STUDY ON RELATIONSHIP BETWEEN VEGETATION COVER AND DISTRIBUTION OF DAYS OF SANDSTORM——TAKING CENTRAL AND WESTERN INNER MONGOLIA  FOR EXAMPLE
GU Wei,CAI Xue-peng ,XIE Feng,LI Zhang-jun, WU Xue-hong
Advances in Earth Science . 2002, (2): 273 -277 .  DOI: 10.11867/j.issn.1001-8166.2002.02.0273