguo Wu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Rapid urbanization has been taking place in the world's drylands where water and other essential natural resources are scarce. Assessing the environmental impacts of urban expansion is highly important for the sustainable development of these dryland regions and beyond. Thus, this study aimed to assess the effects of urban expansion on environmental sustainability in the agro-pastoral transitional zone of northern China (APTZNC), a major dryland region of China. We first analyzed the patterns and modes of urban expansion and estimated the dynamics of environmental sustainability by integrating indicators of the environmental elements of water, land, air, and biodiversity from 2000 to 2015. Then, we assessed the impacts of the overall process and the different modes of urban expansion on environmental sustainability based on structural equation models. We found that the APTZNC experienced rapid urban expansion dominated by the edge expansion and leapfrog modes. The urban land area increased from 2169 km2 to 6128 km2 at an annual growth rate of 7.17%. This rapid urban expansion had significantly negative influences on environmental sustainability with a path coefficient of −0.98 (P < 0.001), leading to a decline of the comprehensive index of environmental sustainability from 64.22 to 50.77, a decrease of 20.93%. We also found that the three urban expansion modes had different effects on environmental sustainability, where the leapfrog mode had the greatest effect, followed by the edge expansion mode. Thus, effective management is needed to increase urban land efficiency and optimize urban land patterns to promote the sustainability of urban expansion in the APTZNC.

Original languageEnglish (US)
JournalLandscape and Urban Planning
DOIs
StateAccepted/In press - Jan 1 2018

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urbanization
sustainability
sustainable development
environmental impact
natural resource
biodiversity
water
land
air
effect

Keywords

  • Agro-pastoral transitional zone of northern China
  • Drylands
  • Environmental sustainability
  • Land development pattern
  • Structural equation model
  • Urban form

ASJC Scopus subject areas

  • Ecology
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

Cite this

The impairment of environmental sustainability due to rapid urbanization in the dryland region of northern China. / Liu, Zhifeng; Ding, Meihui; He, Chunyang; Li, Jingwei; Wu, Jianguo.

In: Landscape and Urban Planning, 01.01.2018.

Research output: Contribution to journalArticle

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abstract = "Rapid urbanization has been taking place in the world's drylands where water and other essential natural resources are scarce. Assessing the environmental impacts of urban expansion is highly important for the sustainable development of these dryland regions and beyond. Thus, this study aimed to assess the effects of urban expansion on environmental sustainability in the agro-pastoral transitional zone of northern China (APTZNC), a major dryland region of China. We first analyzed the patterns and modes of urban expansion and estimated the dynamics of environmental sustainability by integrating indicators of the environmental elements of water, land, air, and biodiversity from 2000 to 2015. Then, we assessed the impacts of the overall process and the different modes of urban expansion on environmental sustainability based on structural equation models. We found that the APTZNC experienced rapid urban expansion dominated by the edge expansion and leapfrog modes. The urban land area increased from 2169 km2 to 6128 km2 at an annual growth rate of 7.17{\%}. This rapid urban expansion had significantly negative influences on environmental sustainability with a path coefficient of −0.98 (P < 0.001), leading to a decline of the comprehensive index of environmental sustainability from 64.22 to 50.77, a decrease of 20.93{\%}. We also found that the three urban expansion modes had different effects on environmental sustainability, where the leapfrog mode had the greatest effect, followed by the edge expansion mode. Thus, effective management is needed to increase urban land efficiency and optimize urban land patterns to promote the sustainability of urban expansion in the APTZNC.",
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