SCIENTIA GEOGRAPHICA SINICA ›› 2017, Vol. 37 ›› Issue (11): 1778-1784.doi: 10.13249/j.cnki.sgs.2017.11.021

• Orginal Article • Previous Articles    

Evaluation of Land Ecological Security in Dali City Based on OWA

Hong Zhang(), Anqi Wang, Beiyang Song   

  1. School of Urban and Environment,Yunnan University of Finance and Economics, Kunming 650211, Yunnan, China
  • Received:2016-11-20 Revised:2017-02-13 Online:2017-11-20 Published:2017-11-20
  • Supported by:
    National Natural Sciences Foundation of China(71363061)


Starting from the angle of natural ecological environment, this article selects 16 indicators to establish the land ecological security evaluation system in Dali City from three aspects of natural factors, environmental factors, landscape factors, and uses the MCE module of IDRISI software of OWA multi criteria decision making evaluation of Dali land ecological security evaluation results of different decision under risk coefficient. The results showed that the different risk attitudes of decision makers, difference of land ecological security evaluation results. In practical application, the study area must be combined with the actual situation as well as planning to select different risk coefficient evaluation, to get a more realistic and effective results. As a whole, the land ecological security in Dali City is getting better and better as the decision risk factor increases.

Key words: OWA, multi criteria decision making, land ecological security, Dali City

CLC Number: 

  • F301.24