沟道及沙棘柔性坝的土壤有机质含量在纵向大致呈现由上游到下游缓慢递增的过程。
Soil organic matter content increases gradually from upstream to downstream in the gully with seabuckthorn flexible dams and in the dam body.
翻犁后一年的土壤有机质含量会下降，连续宿根栽培则可以提高或维持有机质含量。
Phloughing resulted in decrease in soil organic matter content in coming year, while successive ratoon cultivation could increase or maintain soil organic matter content.
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.
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.
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.
试验研究了有机肥、生物肥、化学肥料组合施肥技术对大豆产量、经济效益、土壤有机质含量的影响。
Through using organic, biological and chemical combined fertilizer, the influences on soybean yield, economic profit and soil organic matter content were investigated.
研究中对基于土壤质地和土壤有机质的我国土壤awc模型进行了空间分析。
The spatial model of soil AWC in China, based on texture and organic matter, was analyzed.
土壤有机质为森林生态系统生产力构成的重要部分，是森林生态系统生物循环中的重要环节之一。
Soil organic matter is a very important part of forest ecosystem productivity, and is also a very important tache of biological cycling in forest ecosystem.
凋落物分解是森林生态系统养分循环中的重要过程，对土壤有机质的形成和养分释放有重要意义。
Forest litters decomposition was an important process of nutrient cycling in forest ecosystems, and played a central role in soil organic matter formation and nutrients release.
结果表明，该区域土壤有机质、全氮及各形态氮素含量呈现先降后升的趋势。
The result shows that the content of soil organic matter, total nitrogen and different forms nitrogen decreased firstly, then increased by time pasted.
结果表明，土壤有机质、土壤温度和农药浓度对阿维菌素的降解有较大影响，这可能和土壤微生物有关。
The result shows that soil organic matter, soil temperature and pesticide concentration can obviously affect Abamectin degradation, maybe which contributes to microorganism in soil.
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.
土壤有机质是土壤的重要组成部分，土壤有机质的存在直接或间接地影响土壤的物理、化学和生物等许多性质。
Soil organic matters (SOM) are important components in soil, and they would affect the physicochemical, chemical and biological properties of the soil directly or indirectly.
具体表现在增加了土壤有机质含量，有利于土壤容重的改善，同时增加了土壤微生物种群和数量。
It embodied that the content of soil organic matter increased, soil unit weight improved, and the number of soil microorganism increased.
土壤有机质和粘粒含量显著地影响土壤团聚体的“原始稳定性”和“崩解速率”，是影响土壤团聚体抗蚀性的主要内在因素。
The soil organic and clay influence remarkably the soil aggregate "original stability" and "collapse velocity", they are the mostly intrinsic factor to soil aggregate erosion.
红壤低丘果园存在土壤有机质含量剧减的问题。
Seriously degrading land quality and radically decreasing organic matter content are the most significant problems of fruit plantation in red soil hillock.
养分耗竭后，施用足量肥料能逆转土壤有机质耗竭的趋势。
When nutrients have been depleted, addition of adequate fertilizers can reverse the trend of soil organic matter depletion.
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.
土壤有机质和全氮含量也自上而下显著的下降，表现出明显的表层聚集现象。
The soil organic carbon and total nitrogen contents obviously decreased and shown an upper-accumulated pattern.
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.
土壤中的氮素主要以有机氮的形式存在于土壤有机质中， 土壤碳氮比与有机质含量显著相关。
The N in the SOM existed mainly in the form of organic nitrogen, and the soil C:N was significantly correlated with SOM.
田间试验结果表明，影响大豆孢囊线虫病发生程度的主要因素是土壤有机质、茬口、土壤含水量等。
The result of field test shows that the main factors which affect the degree of SCN are organic matter, crops rotation and soil humidity etc.
碳水化合物是土壤有机质的重要组成成分，其含量和特性对土壤性质有很大的影响。
Soil carbohydrates constitute a significant part of the soil organic matter and the quality and quantity of carbohydrates in soils can influence the quality of soil.
建立了符合土壤有机质分解机制的重量损失和碳损失的数学模型。
Mathematical models based on the mineralization mechanism were built for the mass loss and carbon loss.
大幅度提高土壤有机质含量及供钾水平是退化土壤肥力恢复过程中面临的重要问题。
The organic matter and available potassium increased by a big margin will were vital question in the course of the fertility restoration of degenerated soil.
结果表明：用有机物料培肥土壤时，可以提高土壤有机质和重组有机质的含量，改善土壤的农化性质。
The results showed that the contents of organic matters in soil and heavy fraction were markedly increased and the agrochemical properties of Chernozem were improved by applying organic materials.
土壤微生物的数量变化特征与生物结皮的类型、分布以及土壤有机质含量等因子有一定相关性。
The composition, distribution and quantity of soil microorganisms might be influenced by landform, existence of biological soil crust and organic matter contents.
土壤多酚氧化酶与土壤有机质的形成有关，是腐殖化的一种媒介。
There is a relationship on soil polyphenol oxidase betweenforming of soil organic matter and medium of forming humus.
根据中国第一次土壤普查得到的土壤各类型分布面积、采样数据、土壤有机质含量，运用GIS技术，来估算土壤碳库。
This paper adopted the soil distribution area, sampling data and soil organic content from the first soil general survey and applied the technique of GIS to estimate soil carbon reservior in China.
土壤有机质是形成土壤结构的重要因素。
Soil organic matters are an important factor affecting the formation of soil structure.
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