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Comprehensive Evaluation of the Importance of Ecological Land in Arid Hilly Cities in Northwest China: A Case Study of the Core Urban Area of Lanzhou

Author

Listed:
  • Yiping Liu

    (Institute of County Economic Development & Rural Revitalization Strategy, Lanzhou University, Lanzhou 730000, China)

  • Chengpeng Lu

    (Institute of County Economic Development & Rural Revitalization Strategy, Lanzhou University, Lanzhou 730000, China
    School of Economics, Lanzhou University, Lanzhou 730000, China)

  • Jinhuang Mao

    (Institute of County Economic Development & Rural Revitalization Strategy, Lanzhou University, Lanzhou 730000, China
    School of Economics, Lanzhou University, Lanzhou 730000, China)

  • Jiaxing Pang

    (College of Earth and Environment Sciences, Lanzhou University, Lanzhou 730000, China)

  • Zhiliang Liu

    (Institute of County Economic Development & Rural Revitalization Strategy, Lanzhou University, Lanzhou 730000, China
    School of Economics, Lanzhou University, Lanzhou 730000, China)

  • Muchen Hou

    (Institute of County Economic Development & Rural Revitalization Strategy, Lanzhou University, Lanzhou 730000, China
    School of Economics, Lanzhou University, Lanzhou 730000, China)

Abstract

Cities in hilly arid areas of northwest China have generally experienced a low level of economic development; they also have unique natural characteristics such as climate, soil, terrain, environment, and surface cover. High quality ecological lands are those that provide humans and the environment with relatively high levels of ecological services including soil, water, and air purification, adsorbing pollutants, or providing water or nutrients needed by plants. In this study, ecological lands were classified as woodland, grassland, water area, and bare land. The present study constructed an ecological land model designed to evaluate the importance of such land from the perspective of ecological service function and ecological demand intensity. Results revealed that: (1) This model can help researchers to better analyze the structure and spatial characteristics of ecological land in cities and also meet the needs of ecological protection and urban management in highly urbanized areas. (2) In terms of ecological service function and ecological demand intensity, the most important ecological land is mostly distributed in densely populated and urbanized areas, and the spread of urbanization is conducive to the improvement of land ecological value for the arid hilly area of northwest China. (3) Among all types of ecological land, the water area had the highest ecological value in the study area, while the grassland had the most potential for improvement, as careful planning and use can allow grassland to function as an ecological barrier while providing good, aesthetically pleasing space for leisure activities for the general public. (4) Qilihe and Xigu districts have more generally important graded areas of forest, grassland, and bare land, although the current ecological value of these lands is limited, though they have great potential for ecological improvement.

Suggested Citation

  • Yiping Liu & Chengpeng Lu & Jinhuang Mao & Jiaxing Pang & Zhiliang Liu & Muchen Hou, 2021. "Comprehensive Evaluation of the Importance of Ecological Land in Arid Hilly Cities in Northwest China: A Case Study of the Core Urban Area of Lanzhou," Land, MDPI, vol. 10(9), pages 1-18, September.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:9:p:942-:d:630684
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    References listed on IDEAS

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    1. Jian Peng & Minli Zong & Yi'na Hu & Yanxu Liu & Jiansheng Wu, 2015. "Assessing Landscape Ecological Risk in a Mining City: A Case Study in Liaoyuan City, China," Sustainability, MDPI, vol. 7(7), pages 1-23, June.
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    1. Honglei Cui & Mei Liu & Chen Chen, 2022. "Ecological Restoration Strategies for the Topography of Loess Plateau Based on Adaptive Ecological Sensitivity Evaluation: A Case Study in Lanzhou, China," Sustainability, MDPI, vol. 14(5), pages 1-17, March.

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