JOURNAL OF NATURAL RESOURCES ›› 2017, Vol. 32 ›› Issue (5): 778-787.doi: 10.11849/zrzyxb.20160486

• Resource Ecology • Previous Articles     Next Articles

The Urban Land Ecological Suitability Evaluation of Yanji-Longjing-Tumen Region

ZHAO Xiao-na,GONG Xue, TIAN Feng-hao, LI Ming-yu   

  1. Department of Geography, College of Sciences, Yanbian University, Yanji 133002, China
  • Received:2016-05-09 Revised:2016-12-31 Online:2017-05-20 Published:2017-05-20
  • Supported by:
    National Natural Science Foundation of China, No.41461036

Abstract: Land is the material basis for the survival and development of human beings. However, the rapid urbanization turns a lot of ecological land into construction land every year, resulting in a series of serious ecological environmental problems. Under the background of the ecological civilization construction, the urban development needs to be reasonably planned in order to reduce the influence of urban development on the ecological environment. The premise of reasonable urban planning is to recognize the land ecological suitability and its grade. In view of this, this paper took the Yanji-Longjing-Tumen region in Yanbian Korean Autonomous Prefecture of Jilin Province as the research object and evaluated the urban land ecological suitability in this region. The Yanji-Longjing-Tumen region includes Yanji City, Longjing City and Tumen city, and the whole research scope was 5 088.7 km2. First, this paper built the resistance evaluation system which included twelve factors selected from three aspects of natural geography, socio-economy and ecological constraints. Specifically, they included three factors of natural geography, five factors of social economy and four factors of ecological constraints. Then, by a series of calculations, the comprehensive resistance value and the minimum cumulative resistance value of two types of expansion were calculated and classified. This paper evaluated the land ecological suitability and graded it in Yanji-Longjing-Tumen region by using an approach combining the “Resistance Model” and “Minimum Cumulative Resistance Model” with the spatial analysis technology in GIS. Finally, the results showed that, the urban land ecological suitability of Yanji-Longjing-Tumen region could be divided into the key construction area, the optimized construction area, the restricted construction area and the forbidden zone according to the grade of ecological suitability. Their respective area was 538.55, 743.53, 1 887.46 and 1 919.16 km2, and their respective proportion was 10.58%, 14.61%, 37.09% and 37.71%. Moreover, in the area of 5 088.7 km2 of Yanji-Longjing-Tumen region, the area of land suitable for ecological and suitable for construction respectively accounted for 74.81% and 25.19%. This paper disclosed the space distribution of urban land in each ecological suitability grade, and put forward some suggestions correspondingly in order to provide the theory, technology, decision-making support and reference for the urban land planning in Yanji-Longjing-Tumen region.

Key words: ecological suitability, minimum cumulative resistance model, Yanji-Longjing-Tumen region, land

CLC Number: 

  • F293.2