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1·The low numerical value distribution of these two types trace elements in the Aeolian sand facies represents erosion and accumulation under wind force during the cold-dry climate.

这两种类型元素在风成沙中呈现的含量低值揭示了其时干旱寒冷气候作用下 风力的侵蚀 搬运与堆积作用；

2·Dune surface wind velocity distribution differences can lead to wind erosion and aeolian sand in different part of the dune.

沙丘表面风速分布的差异性是导致沙丘不同部位发生风蚀与风积的主要原因。

3·Erosion characteristics of two kinds of typical aeolian soils in Horqin Sandy Land were studied using portable wind tunnel.

通过风洞实验，研究了科尔沁沙地两种典型风沙土的风蚀特征。

4·The aeolian desertification is a land degradation characterized by wind erosion mainly resulted from the excessive human activities in arid, semiarid and part of sub-humid regions in Northern Chian.

沙漠化是干旱、半干旱及部分半湿润地区由于人地关系不相协调所造成的以风沙活动为主要标志的土地退化。