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JOURNAL OF DESERT RESEARCH ›› 2003, Vol. 23 ›› Issue (6): 686-690.

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Remote Sensing Investigation of Desertification in Longyangxia Reservoir Region

LI feng-xia1, TANG Hong-yu2, SU Wen-jiang1, XU Wei-xing1   

  1. 1. Qinghai Remote Sensing Center, Xining 810011, China;
    2. Qinghai Meteorological Observation Station, Xining 810001, China
  • Received:2002-04-03 Revised:2002-07-04 Online:2003-12-20 Published:2003-12-20

Abstract: Investigation of desertification in Longyangxia reservoir region in Qinghai Province by using Landsat TM data of 1987 and 2000 indicated that the net enlarged desertification area of the region is only 15 220.6 km2,and the increasing area per year is 1 170.8 km2,the annual increasing rate is 0.55 percent;but the tendency of desertification degree and grade is obviously upgoing.

Key words: desertification, remote sensing investigation, Longyangxia reservoir region

CLC Number: