中文摘要：

为了解新材料PLA沙障对近地表气流的影响,通过测定铺设PLA沙障沙丘距地表不同高度的风速,并以铺设麦草沙障沙丘及裸沙丘为对照,对比研究各种规格、迎风坡、坡顶及背风坡地表粗糙度、风速效能及风速廓线差异。

英文摘要：

In order to know the influence of PLA sand barrier on near-surface flow,this paper measured the wind speed at different heights near surface in sand dune with laying PLA sand barrier,took the sand dune with laying straw sand barrier and bare sand dune as control,compared the differences of surface roughness,wind efficiency and wind profile among different specification,windward slope,slope top and leeward slope.