variety of soil

This paper analyzes the spatial and temporal variety regulation of soil moisture and soil moisture characteristic constants on mobile dune in Horqin sandy land.

选择科尔沁沙地典型流动沙丘作为研究对象，分析了流动沙丘土壤水分的时空变化以及土壤水分特征常数的空间变化规律。

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Soil samples were collected from rotation and continuous resistant variety planting fields in Anda Institute of Utilization and improvement of Saline-alkali soil in 1995.Dynamics change of races of soybean cyst nematode were studied by Golden method.

1995年在安达盐碱土利用改良研究所的轮作和连种抗病品种地块取土样6份，用Golden方法进行大豆孢囊线虫生理小种变化动态监测。

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The species diversities were decided mainly by distributive pattern of precipitation and variety of soil.

影响群落物种多样性的主要环境因子是降水分配格局和土壤异质性。

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Fluorine is the most electronegative metallic element widely distributed in nature, people exposure to fluoride through a variety of sources such as water, soil and air.

氟（fluorine，F）是电负性最强的非金属元素，广泛分布于自然界，人可通过各种来源如水、土壤、空气接触到氟化物。

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Humus was added into nonorganic silt of a variety of additives on the soil performance.

在去除有机质的黏质粉土中加入腐殖酸,研究了经某种液态添加剂改良后的水泥土特性.

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The exploitation of gypsum mine results in the variety of hypo-salting salinization and alkalization, The acid waste water produced in the exploitation of metal deposits directly pollutes the surface water and the ground water and brings the acidation of soil.

膏盐矿开采造成不同程度土壤次生盐渍化（盐化和碱化）。金属矿床酸性废水直接污染地表和地下水体，诱发土壤酸化；

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A variety of physical and mechanical properties of gravelly soil in the high altitude, high stress and seasonal freezing and thawing with ordinary gravel soil showed a greater difference.

这类在高海拔、高地应力和季节性冻融作用下所形成的碎石土的各种物理力学性质与普通碎石土表现出较大差异。

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