1.the soil water content of shifting dune(1.27%~1.73%) increased from the foot of dune to the crest,while the fixed dune(1.75%~1.11%) was reverse. Additionally,by using standard deviation and variation coefficient,the vertical layers of soil water content were divided into three layers,i.
流动沙丘含水量(1.27%~1.73%)从上部到下部依次升高,而固定沙丘(1.75%~1.11%)则与此相反;
2.We have observed the structure of these dune sands and analyzed the grain-size,surface textural features and several main chemical elements of them,the results showed that:(1) these dune sands have some eolian structure characteristics which are similar to the recent dune sands;
对这些沙丘砂的沉积构造观察以及粒度、扫描电镜和常量化学元素分析结果表明:(1)这些沙丘砂具有与现代沙丘砂相似的风成沉积构造特征;
3.In view of characteristics of seismic data of gobi-sand dune areas, this paper, through various data-processing means such as quality control, high-pass filltering, dip angle filltering, field static correction, surface consistency deconvolution, precise velocity analysis, denoising before stack, multiple iterative operation of residual static correction, denoising after stack and modification after shift, has raised the data quality of seismic profiles in low signal-to-noise ratio areas and managed to form the seismic data-processing technique for such complex areas as gobi, foreland and dune.
摘要针对戈壁、沙丘地区地震资料的特点，通过对原始资料进行质量控制、高通滤波、倾角滤波、野外静校正、地表一致性反褶积、精细速度分析、叠前去噪、剩馀静校正多次迭代、叠后去噪和偏后修饰等处理，提高了低信噪比地区地震剖面的资料质量，摸索出了一套戈壁、山前、沙丘等复杂地区地震资料处理技术。
4.In fixed sand dune and lowland, the Ψ s values of different growth forms were ordered as follows: shrubs<trees<grasses(P<0.01). Accordingly, similar trends were noted in LWC of different growth forms. Ψ s increased when the soil water potential (Ψ (soil)) elevated from fixed sand dune, via lowland to wetland.
在不同生境中 ,植物Ψs随生境土壤水势 (Ψsoil)升高而增加 ,其中乔木和灌木Ψs变化趋势为 :固定沙丘 <丘间低地 (P<0 .0 1 ) ;
5.The achievers could see the oasis right there beside the sand dune, the losers could only see the dune near the oasis.
成功者看到沙丘旁边的绿洲，失败者看到绿洲旁边的沙丘。
6.The average length of the alar of cresentic dune,with sand dune height of 3～19m,is 37.5 m,and space between alars is 30～66m.
组成“沙垄”的新月形沙丘的两翼平均长37．5m,翼间距30～66m,沙丘高3～19m；
7.When someone slides down the sand dune, he has the feeling as if he were descending from the sky.
包兰铁路在茂密的植被带内轰鸣而过，所有这一切使得沙坡头赢得这样的别称，“世界沙漠之都”。
8.The largest coastal dune field in China lies on the Qinhuangdao coast from Beidaihe to the Luanhe estuary. The dunes is about 20～30m high commonly, of which the tallest is 45m.
秦皇岛市北戴河向南直至滦河河口发育着我国最长的沙丘海岸 ,沙丘高约 2 0～ 30 m,最高 4 2 m。
9.Temperature Features of Sand Dune Surface Layer in Hinterland of Taklimakan Desert
塔克拉玛干沙漠腹地沙丘表面温度特征初探
10.A sandy tract or dune by the seashore.
沙丘海边的沙地或沙丘
