SCIENTIA GEOGRAPHICA SINICA ›› 2016, Vol. 36 ›› Issue (12): 1870-1876.doi: 10.13249/j.cnki.sgs.2016.12.012

• Orginal Article • Previous Articles     Next Articles

Space Identification of Ecological Importance and Protection on Urban Ecological Land in Yanji-Longjing-Tumen Area

Mingyu Li1(), Fenghao Tian1, Yuzhi Dong2()   

  1. 1.Department of Geography, Yanbian University,Yanji 133002, Jilin, China
    2. Normal College of Yanbian University,Yanji 133002, Jilin, China
  • Received:2016-02-25 Revised:2016-10-15 Online:2016-12-20 Published:2016-12-20
  • Supported by:
    National Natural Science Foundation of China(41461036)

Abstract:

By using the weighted index summation method, the study applied ecological service function, landscape ecological spatial pattern and ecological sensitivity as indicators to determine the ecologically important space of urban ecological lands. Applying the research method of expert consultation and analytic hierarchy process(AHP)to determine both the evaluation criteria and the weight of the evaluation index, and combining spatial analysis of GIS, this article identified the ecologically important space of urban ecological lands in Yanji-Longing-Tumen area. They are categorized into three degrees, i.e. very important, important, generally important, which reflect the protection levels of different ecological lands and the requirements of construction control. The results showed that the very important ecological lands in Yanji-Longing-Tumen account for 25.720%, most of which are cultivated lands, forest lands and water area. The important ecological lands account for 39.500%, most of which are forest lands and cultivated lands. The generally important ecological lands account for 34.780%, which are mainly forest lands. Each of the three types of ecological land had its unique characteristics that required protection by adopting corresponding measures.This study is helpful to trace out the relationships between landscape pattern and ecological process,and provides insights for ecological planning and designing of land consolidation in this area.

Key words: urban ecological lands, ecological importance, space identification, Yanji-Longing-Tumen Area

CLC Number: 

  • K903