中文摘要：

形成机制大沙丘并且在 Badain Jaran 的内地的湖抛弃，中国，地球科学的地里的广泛的学术研究的焦点，和一个经常辩论的话题是是否大沙丘的罐头上的大气的降水渗透再装地下水。在现在的学习，概率分发功能和极端每日的降水的回来时期分析基于为 Badain Jaran 的南部的边缘的长期的降水记录抛弃并且内地降水的 2 年的观察被用来在荒芜的区域分类降水。在荒芜的内地的自动气象站和旋涡协变性系统的数据被用来在各种各样的雨事件以后在大沙丘的表面上分析蒸发。结果证明在沙漠的雨事件能被划分成三个范畴。第一是常规降水(CP ) ，它在 5 公里下面，财务为粗略地在沙漠的所有雨事件的 90 % 。第二和第三个范畴是平常的年度最大值(操作维护管理) 和极端降水(EP ) ，在哪个猛冲粗略地 20 公里和超过 40 公里分别地。CP 和操作维护管理的大气的降水分别地在 13 天和 34 个星期内从大沙丘的表面蒸发了。跟随一个 EP 事件，大沙丘的蒸发被上面的干燥的沙层，和一个过长的时期否定地影响为它的完全的移动被要求。积聚的蒸发和雨事件的所有三种类型的积聚的降水显示本地大气的降水没有重要贡献到再装在 Badain Jaran 的内地的地下水系统沙漠。这研究将在 Badain Jaran 沙漠的内地有益于湖的形成机制的全面说明。

英文摘要：

The formation mechanisms of the mega-dunes and lakes in the hinterland of Badain Jaran Desert, China, is the focus of extensive academic research in the field of geoscience, and an often debated topic is whether atmospheric precipitation on the mega-dune can infiltrate to recharge groundwater. In the present study, the probability distribution functions and the return period analysis of extreme daily precipitation based on long-term precipita- tion records for the southern margin of Badain Jaran Desert and 2-year observation of hinterland precipitation were used to classify precipitation in the desert region. The data of automatic weather station and eddy covariance system in the desert hinterland were used to analyze evaporation on the mega-dune surface after various rain events. The results showed that the rain events in the desert could be divided into three categories. The first is conventional precipitation （CP）, which is below 5 mm, accounting for roughly 90 % of all rain events in the desert. The second and third cat- egories are ordinary annual maximum （OAM） and extreme precipitation （EP）, in which precipitation is roughly 20 mm and more than 40 ram, respectively. The atmospheric precipitation of CP and OAM evaporated from the mega- dune surface in 1-3 days and 3-4 weeks, respectively. Following an EP event, the mega-dune evaporation was negatively influenced by the upper dry sand layer, and a lengthy period was required for its complete removal. The accumulative evaporation and accumulative precipitation of all three types of rain events indicated that local atmospheric precipitation had no significant contribution to recharging the groundwater system in the hinterland of Badain Jaran Desert. This research will benefit compre- hensive elucidation of the formation mechanism of lakes in the hinterland of Badain Jaran Desert.