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On the relationship between landscape ecological patterns and water quality across gradient zones of rapid urbanization in coastal China

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  • Li, Yi
  • Li, Yangfan
  • Qureshi, Salman
  • Kappas, Martin
  • Hubacek, Klaus

Abstract

In order to improve water quality and ecosystems health, the focus of river ecological restoration and water ecosystem-based management needs to reach beyond its usual policy domain by restricting the expansion of urban built-up land and reducing urbanization-related pollution. This study aims to assess the impacts of urbanization on water quality for three spatial urban development zones, i.e. center, inner peri-urban and outer peri-urban of the eastern coastal municipality of Lianyungang, China. We analyze the relationship between urban landscape ecological pattern and water quality in three landscape zones. The study explores this relationship and its policy implications. The results of our analysis are as follow: (1) In the center zone, the landscape pattern metrics, largest patch index (LPI) and total class area (CA) were strongly correlated with water quality parameters, such as CODMn and NH3–N; (2) In the inner peri-urban zone, the number of significant relations of land use pattern metrics and water quality parameters in 2008 was greater than that in 2000 and 2004; (3) land use pattern metrics in the outer peri-urban were less correlated to water quality than in the other zones; (4) the degree of correlation in different spatial zones was in following order: center (2008>2000>2004), inner peri-urban (2008>2000>2004), outer peri-urban (2004>2000=2008). Thus, the relationships between landscape and water quality varies significantly over space due to varying watershed characteristics and pollution sources across space.

Suggested Citation

  • Li, Yi & Li, Yangfan & Qureshi, Salman & Kappas, Martin & Hubacek, Klaus, 2015. "On the relationship between landscape ecological patterns and water quality across gradient zones of rapid urbanization in coastal China," Ecological Modelling, Elsevier, vol. 318(C), pages 100-108.
    • Handle: RePEc:eee:ecomod:v:318:y:2015:i:c:p:100-108
    DOI: 10.1016/j.ecolmodel.2015.01.028
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    References listed on IDEAS

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    1. Huang, Shaochun & Hesse, Cornelia & Krysanova, Valentina & Hattermann, Fred, 2009. "From meso- to macro-scale dynamic water quality modelling for the assessment of land use change scenarios," Ecological Modelling, Elsevier, vol. 220(19), pages 2543-2558.
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    Cited by:

    1. Zhao, Zhe & Bai, Yuping & Wang, Guofeng & Chen, Jiancheng & Yu, Jiangli & Liu, Wei, 2018. "Land eco-efficiency for new-type urbanization in the Beijing-Tianjin-Hebei Region," Technological Forecasting and Social Change, Elsevier, vol. 137(C), pages 19-26.
    2. Xiaoyan Gong & Jianmin Bian & Yu Wang & Zhuo Jia & Hanli Wan, 2019. "Evaluating and Predicting the Effects of Land Use Changes on Water Quality Using SWAT and CA–Markov Models," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(14), pages 4923-4938, November.
    3. Xin Zhang & Yuqi Liu & Lin Zhou, 2018. "Correlation Analysis between Landscape Metrics and Water Quality under Multiple Scales," IJERPH, MDPI, vol. 15(8), pages 1-14, July.
    4. Jinyan Zhan & Fan Zhang & Siqi Jia & Xi Chu & Yifan Li, 2018. "Spatial Pattern of Regional Urbanization Efficiency: An Empirical Study of Shanghai," Computational Economics, Springer;Society for Computational Economics, vol. 52(4), pages 1277-1291, December.
    5. Zahra Mokhtari & Shahindokht Barghjelveh & Romina Sayahnia & Salman Qureshi & Alessio Russo, 2022. "Dynamic and Heterogeneity of Urban Heat Island: A Theoretical Framework in the Context of Urban Ecology," Land, MDPI, vol. 11(8), pages 1-17, July.

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