CAJ | 학술논문

锡林郭勒盟沙尘暴分布与气象因子和下垫面性质有关,沙尘暴西多东少的分布特征,与大风西多东少、降水西北少东南多、温度西南高东北低的分布特征基本相似;大风是沙尘暴的主要动力因子,温度是产生沙尘暴的热力因素,降水和下垫面性质决定了沙尘暴产生的环境条件。沙尘暴日数随着大风日数与温度增加（升高）而增多;随降水增加而减少;下垫面要素中的地形、地貌为沙尘暴的发生提供沙源、起沙条件;土壤成分自西北向东南为棕钙土带、栗钙土带、黑钙土带、灰色森林土带,植被覆盖度依次增加,沙尘暴分布也依次减少。
석림곽륵맹사진폭분포여기상인자화하점면성질유관,사진폭서다동소적분포특정,여대풍서다동소、강수서북소동남다、온도서남고동북저적분포특정기본상사;대풍시사진폭적주요동력인자,온도시산생사진폭적열력인소,강수화하점면성질결정료사진폭산생적배경조건。사진폭일수수착대풍일수여온도증가（승고）이증다;수강수증가이감소;하점면요소중적지형、지모위사진폭적발생제공사원、기사조건;토양성분자서북향동남위종개토대、률개토대、흑개토대、회색삼림토대,식피복개도의차증가,사진폭분포야의차감소。
The sand-dust storm in Xilin Gol League was in connection with meteorological factor and the underlying surface properties.The distribution characteristics of sandstorm in the west was more than that in the east and it was similar to that there was more wind in the west than that in the east,more precipitation in the southeast than that in the northwest,and higher temperature in the southwest than that in the northeast.So the heavy wind was the main dynamic factor of the formation of the sand-dust storm,the temperature was the main thermal factor,and the environmental condition of the sandstorm depended on the precipitation and the underlying surface properties.The number of the days with sand-dust storm rise in accordance with the increasing of the days with heavy wind and temperature,and drop in accordance with the decreasing of the precipitation.Meanwhile,the topography and geomorphy provided the conditions of the source and emission for the occurrence of the sand-dust storm.with the rising of the brown calcium soil zone,chestnut soil zone,chernozem zone,grey wooded soil zone and vegetation coverage in turn from northwest to southeast,the distribution of the sandstorm are dropping in file now.