随着土壤有机碳含量的增加，非线性吸附愈明显。
The non-linear fraction became more significant as the organic matter content of soil increased.
人工林地、草地土壤有机碳含量均随土壤深度增加而减少。
The soil organic carbon contents of plantation lands and grassplots decreased with the increase of soil deepness.
人工林土壤全氮与土壤有机碳含量之间呈显著的线性正相关。
The contents of total nitrogen had a significant positive relationship with the soil organic carbon.
不同健康状况的杉木林土壤有机碳含量和土壤呼吸速率不同。
SOC content and soil respiration rate was affected by forest healthy condition to different degree.
小叶章草甸剖面土壤有机碳含量高于岛状林，但两者差异不大；
The content of organic carbon in the soil profile of Calamagrostis angustifolia meadow was higher than that of island forest, but the difference was small.
土壤有机碳含量随林龄的增长而逐渐增高，有机氮则先减后增。
Soil organic carbon increased with stand age, while nitrogen decreased and then increased.
可以认为土壤含水量和植物生物量是影响土壤有机碳含量的重要因素。
It was figured out that the soil water content and plant biomass were the key factors to affect the soil organic carbon content.
可以认为土壤含水量和植物生物量是影响土壤有机碳含量的重要因素。
Set up mathematics models of soil organic carbon, taking soil carbon content as objective character, and soil water content, soil density, plant biomass and soil depth as effect factors.
研究表明：采样区域内土壤有机碳含量和土壤碳储量分布特点均为北高南低。
The results indicate that:The distributing characteristics of soil organic carbon and storage within the sampling region is that north is higher than south.
同时，土壤有机碳含量的增加表现在施肥措施增加了各个粒径团聚体有机碳的含量。
The increased SOC contents were due to the increase of SOC in various sizes of aggregates under above treatments over CK.
相同温度与土壤水分条件下，CO2排放速率相对值大小随土壤有机碳含量增加而增加。
And under the same temperature and moist condition, the relatively value of CO2 released rate was increasing with the soil organic carbon content.
种植玉米后，土壤有机碳含量增加，说明在供试土壤上，玉米生长促进了土壤碳汇的作用；
The SOC content was increased after maize planting, but decreased in the bare soil, indicating that growing maize enhanced the function of soil as a carbon pool.
近熟林和成熟林时，林分逐渐恢复到较健康、健康状态，土壤有机碳含量和土壤呼吸速率也逐渐增加；
Forest healthy condition recovered gradually from near-mature to mature, and SOC content and soil respiration rate increased gradually.
土地生产力、秸秆还田量和土壤水文状态是导致不同利用方式下耕层土壤有机碳含量差异的主要原因。
It is illustrated that the land productivity, amount of straw returning and soil hydrological condition were main factors determining the differences in the SOC contents at various land-use types.
因烧垦而引起的土地利用变化仍然是碳素释放的主要来源，从而导致了土壤有机碳含量下降和土壤质量退化。
Land use change is still a major source of carbon dynamics emission due to burning and cultivation, which caused to decline soil organic carbon contents in soils and degrade soil quality.
结果表明：在杉木人工林的整个发育过程中，土壤有机碳含量、土壤呼吸速率等性质均表现出明显变化规律。
The results were as follows:The entire developing process of Chinese fir plantations, the significant regular variation of SOC content, soil respiration rate and soil properties were found.
和简单相关或多元回归分析方法相比，通径分析能更加客观和全面地评价土壤性质对土壤有机碳含量和土壤呼吸速率的影响作用。
Compared with correlation analysis and stepwise regression analysis, path analysis can objectively and comprehensively assess the influences of soil properties on SOC content soil respiration rate.
土壤有效态微量元素的含量随着土壤有机碳含量增加而增大，但当土壤有机碳含量过高时，土壤有效态微量元素含量反而呈变小趋势。
The content of the available trace elements increased with that of the soil organic matter increasing, but decreased with much more that of organic matter.
结果表明，秸秆还田提高了作物产量，增加了土壤有机碳积累和土壤氮磷含量，且能活化土壤磷素。
The results showed that straw application increased crop yield, soil organic carbon accumulation, soil total nitrogen and phosphorus content as well as phosphorus activation.
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.
土壤性质通过直接作用和间接作用共同影响着土壤有机碳的含量和分解转化方向，但不同土壤性质的影响机理不同。
SOC content and the direction of decomposition and transformation were affected by direct and indirect effects of soil properties, but their influence mechanism are different.
对毛竹土壤有机碳密度影响最大的为有机碳含量，对土壤有机碳密度的影响次之的为土壤全氮量，土壤有效磷量对其影响程度也较大。
The biggest influence to soil organic carbon density was organic carbon content, the next was total nitrogen, and content of soil available phosphorus was also influenced soil organic carbon density.
结果表明，水稻田土壤有机碳、全氮和全磷含量水平均较高，水田改为旱地后土壤有机碳、全氮含量及C/N比值有较大幅度的下降，但全磷含量变化不大。
The results showed that the content of SOC, STN and STP had a high level in the paddy soil, but SOC and STN(except STP) decreased greatly after being changed to arid land.
结果表明，水稻田土壤有机碳、全氮和全磷含量水平均较高，水田改为旱地后土壤有机碳、全氮含量及C/N比值有较大幅度的下降，但全磷含量变化不大。
The results showed that the content of SOC, STN and STP had a high level in the paddy soil, but SOC and STN(except STP) decreased greatly after being changed to arid land.
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