鲁卜哈利沙漠的特点及成因

地处阿拉伯半岛南部的鲁卜哈利沙漠是世界上最大的流动沙漠，其沙丘的移动主要由季风引起，并且由于风向和主流风的差异，沙漠的沙丘被分成3个类型区，即东北部新月形沙丘区、东缘和南缘星状沙丘区、整个西半部线形沙丘区。对于鲁卜哈利沙漠的成因，国内外一直缺少系统的研究。通过对现有资料的分析，可以发现气候、地形、古地理等自然因素是影响鲁卜哈利沙漠形成的主要因素，人类的影响不明显。

Th characteristics and causes of the Rub Al Khalidesertec11aractenstlcs and oI the h desert

Rub al Khali desert which located in the southern part of the Arabian Peninsula is the world＇s largest mobile desert. The movement of dunes is mainly caused by the monsoon. Because of the differences of wind direction and mainstream wind, the desert sand dunes were divided into three types of zones, namely, the Northeast crescent sand dune area, the eastern margin and the southern margin stellate sand dune area, the western half linear sand dune area. There is lacking in systematic research on the causes of the Rub al khali desert at home and abroad. Based on the analysis of available information, it can be found that climate, topography, palaeogeography etc. natural factors are the main causes to impact Rub al khali desert, and the human impact is not obvious.