soil density的例句大全

in this article are introduced some primary mechanical properties of the normal consolidated soil and over-consolidated soil: drain density, distortion, pore water pressure and static lateral pressure coefficient etc, and comparison is made between them.

介绍了正常固结土和超固结土的排水强度、变形、孔隙水压力和静止侧压力系数等主要力学性质，并对其进行了比较。

it contains six desertification evaluation factors such as the soil moisture, leaf area index, vegetation index, soil texture, occupation ratio of bare sandy and population density. 2.

其中包含了土壤湿度、土壤质地、裸沙占地百分比、叶面积指数、植被指数和人口密度六个荒漠化评价因子。

Including soil water content, bulk density, soil porosity, soil water-stable aggregates structure.

包括土壤的含水量 、 容重 、 土壤孔隙度 、 土壤水稳性团聚体结构.

Factors mainly affecting soil water characteristic curve are soil texture, structure and balk density.

影响水分特征曲线的因素主要是质地 、 结构和容重.

The quantitative relationship between planting density and soil water supply and water consumption is derived consequently.

本文通过对不同密度林地根层土壤水分补给和消耗量的分析,提出确定土壤水分植被承载力的概念模型.

The annual plants dominated the species and soil seed density during sand dune succession process.

土壤种子库物种组成和种子密度均以一年生植物为主.

Controlling livestock grazing density and implementing environmental restoration are important measures for soil andconservation in Iceland.

控制放牧密度和开展环境修复是冰岛最主要的水土保持措施.

Soil seed bank density in sunny slope was 2.2-3.4 times than that in shady slope.

阳坡的土壤种子库密度为阴坡的2.2~3.4倍；

Second, according to the parameters based on the common tri-axial compression and lateral confinement compression test on the undisturbed soil sample, this paper calculate the soil stress between piles and dry density on the use of FORTRAN program, thus make some important conclusions.

其次，采用原状土样进行室内常规三轴试验及侧限压缩试验，确定试验参数，代入前述理论公式，借助FORTRAN语言计算桩间土土体应力及其干密度，得出了一些结论；

There is a lot of rain between June and July, so soil moisture fluctuation frequently. Step into September to the corn harvest period, soil moisture is in smooth gradual cut phase. Planting density has a certain influence on distribution of soil water storage area.

6-7月份降水量集中，土壤含水量波动频繁，进入9月份以后到玉米收获期间，田间土壤含水量变化呈逐渐平稳消减阶段；种植密度对土壤储水区的分布有一定影响。

Ash has much higher fine root biomass density in the soil than larch at stand level ( with the max value of 4442.3 vs. 2234.9 gm-3).

在林分水平上，水曲柳的根生物量密度高于落叶松（分别为4442.3和2234.9g/m3）。

To improve efficiency and veracity of soil sampling in testing bulk density, the cutting ring method and in situ soil tube method were combined and a multi-segment in situ soil sampler was designed.

为了提高土壤容重测定中土样采集的效率和精准性，将环刀法和原状取土管法结合，进行了分段式原状取土器的研制。

Trenching treatments significantly reduced fungivore density and diversity and enhanced nematode channel ratio in both soil layers.

切根处理降低了各土层中食真菌线虫的密度和多样性，导致土壤线虫通路比值上升。

The main results included: 1. Soil properties such as bulk density, water retentiveness and thermal conductivity under NT was higher than that of CT and RT.

免耕耕层土壤容重高，持水性强，导热率高。

The population density of root-knot nematodes in soil is significantly correlated with the damage degree on the host. Therefore, accurately, reliably and rapidly identifying and counting RKN in soil is critically important for the effective control of disease.

土壤中根结线虫的群体密度与作物的受害程度关系密切，因此，准确、可靠和快速地鉴定和计数土壤中的根结线虫，对该病害的有效防治至关重要。

The density of collembolan in the soil of greenhouse was kept in low level during the whole tomato growth, which indicted collembolan was weakly affected by soil disinfections.

该温室土壤弹尾目在番茄整个生长期维持相对稳定的数量水平，受消毒处理波及的影响较小。

According to precipitation-balance principle, we could get reasonable density combined with soil water and evaporation.

结合刺槐林地土壤水分和蒸腾耗水特征,按照降水量平衡原理求得刺槐的合理造林密度.

The results suggest that the types of land use affect the community compositions and ecological distributions of soil insect larvae, and group numbers and individual density of soil insect larvae decreases significantly in the Three-North Forest Shelterbelt and farmland in suburb.

研究结果表明：不同土地利用生境土壤昆虫幼虫群落组成与生态分布存在差异，防护林和农田土壤昆虫幼虫的类群数和个体密度显著减少；

The group numbers and individual density mainly live in the layer of 0~ 5 cm in the soil profile in the other habitats except for farmland, and litter removal does not considerably change the community compositions of the soil insect larvae.

除农田外，其他生境土壤昆虫幼虫群落个体密度和类群数主要集中分布在0～5cm土壤层，生境凋落物的移除对土壤昆虫幼虫群落组成影响不明显；

density of soil organic carbon and the factors controlling its turnover in east china.

我国东部土壤有机碳的密度及转化的控制因素.