摘要
本文以作者建立的科尔沁典型沙区专题图形库为例，对利用库信息进行沙漠化定量研究的图形方法进行了系列探讨，设计了可用于沙漠化定量研究的专题分析软件，并对该区的沙漠化现状进行了示例性研究。
Based on the developed data base of the thematic maps for Korqin Sandy area, this paper approaches the graphics in quantitative research of desertification by using the data base information. An analysis software is designed for quantitative research on desertification. And a case study on the present situation of desertification in the study area is carried out. The results show that the desertification here becomes more serious since 1950s, especially since 1970s. However, the structure of desertified land has been changed by artificial factors, that is the area of semi-mobile, semi-fixed and fixed sand dunes is enlarged and the area of mobile sand dunes is reduced. The examination shows that the results of quartitative analyses correspond to the practical situation. There fore the quantitative method is ideal and the software is applicable in relating fields.
出处
《干旱区地理》
CSCD
北大核心
1997年第3期36-42,共7页
Arid Land Geography
关键词
专题图形库
信息
定量研究
图形法
遥感
GIS
data base of thematic map
information
quantitative research
graphics
