沙土

用SH固化风沙土的力学性质

Mechanical Properties of the Aeolian Sandy Soil Harding with SH

计算结果表明：美国诺模方程能够很好的用于估算砒砂岩土壤的K值，而对黄土和风沙土的估算误差较大。

The results show that the Normal Equation is suitable for estimating the value of soil erodibility factor , whereas there is relatively large estimation error for Loess and Sandy soil .

沙土地暄，不好走。

It 's hard to walk on the soft sand .

设法把这沙土堆积到模子里。

Try to compact the sand into the mold .

箱子里满是沙土。

The box was full of sand .

他们在沙漠地区种植树木，以此巩固沙土、保护环境。

They plant trees in the desert area to keep the sand and protect the environment .

研究表明，用RBF神经网络方法进行沙土地震液化预测是可行的。

The study shows that the method is feasible to predict the liquefaction of sand soil .

Cecil壤沙土对P和V，尤其是对V的吸持具有动态吸附的特征。

The retention of both , P and V , especially of V , by Cecil loamy sand exhibited a dynamic feature .

运用Matlab对诺模方程进行了修正，得到了适用于公路沿线地区黄土和风沙土高速公路边坡的土壤可蚀性因子K的计算模型。

Parameters in Normal Equation are modified by using MATLAB and we can get the calculating model of K factor suitable for the Loess and Sandy slope soil of highway .

盆栽试验研究了海州香薷和紫花香薷在Cu、Zn、Pb复合污染泥沙土上的重金属耐性与吸收动态。

Pot experiment was conducted to determine the characters of heavy metal tolerance and uptake dynamics of two Elsholtzia plants on a long term Cu , Pb and Zn mixed-contaminated soil .

用内排水法实地测定了比利时北部近海岸草地沙土的非饱和导水率K（θ）和扩散率D（θ）.并求得其经验公式。

Unsaturated hydraulic conductivity K (θ) and diffusivity D (θ) of meadow sandy soil in coastal area of North Belgium are determined in situ by internal drainage method , and their empirical formulae are obtained .

讨论了基于RBF神经网络技术的沙土液化预测分析方法及其有效性。

Based on a large amount of sand soil data , a model for prediction is set up and practical effectiveness of the theory RBF neural network is discussed .

刚性驱动轮在松散沙土上重复通过时的性能预测利用PAM防治松散扰动沙土风蚀效果的风洞试验研究

Prediction of the Multi-Performance of a Rigid Driven Wheel in Sand Wind tunnel experiment on the impacts of polyacrylamide on wind erosion of loosen soil materials

江苏省是一个以平原地区为主的省份，有2万多km2平原沙土区。

There are plain-sand areas about 2 × 10 ~ 4 km ~ 2 in Jiangsu .

随着幼苗的季节生长，与环境CO2浓度比较，CO2倍增将导致土壤剖面上CO2浓度最大区域由表面向壤土和沙土边界层的转移。

Compared with the ambient CO 2 , elevated CO 2 led to the peak of CO 2 concentration distribution shifted from soil surface layer to the boundary layer as seasonally growing of seedling roots .

本试验结果表明：在黄棕壤、两合土、沙土3种土壤中均有VA菌根真菌的存在，都以球孢霉属（Glomus）为主，以Gl。

The results of the study showed that VA mycorrhizal fungi were present in all 3 soils . Most species belong to the genus Glomus with Gl .

三轴剪切试验结果表明，沙棘、沙柳须根的加筋作用使沙土的粘聚力c值提高了2.5~4.0倍，使粘性土的粘聚力c值及内摩擦角φ值均增加0.25~0.40倍。

The triaxial shearing test showed that the cohesion of sand reinforced with the fibre of sand thorn or sand willow was increased by 2.5 ~ 4 times ; the cohesion and the angle of internal friction were increased by 0.25 ~ 0.40 times for the reinforced clay soil .

以车辆行驶的表层沙土为研究对象，用土壤动态三轴仪对车辆行驶的表层沙土的力学特性进行了试验研究，建立了适于车辆行驶的表层沙土的非线性弹性邓肯（Duncan）本构模型。

The mechanical properties of top sand under moving vehicle are studied by soil dynamic triaxial test apparatus . The nonlinear elastic Duncan constitutive model of top sand under vehicle is established .

结果表明，土壤磷素活性高低的顺序为：紧沙土轻沙土沙土，无机磷盐是风沙区植物所能利用的土壤磷素的主要磷形态，且Ca-P所占的比例最大。

The results showed that an order of vivacity of phosphorus increased together with texture , and inorganic-phosphorus available for plants mainly in the sand soil , thereunto Ca-P was major proportion .

黄河古道沙土的裸地土壤含水量在正常降水补给下可达到田间持水量的水平，直到10月时，0～100cm土壤含水量仍为15%。

The moisture in the fallow sandy soil could reach field capacity under the nor - mal precipitation and moisture content was 15 % in 0-100 cm depth in October .

沙土配比试验设为11个处理，即沙/（沙+土）从0～100kg·100kg~（-1），每10kg·100kg~（-1）为一个处理，为大田试验，小区面积1×1m~2；

Sand / soil ratio experiment includes 11 treatments from 0 to 100 kg · 100kg ~ ( - 1 ) sand / ( sand + soil ) .

对两种非水相流体（NAPL）（煤油和四氯乙烯）在3种不同质地的黄土性土壤（沙土、黄绵土和土娄土）中的非饱和入渗特征进行了试验研究。

Using the method of horizontal column infiltration , unsaturated liquid infiltration characteristic of two kinds of NAPL ( kerosene and PCE ) in different texture soil were studied .

CCN多居于自然含磷、钾元素多且保水性能好的油沙土中，以5～30cm的耕作层孢囊量较多。

There were more nematode cysts in soil where the content of phosphorus and potassium were naturally rich and where the water capacity was higher . Most nema-todes inhabited in 5 - 30 cm cultivated horizon .

在SUF的制备过程中加入20%三聚氰胺（占尿素重量比），其沙土结构改良效能提高50%以上；

If 20 % ( in weight to urea ) melamine was added in the preparation of SUF , its effect on improving structure of sandy soil was enhanced by above 50 % .

在降水不足200mm的条件下，结皮的形成改变了土壤水分的传导，有限的降水在沙土层中的时空分布发生了变化，使深根系的灌木逐渐衰退，浅根系的植物得到了发育。

Under the condition of less than 200 mm precipitation , the presence of microbiotic crust changes the soil hydraulic conductivity , alters the temporal and spatial distribution of the limited precipitation in sand layer and leads to the decline of deep_rooted shrubs .

但是，当将种子上层沙土移走，只保留0.5cm沙土覆盖种子，这些种子的萌发率达到原先就位于沙土下0.5cm的种子的萌发率，但是后者的萌发速率较高。

However , when the upper layer of sand was removed leaving deep buried seeds at under just 0 5 cm of sand , their germination reached the same percentages as the seeds located 0.5 cm deep from the beginning of wetting , but at a faster rate .

延津县风沙土及其改良利用

Studies on Amelioration and Utilization of Blown-sand Soil in Yanjin County

风把沙漠的沙吹来，堆积成一片幼沙土。

A fine soil was deposited by winds carrying desert dust .

刚性驱动轮在沙土上滑转下陷量的计算方法

Calculation of Slip Sinkage of a Rigid Driven Wheel on Sand

这条河在沙土中冲出一条水道。

The river had scoured out a passage in the sand .