该地区土壤有机质含量不高。
土壤有机质含量均有不同程度的下降。
Instead, the content of organic matter dropped to a varying degree in different treatments.
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.
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%.
海拔高度与土壤有机质含量基本上呈现出正相关关系。
Altitude and soil organic matter content showed a positive correlation basically.
纯林改造后，对土壤有机质含量和含水率都有显著提高；
Soil organic matter contents and water content were obviously improved.
家属区人工菜园土壤有机质含量较高，与居民人工施肥有关。
The organic content of soil is higher in the garden in front of inhabitant building because it may be fertilized by the inhabitants.
提高土壤有机质含量、改善贫瘠的土壤环境是各基地当前的首要措施。
The first and most important work was to improve organic matter content and amend arid soil in every vineyard.
盐生植被的归还条件下，土壤有机质含量小于0．5％，甚至近乎贫瘠；
In the condition of revert of the halophyte, the soil organic matter is less than 0. 5 %, the soil is even more poor.
土壤有机质含量在1.5%以下，小麦蛋白质含量随土壤有机质含量增加而增高。
The organic matter content in soil was below 1.5% and the wheat protein content raised with the increase of the organic matter content in soil.
生姜专用腐植酸复混肥提高了土壤有机质含量，土壤全氮、碱解氮和速效磷含量。
Ginger specific humic acid fertilizer increased the soil organic matter content, total nitrogen content, available nitrogen content, available phosphorus content.
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.
土壤有机质含量增加，土壤结构得到改善，弃耕地植被得到恢复，第一生产力提高。
Soil organic matter content was increased, soil structure was improved, the vegetation of discarded field was restored, and the first production was progressed.
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.
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.
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.
结果表明，造纸黑液适量施用能改善土壤物理性状，增加土壤有机质含量和氮、钾含量；
Results show that the proper application of black liquor of papermaking can improve the soil properties and increase the contents of organic materials, N and K in soil.
土壤动物密度及生物量与调落物年归还量、土壤有机质含量、植被盖度等均呈正相关关系；
The density and biomass of soil animal has a positive interrelation to the present content of the fallen, the content of organic substance in soil and vegetation coverage.
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.
有机、无机物料配施和秸秆还田是快速提高南方红壤地区不同母质土壤有机质含量的重要措施。
Suggesting the combined application of organical and chemical fertilizer and straw returning is the most effective measure to in crease soil organic matter.
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.
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.
土壤容重沿坡面向上减小可能主要与土壤有机质含量、粘粒含量、结构状况和松紧度以及孔隙度状况等有关。
Upward along the slope, soil pH value, organic matter content, total porosity and capillary porosity increase, and soil bulk density decreases.
该县土壤有机质含量、全氮含量、速效磷含量分别增加了57%、22%、303%，速效钾含量则降低了6%。
Soil organic matter, total nitrogen and OlsenP were increased by 57%, 22% and 303%, respectively, while NH4OAC-K was decreased by 6%.
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.
结果表明：组装配套栽培措施不仅可以促进树体生长和大幅度提高产量，同时也能提高土壤有机质含量和改善土壤肥力状况。
The results showed that the integrated cultural practices not only raised the tree growth and the nut yield, but also increased the content of organic matter and improved the fertility of soil.
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.
土壤有机质含量、全量养分含量和速效养分含量均在采伐初期2～5年增加，随后又迅速减少，尤其是表层土壤变化更为明显；
The organic matter content as well as the total and available contents of nutrients increased at the first 2~5 years, and then declined rapidly, especially for those in topsoils.
结果表明，长期无肥处理土壤有机质含量、全氮含量最低；长期施用氮肥、氮磷肥、有机肥处理土壤有机质含量、全氮含量居中；
The results showed: The soil organic matter and total nitrogen contents in no fertilizer application treatment was the lowest among all treatments;
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.
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