soil group的例句大全

Profile sampling method, macro-group classification method, and statistical method were used to study the community structure and dynamics of soil insects in ragweeds Ambrosia artemisiifolia and A.

采用分层取样法、大类群分类法和数理统计方法，研究了普通豚草Ambrosia artemisiifolia和三裂叶豚草A。

The nitrate content in the fruits and the soil ( 0-40 cm soil layer) of every fertilizer group had a tendency that moved upward in early and attained maximal value at 6-9 days later, then dropped once more after the same time topdressing.

2追肥后间隔不同天数采收不同施肥处理樱桃番茄果实与土壤（0～40cm土层）中的硝酸盐含量也呈现先上升，在施肥后第6～9天达到最大值，而后又下降的趋势。

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 conditions for electro and magnetic precursor are the tectonic unit, the composition and thickness of Cenozoic group, the soil type near the surface and the lithologic property under Cenozoic group and the depth of the layer with high electric conductivity in the earth crust.

影响地电磁类台站映震能力的主要条件是构造单元、新生界盖层的结构与厚度、表土岩性、基底岩性与壳内高导层顶面埋深等。

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；

Analysis of Bearing Capacity of Soil Layer Group Anchorage by Upper Limit Method

基于上限分析法确定土层群锚承载力分析