【摘要】 我国北方强风蚀区是形成沙尘天气的主要区域,本文依据各风蚀区风速的大小、走向,自然地理条件,沙化土地现状及分布特点,将我国北方沙区分为古尔班通古特沙漠西北缘、天山东段—塔克拉玛干沙漠南缘、柴达木盆地西段、河西走廊—阿拉善、鄂尔多斯—乌拉特、浑善达克沙地东北部、内蒙古东部七个强风蚀区。同时从沙化土地、降水量、风速及大风日数、沙尘天气的发生等方面对强风蚀区空间分布格局及特征进行了分析。更多还原

【Abstract】 Strong aeolian erosion districts of North China are main area of dusty weather formed.In this paper,desertificated lands of North China are divided into seven strong aeolian erosion districts,including northwest verge of Gubantonggute desert,east of Tianshan and south verge of Taklimakan desert,west part of Qaidam Basin,Hexi Corridor and Alashan,Erdos and Wulate,Northeast of Hunshandake sand land,and East of the Inner Mongolia,based on wind speed and wind direction,natural and geography factors,and the current situation and distribution of sandy desertificated land.Meanwhile,the spatial distribution and characteristics of strong aeolian erosion districts was analyzed.更多还原