细粒物质

研究结果表明：贡嘎山亚高山不同土壤或林型下的土壤，在土壤细粒物质、土壤骨骼颗粒和矿物、土壤有机质转化、土壤微结构等微形态特征上都有一定的特点和差异。

Results showed that micro-morphological features of soils under different forests are different in plasma , skeleton grain , mineral , organic matter transforming , and microstructure .

黄河三角洲细粒物质搬运和沉积动力学研究

Transport and deposition of the fine-grained sediments in the Yellow River Delta

细粒物质含量越多电性变化越小，初始含水量越小导电性增强幅度越大。

The range is smaller when the fine grain content is more and bigger when the initial water content is smaller .

沙生植被的增加会显著增加土壤中细粒物质的含量，但多年生草本对风蚀的减缓作用低于灌木；

More vegetation covers make the soil particle finer in sand land , but the perennial herbage decrease the wind erosion less than shrub .

生物结皮具有明显的养分、盐分和细粒物质的聚集作用，对表层土壤发育有积极的意义。

Biological soil crusts enhanced clay content , accumulated nutrients and salinity in the soil , which are important for the development of the soil .

结果表明：受风沙作用影响，土壤中细粒物质逐渐减少，颗粒组成变粗；

The results show that : ( 1 ) By the influence of wind and sand erosion , the fine silt in upper soil layer gradually decreases .

调查结果表明，由于沙漠化的危害造成土壤结构发生变化，土壤中细粒物质减少，粗大粒级物质增多，形成地表粗化过程。

The investigation results showed that soil structure changed because of endangering of desertification , fine granular matter decreased in soil and coarsely granular matter increased , resulted in coarsening process of the soil surface .

研究表明含水土体被良导性水相多成分污染物污染后导电性将增强，增强幅度和土体中细粒物质含量及初始含水量有关。

Experimental results show that the conductivity of the watery soil increases with the good conduction multi-ingredient pollutant pollution . And the increasing range is relation with the kind of soil and initial water content .

甲壳类动物体内砷、镉和锌的高浓度可能是由于它们的食物主要来源于水中悬浮物质，特别是海床和靠近海床的细粒悬浮物质。

The significantly elevated concentrations of As , Cd , and Zn found in shellfish likely resulted from the fact that their primary source of food is suspended matter , in particular , suspended fine sediment near or on the sea floor .