soil particle

A new simulation strategy using the Discrete Element Method ( DEM) based on spherical particle contact mechanics to tillage soil dynamics was proposed.

提出了采用基于颗粒接触力学原理的离散元法对耕作土壤动力学问题进行数值模拟的新思路。

The ZOI decreases with the increase of soil particle size and g-level.

曝气影响范围随土体粒径的增大而减小，随离心加速度增大而减小；

Therefore, the study of particle size effect of~ ( 137) Cs in environmental sample is very significant in theory and practice to study soil erosion, which is also the basis in controlling nuclear pollution and in studying the law of nuclide migration.

所以，研究环境样品~（137）Cs的粒度效应，不仅对土壤侵蚀问题有其十分重要的理论和现实意义，而且对核污染的迁移规律研究及其控制也是重要依据。

Fractal Features of Soil Particle Size Distribution on Water Source Conservation Areas under Different Measures of Ecological Restoration

不同生态修复措施下水库水源涵养区土壤粒径分布的分形特征三峡库区水体中营养盐与浮游生物量分布特征

Soil particle composition, organic matter, pH, agricultural management measures and land use types had a certain influence on the content of soil phosphorus.

土壤颗粒组成、有机质、pH值、农业管理措施和土地利用方式对土壤磷素含量都有一定影响。

Adsorbed pesticide is in equilibrium with that dissolved in the water film around the soil particle.

吸附农药与溶解在土壤颗粒周围水膜中的农药平衡.

The geostatistics were used for analyzing the spatial variability of the soil particle composition in Mengding tea plantation with two sampling scales at Sichuan province.

利用地统计学方法，在两个尺度下对蒙顶山茶园土壤颗粒组成的空间变异性进行了研究。

The surface of the soil particle will have a negative charge.

土粒表面会有负电荷.

The DEM contacting mechanics model of lunar soil was built by triaxtest to adjust the particle micro parameters.

通过离散元模拟三轴试验反复调整颗粒细观参数，建立了月壤离散元接触力学模型；

It is discussed in this paper that landslides mechanism of two kinds of low angle slope-soil particle transfer effect and lubrication effect with sluggish water.

探讨了两类低角度滑坡灾害的形成机理，即质点迁移效应和滞水润滑效应。

The soil-water behavioral characteristics of different initial densities, initial water contents and particle size fractions were analyzed.

通过对试验结果的系统整理，分析了土-水特征曲线随初始干密度、初始含水率及粒组的变化特征。