JOURNAL OF NATURAL RESOURCES ›› 2021, Vol. 36 ›› Issue (2): 420-434.doi: 10.31497/zrzyxb.20210212

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Evaluation of the suitability of urban protective green space layout in industrial cities: A case study of Baotou city, Inner Mongolia

LIU Da-peng(), MA Bin, WANG Yue   

  1. Inner Mongolia University of Science and Technology College, School of Architecture, Baotou 014010, Inner Mongolia, China
  • Received:2019-06-20 Revised:2019-08-21 Online:2021-02-28 Published:2021-04-28

Abstract:

Urban green space is an important part of urban ecological system. Compared with other types of cities, the ecological and environmental problems of industrial cities are prominent. Therefore, more attention should be paid to the network layout and construction of protective green space. From 2000 to 2017, a large amount of high-quality green space in Baotou, an industrial city, was occupied by urban construction. Urban green space was increasingly fragmented with the reduction of patchy and banded green space. A green space ecological network has not yet been formed. With further development of industrialization and urbanization, the current green space bears greater pressure on ecological protection and restoration than ever before. According to the demand characteristics of protective green space construction in Baotou, this paper evaluated the suitability of green space layout in the industrial city based on the isolation and protection concept, resilient theory and GIS spatial analysis technology. On this basis, priority zoning was performed for the green space layout and construction in combination with the spatial distribution characteristics of current green space. The results showed that : (1) The suitable green space layout of the research area was 449.59 km2, accounting for 71.41% of the total area of the research area (629.59 km2), which can increase the coverage rate by 26.7% compared with the current green space coverage rate (44.71%). (2) There were large undistributed green space and large area of low-quality green space in the suitable area. About 25.73% of the suitable area was not distributed with green space, and the NDVI value of about 47.64% of the suitable area was between 0 and 0.2. (3) According to the results of green space layout and construction zoning, the area of 41.02 km2 can be given priority to green space construction. The results can provide theoretical and practical reference for the layout and construction of protective green space in Baotou and other similar cities.

Key words: industrial city, protective green space, spatial layout, suitability assessment, GIS, Baotou city