| 专题图形库信息定量研究方法 |
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| 引用本文： | 赵永平 徐斌. 专题图形库信息定量研究方法[J]. 干旱区地理, 1997, 20(3): 36-42 |
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| 作者姓名： | 赵永平 徐斌 |
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| 作者单位： | [1]北京大学遥感与GIS研究所 [2]北京大学城市与环境系 |
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| 摘 要： | 本文以作者建立和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。
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| 关 键 词： | 专题图形库 信息 定量研究 图形法 遥感 GIS |
A METHOD ABOUT THE QUANTITATIVE RESEARCH ON THE DATA BASE INFORMATION OF THEMATIC MAPS |
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| Zhao Yongping. A METHOD ABOUT THE QUANTITATIVE RESEARCH ON THE DATA BASE INFORMATION OF THEMATIC MAPS[J]. Arid Land Geography, 1997, 20(3): 36-42 |
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| Authors: | Zhao Yongping |
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| Abstract: | 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. |
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| Keywords: | data base of thematic map information quantitative research graphics |
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