黏粒

研究显示，土壤黏粒含量对土壤养分的保持能力在低pH条件下比在高pH条件下显得更为重要。

Regression analysis found that clay content was more important in the situation of low pH for conservation of soil nutrients .

在水分和PAM的共同作用下，黏粒含量高的土壤的抗风蚀能力要强于黏粒含量低的土壤。

Soil with higher clay content has the higher capability preventing soil from wind erosion than one with less clay content under the together action of PAM and water .

主要研究结论如下：（1）建立了LD法快速测定土壤粒径分布（PSD）转换模型，阐明LD法低估黏粒含量的差异性来源。

Main results of this study were as follows : ( 1 ) The PSD transform model between LD method and pipette method was established . And , the difference source of LD method underestimating the soil silt content was illustrated .

结果表明，由于旅游干扰，城市公园森林土壤的容重增加，而表土的物理性黏粒（＜0.01mm）、有机质和总氮含量降低。

The results show that due to disturbance of tourism in urban parks , the soil density inereases ; and physical clay ( 0.01mm ), organic matter and total nitrogen of topsoil decrease .

在表层0-5cm，秸秆覆盖免耕增强了黏粒吸附有机碳的能力，其吸附能力表现出了秸秆覆盖量的增加而增强的特征，秸秆覆盖免耕还增加了黏粒的库容。

In the surface layer ( 0-5cm ), NTS enhances the clay adsorption ability of organic carbon . The adsorption capacity showed increased with stover mulching quantity increased . NTS also increases the storage capacity of clay .

影响因子对内摩擦角φ的影响大小依次为：不均匀系数Cu>小于0.001mm黏粒含量>天然含水率>干密度>有机质含量>根密度；

The order of the effects of the influence factors on friction angle is coefficient of uniformity Cu > less than 0.001 mm clay content > natural water content > dry density > organic content > root density ;

黏粒质量分数对土壤水分蓄持能力影响的模拟试验

Effects of soil clay content on soil water-holding capacity by simulated experiments

吉林省中部黑土黏粒矿物的组成分析

Analysis on compositions of clay minerals in black soil of central Jilin , China

土壤随着黏粒、有机质含量的增加，土壤反射率将低。

Soil reflectance decreased with increased content of soil clay and soil organic matter .

结果表明，随着草原沙漠化的加剧，（1）土壤颗粒组成发生变化，黏粒含量趋于减少，砂粒增多。

Results showed that the content of clay decreased with increased sandy desertification on grassland .

黏粒和有机质对黄河口潮间带沉积物微团聚体的影响

The influence of clay and organic matter on the sediment aggregation in the Yellow River Estuary

其结果是团聚作用降低而黏粒含量增加，最终导致土壤的可蚀性加大。

The influences made soil aggregation decreased , clay content increased and finally soil erodibility enhanced .

团聚体稳定性、黏粒分散性、流限和塑限互相之间显著相关，说明流限和塑限可以作为反映盐化土壤结构状况的指标。

This illustrated that liquid limit and plastic limit could be used to characterize the structure of salt-affected soils .

黄河三角洲粉质土初始干密度和黏粒含量对稳态强度的影响研究

Influence of initial dry density and clay content on steady state strength of silty soil in Yellow River Delta

结果表明，氟污染使土壤黏粒的稳定性增强，土壤胶体的临界聚沉浓度增大；

The results indicated that fluorine pollution strengthened the stability of soil colloid and increased the critical flocculation concentration .

有机质含量低于1%时，黏粒含量对土壤的吸附能力有着重要影响；

While clay content played an important role in sorption capacity of the soils as SOM content was below 1 % .

一些地区的土样黏粒含量在30%以上，仍具有较强烈的湿陷性。

Though the contents of clay particle in some specimens are more than 30 % , they still have strong collapsibility .

黏粒，尤其是胶粒的胶结作用，对土料的结构稳定性具有重要作用。

The cementation of clay , especially colloidal particle , plays an important role in the structural stability of soil samples .

随着石漠化程度增强土壤表层（0&20mm）黏粒含量减少，砂粒增加。

Within the surface layer ( 0 ~ 20 mm ), the amount of sand decreased , and the amount of clay increased .

采用人工配制不同黏粒含量的淤泥研究黏粒含量对固化淤泥力学性质的影响。

The silts dredged from ocean , lake and river always have different clay contents which lead to different strength of solidified silts .

研究了芘在6种有机质和黏粒含量不同的土壤中吸附和解吸行为。

Sorption / desorption behavior of pyrene in six types of soils with different organic matter and clay contents was investigated in this paper .

较无机颗粒，粉粒、细砂复合体有所增多，粉粒增幅大于细砂，黏粒复合体减少，减小量高产土壤大于对照。

Comparing shows that , silt , fine sand complex decreased rather than inorganic particles , the fine sand size complex and the clay size complex increased .

结果表明，有机质多集中在粉+黏粒中，碳氮比随着粒级的减小而逐渐降低；

The results show that soil organic matter mostly exist in the silt plus clay , and the ratios of carbon to nitrogen become narrow with particle size decreasing .

伊利石在表层有增加的趋势，而蒙脱石向下则有增加的现象，此结果与黏粒的全量分析相一致。

Moreover , illite tends to increase in the surface layer and montmorillonite increases downwards in the content , which is in consistent with the total analysis of the clay .

X-射线衍射结果表明土壤细土和黏粒中赤铁矿含量与风化成土时间呈正比增加。同时，土壤有磁铁矿含量减少、磁赤铁矿增加的趋势。

Also , X-ray diffraction studies indicate that the hematite contents in fine-earth fraction and clay fraction rise with increase in soil-forming age and that magnetite descends while maghemite ascends in content .

砂粒级、粗粉砂级和粉砂级吸附磷后Cu2+解吸率减小，而黏粒级Cu2+解吸率略增加。

Desorption of Cu ~ ( 2 + ) was reduced for sand , silt and coarse silt fractions , and increased a little for clay size when they were previously treated by phosphate .

结果表明：土壤孔隙轮廓线分形特征与土壤质地之间存在着一定的相关关系，即土壤质地越细（黏粒含量越高）分形维数取值越大。

The results showed that the obvious correlativity existed between fractal properties and soil texture . The soil texture was finer ( clay content is higher ), the value of fractal dimension was higher .

随有机质含量的增加，土壤团聚体的稳定性显著增加，黏粒的分散性显著降低，阿特伯格极限显著增加，说明增加有机质含量可以显著改善盐化土壤的结构性能。

With increase in organic matter ( OM ) , aggregate stability and ALS increased and clay dispersion decreased markedly , which showed that addition in organic matter to salt-affected soils can improve structural characteristics .

黏粒含量对黄土结构性的影响不是单一的，黏粒含量过高或过低都难以得到较强的结构性。

Other important findings are that the key influences on loess structure are not uniform across loess regions , and that achievement of higher loess structural integrity is difficult under very high and very low clay content .

通径分析表明，不同土地利用方式下土壤持水性能主要与有机质、>0.25mm水稳性团聚体有关，二者的效应均大于黏粒。

Path analysis shows that soil water holding ( capacity ) under different patterns of land use is mainly correlated with organic matter , and > 0.25 mm water stable aggregates , and their effects are higher than that of clay .