STUDY ON RELATIONSHIP BETWEEN VEGETATION COVER AND DISTRIBUTION OF DAYS OF SANDSTORM——TAKING CENTRAL AND WESTERN INNER MONGOLIA  FOR EXAMPLE

doi:10.11867/j.issn.1001-8166.2002.02.0273

Advances in Earth Science ›› 2002, Vol. 17 ›› Issue (2): 273-277. doi: 10.11867/j.issn.1001-8166.2002.02.0273

Special Issue: “沙尘天气追因、影响及治理”虚拟专刊；

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STUDY ON RELATIONSHIP BETWEEN VEGETATION COVER AND DISTRIBUTION OF DAYS OF SANDSTORM——TAKING CENTRAL AND WESTERN INNER MONGOLIA FOR EXAMPLE

GU Wei ¹,CAI Xue-peng ¹ ,XIE Feng ¹,LI Zhang-jun ², WU Xue-hong ²

1.Key Laboratory of Environmental Changes and Natural Disaster, Ministry of Education, Institute of Resources Science, Beijing Normal University ,Beijing 100875,China;2.Weather Station of Autonomous Region of Inner Mongolia，Huhhote 010051,China

Received:2001-12-07 Revised:2001-12-28 Online:2002-12-20 Published:2002-04-01

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GU Wei,CAI Xue-peng ,XIE Feng,LI Zhang-jun, WU Xue-hong. STUDY ON RELATIONSHIP BETWEEN VEGETATION COVER AND DISTRIBUTION OF DAYS OF SANDSTORM——TAKING CENTRAL AND WESTERN INNER MONGOLIA FOR EXAMPLE[J]. Advances in Earth Science, 2002, 17(2): 273-277.

An analysis on the relationship between percentage of coverage of vegetation and days of sandstorm in central and western Inner Mongolia autonomous region is performed in this paper, taking percentage of coverage of vegetation and days of sandstorm as indexes and using the NDVI data of NOAA/AVHRR and meteorological observation data from earth surface. The study shows that in this area :
(1) Positive anomaly of days of sandstorm matches with the negative anomaly of percentage of coverage of vegetation in 1980’s and negative anomaly of days of sandstorm matches with the positive anomaly of percentage of coverage of vegetation in 1990’s.
(2) There is a negative interrelation between the days of sandstorm and the percentage of coverage of vegetation, which varies due to the difference of geomorphic feature and the changes of season.
The negative interrelation between the percentage of coverage of vegetation in summer(July、August and September) in sand-covering area and the days of sandstorm in the next year is of the most markedness.

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