放牧退化对群落、各能值功能群碳含量影响不明显，但是却使得土壤碳含量降低。
Grazing-induced retrogression had no obvious effect on the carbon content of community and energy PFGs, but it made the content of soil carbon decreased.
同样，美洲平原如果停止放牧，土壤中的碳含量也会大大提高。
The American plains, too, would accumulate carbon in their soil if grazing stopped.
砍伐森林建牧场，以及过度放牧导致土壤中碳含量的净流失等因素都会产生大量的二氧化碳。
Livestock farming also accounts for a lot of carbon dioxide, mostly from forests being cut down for pasture, or when overgrazing and the resulting soil erosion causes a net loss of carbon from soils.
研究者分析了几十项研究已得出的数据，来确定种植新的生物燃料作物如何影响土壤的碳含量。
The researchers analyzed data from dozens of studies to determine how planting new biofuel crops can influence the carbon content of the soil.
她一直在测算残渣的收益、土壤的有机碳含量和温室气体排放量（二氧化碳、甲烷和一氧化二氮）。
She is measuring residue yields, soil organic carbon, and greenhouse gas emissions (carbon dioxide, methane, and nitrous oxide).
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.
研究者发现，在现有农田种植多年生草本植物是涵养土壤，提高碳含量的最佳做法。
Planting perennial grasses on existing agricultural lands had the most beneficial effect on soil carbon, the researchers found.
通过对宁夏固原不同植物过程土壤剖面有机碳含量和含水量的测定和分析。
The contents of organic carbon and water of different plant processes in soil profile of NingXia GuYuan are measured and analyzed.
随着培育年限和有机物料施用量的增加，各土壤重组有机碳含量增加。
The heavy organic carbon content of every soil increased greatly with incubation time prolong and the increasing quantities of organic material.
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.
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.
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.
施用肥料能提高土壤微生物量碳的含量，但NPK处理与N处理差异不大。
Besides, applying fertilizer improved soil microbial biomass c, however, divergence between NPK and Ntreatment is not marked.
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.
相思树种明显地增加了沿海沙地土壤中全氮和全碳的含量，且增加的量以沙地土壤的表层最为显著。
Acacia tree species increased significantly the content of total N and total C and the increment of topsoil of sandy land was significant.
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.
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.
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.
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.
NTS的土壤全碳含量与土层深度显著负相关，各土层间的全碳含量差异不显著。
Soil total organic carbon was negatively correlated with depth of soil, is not significant difference among soil layers in NTS.
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.
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.
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.
研究了川中丘陵区紫色水稻土土壤腐殖质碳的剖面分布及其组成特征，探讨了土壤腐殖质与活性有机碳、土壤全氮含量的关系。
The paper studied the distribution of humus carbon in soils sections and the characteristics of humus carbon fraction of purple paddy in Mid-Sichuan Hilly Region.
本研究分析了子午岭林区农田、草地、灌丛和森林不同生态系统土壤总有机碳、活性有机碳和稳定性有机碳含量。
The study examined the total contents of soil organic carbon and the content of soil active organic carbon and stable organic carbon in farmland, grassland, scrub and forest ecosystems.
方差分析表明，各处理土壤微生物量碳含量之间差异达显著水平。
The ANOVA results indicate that the soil microbial biomass carbon concentration among treatments differs significantly.
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.
采用TOC 5000A总有机碳仪测定了福建主要森林类型土壤溶解有机碳(doc)的含量，分析了土壤溶解有机碳与土壤因子的关系。
The dissolved organic carbon (DOC) of forest soil in Fujian Province was tested with TOC 5000a organic carbon Instrument. The relationship between soil DOC and soil factors were analyzed.
采用TOC 5000A总有机碳仪测定了福建主要森林类型土壤溶解有机碳(doc)的含量，分析了土壤溶解有机碳与土壤因子的关系。
The dissolved organic carbon (DOC) of forest soil in Fujian Province was tested with TOC 5000a organic carbon Instrument. The relationship between soil DOC and soil factors were analyzed.
应用推荐