A Monitoring Method of Land Cover/Land Use Change in Naiman, Inner Mongolia Autonomous Region, China using Landsat Data

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

Naiman Qi is located on the eastern edge of the Horqin desert and has recently experienced desertification. The desertification has progressed due to overgrazing and overcutting and fixed sand dunes began to move again in this area. In this study, we intended to develop a monitoring method of land cover/land use changes using Landsat data in order to analyze the progression of desertification. First, we were able to define the area that underwent desertification (hereafter referred to as “desertified area”) using the following 3 indices; vegetation [(TM 4-TM3)/(TM4 + TM3)], structure [(TM 5 - TM 1)/(TM 5 + TM 1)], and redness [(TM 3 - TM 1)/(TM 3 + TM 1)]. We determined the yearly changes by superimposing the desertified areas identified based on data from different years. Second, we developed a monitoring method of land cover/land use changes to analyze the changes in the desertified areas. These methods enabled us to obtain basic information for clarifying the desertification processes.

作成者 Toshiaki IMAGAWA Michikazu FUKUHARA Takeshi WATANABE
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 163
終了ページ 169
言語 eng