JOURNAL OF NATURAL RESOURCES ›› 2000, Vol. 15 ›› Issue (3): 218-224.doi: 10.11849/zrzyxb.2000.03.005

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

Quantitative analysis and classified appraisal of agro-ecoclimatic resources in Northwest China

Gansu, Ningxia, Qinghai, BAI Yongping   

  1. Institute of Geography,Chinese Academy of Sciences,Beijing 100101,China
  • Received:2000-03-14 Revised:2000-04-10 Online:2000-09-25 Published:2000-09-25

Abstract: In order to analyze quantitatively and evaluate classifiably agro ecoclimatic resources,based on average data of multiple years from 165 meteorological stations of Northwest China(Gansu,Ningxia and Qinghai),resource indices Cr,efficiency indices Ce and utility coefficient K were calculated by applying the dynamic models of agro ecoclimatic suitability degree.Then,based on month to month average data of multiple years of efficiency indices Ce,twelve types of agro ecoclimatic resources were identified through the analysis of fuzzy cluster.The results indicated that latent potentialities,matching condition and utility degree of agro ecoclimatic resources have obvious characteristics of spatial differentiation.On the basis of the calculation results,the suggestions about exploitation and utilization of the agro ecoclimatic resources in Northwest China(Gansu,Ningxia and Qinghai)are put forward.

Key words: agro ecoclimatic resources, quantitative analysis, classified evaluation, Northwest China(Gansu,Ningxia and Qinghai)