将有机物质掺入白垩质土壤中将会降低碱性。
Incorporating organic material into chalky soils will reduce the alkalinity.
土壤群落的有机质依赖于植物。
Soil communities are dependent on plants for organic matter.
云南橡胶园土壤存在明显酸化、有机质下降、有效养分降低、缺素和营养失调等问题。
Soil acidization, low organic substance and effective nutrients, nutrition defect and disorder are the major problems in rubber plantations of Yunnan.
土壤有机质中含有少量的磷酸盐，且其比例始终不变。
The organic matter in soil contains a small but fairly uniform proportion of phosphate.
地膜覆盖使土壤有机质分解增快。
Soil organic matter decomposition was increased under mulch.
通过对青海主要土壤类型剖面的有机质、机械组成、阳离子交换量三者之间的关系分析。
The relationship was analysised between organic matter, soil granular composition and cation exchange capacity(CEC) in Qinghai major soil types.
隐伏硫化物矿体在地下水的作用下，在其覆盖层浅部含铁锰氧化物和有机质的土壤中形成盐晕。
Saline Halos are often formed in the soil containing Fe and Mn oxides and organic material by a concealed sulfide ore body under the action of the ground water.
它在大大增加复垦土壤中各种微生物数量的同时，也增加了土壤中的有机质的含量和肥力。
Itimproved the quantity of all kinds of micro-biology in soil as wellas the number of organism material and its richness.
土壤中水分、有机质和氧化铁的含量对其光谱特征有很大影响。
The soil moisture , organic matter and iron oxide have a considerable effect on the red soil spectrum.
土壤中水分、有机质和氧化铁的含量对其光谱特征有很大影响。
The soil moisture, organic matter and iron oxide have a considerable effect on the red soil spectrum.
林分生长与林地土壤中全n、全k以及有机质等养分的含量显著相关。
It also shows that the growth of plantation is greatly affected by the content of soil nutrients specially total n, total K and soil organic matter.
加进去的和残留下来的植物物质则是土壤有机质的主要来源。
A major portion of the soil organic matter is derived from the added and residual vegetative material.
土壤胶体中有机质的存在促进了胶体对酶的吸附。
Adsorption was enhanced by the presence of organic matter in soil colloids.
土壤生物和酶活性在改善土壤结构、养分循环、有机质分解和保持中起重要作用。
Soil organisms as well as enzyme activities perform important functions in soil, including structure improvement, nutrient cycling, and organic matter decomposition and retention.
根据腐殖质与矿物质土壤的结合程度、分解作用中所含的有机物类型以及原有的植被，腐殖质可区分为几个类型。
Humus is classified according to how well it is incorporated into the mineral soil, the types of organisms involved in its decomposition, and the vegetation from which it is derived.
同一土壤剖面的有机质含量随着深度的增加而减少。
In the same profile, organic matter content decreased with the increase of soil depth.
微生物的数量分布与土壤酶活性、有机质含量、土壤养分状况等强弱呈正相关关系。
The quantities distribution of rhizosphere microorganisms were positively correlated with the soil enzymic activities, contents of organic matter and soil nutrients.
土壤腐殖质层可被定义为在草皮与土壤表面之间的一层有机残留物。
Thatch can be described as the layer of organic residue located immediately between the sward and the soil surface.
有机肥与化肥配合施用，土壤有机质呈增加趋势，有利于土壤物理环境的改善。
Mixing application of organic and inorganic fertilizer is favorable to increase amount of soil organic matter and to improve soil physical environment.
该地区土壤有机质含量均很低，平均还不到1％。
This region is short of soil organic matter for the average value is less than 1%.
土壤有机质和养分（氮、磷和钾等）是土壤肥力重要的物质基础。
Soil organic matter and nutrients(e. g. nitrogen, phosphorus and potassium) play important roles in soil fertility.
该地区土壤有机质含量不高。
影响黑荆树皮量主导立地因子有土壤质地、坡位、黑土层厚度、坡形、土壤有机质含量。
The paper points out that the factors which influence the bark quantity are soil quality, the position and the shape of the slope, the depth of humus soil, and the content of organic matter.
其中，土壤有机质和物理性粘粒是重要的指标划分依据。
Organic substance and physical clay of soil are important basis for index division.
基于清徐大田土壤试验研究了土壤的凋萎系数与其土壤物理性粘粒含量、有机质含量以及土壤全盐含量之间的关系。
The relation between the wilting point with the soil physics characters as clay content, organic matter content and the salt content have been studied based on the experiments in field.
在湿地土壤养分中，有机质、全钾对潜在土壤效益的贡献率大，而全氮、全磷的贡献率最低。
Contribution rate of the organic matter and kalium upon latent soil benefit was the biggest, and total phosphorus 'was the least.
对不同质地土壤有机质含量与表层含盐量进行相关分析表明，表层为轻壤时，土壤有机质含量与表层含盐量具有明显的负相关性。
The correlative analysis between organic matter content and salinity of the surface layer showed significant negative correlation in soils with coarse texture; but not as significant in other cases.
土壤颗粒组成、容重、有机质、孔隙率影响土壤持水性能。
Then, the bulk density, porosity, the type of pore, particle constitute and organic carbon in the soil affected the soil moisture diffusivity.
对于有机质含量高的黑土，有机胶结物质是形成土壤团聚体的主要因素。
For black soil with high content of organic matter, organic cementing substance is an important factor in forming soil aggregates.
土壤的质地类型、含盐量、有机质含量等是决定土壤粒径分布分形维数的主要因子。
Texture type, salt content, organic matter content, etc. are the major factors determining the fractal dimension of soil particle-size distribution.
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