土壤有效铅与土壤微生物生物量碳及土壤脲酶呈显著负相关。
Correlation analysis indicated that there were significantly negative correlations between soil biomass carbon and urease activity with available lead content in the soil.
茶树根层土壤微生物生物量碳随树龄增长而增加，但与茶树根层土壤可培养微生物总量无显著相关。
Soil microbial biomass carbon in the tea plant root layer increased significantly with the age of tea plants.
施用铜制剂还显著影响了土壤的生物学指标，表现为土壤基础呼吸和代谢熵升高，微生物生物量碳降低。
Moreover, the biological indexes of soil were affected, basal respiration and metabolic quotients were increased, microbial carbon was declined.
研究了红砂土中加入稻草秸秆和猪粪后土壤中微生物生物量碳、水溶性有机碳、溶解性酚等活性有机质组分的动态变化。
Water-soluble organic carbon(WSOC) was as an important component in the transport and supply of carbon(C) to microorganisms and played a major role the cycle of soil organic matter.
各处理土壤微生物生物量碳、氮含量因培养时期不同而异。因此，生产中利用秸秆时应考虑不同施肥处理秸秆养分含量的差异。
Therefore, in agricultural practices, the differences in the nutrient contents of straw due to different fertilization should be considered when the straw was to be added into soil.
研究结果表明，在整个培养过程中，仅加莠去津的土壤中微生物生物量碳、氮、磷的含量均显著降低，与对照相比，分别平均降低了13.5%，10.1%，20.0%。
Results showed that soil microbial biomass C, N, P significantly decreased after addition of atrazine. As composed with control, microbial biomass C, N and P decreased averagely 13.5%, 10.1%, 20.0%.
通过对不同肥力水平黑土、棕壤、黄棕壤、红壤土壤微生物量碳氮的比较，研究和探讨土壤微生物量碳氮与土壤肥力的关系。
To find out the relationship between soil microbial biomass C and N and soil fertility, soil microbial biomass C and N were compared in several types of soil with different fertilization levels.
土壤活性有机碳是指土壤中移动快、稳定性差、易氧化、矿化，并对植物和土壤微生物活性较高的那部分碳，常可用水溶性有机碳、微生物量碳和易氧化碳等来进行表征。
Soil labile organic carbon (LOC) refers to the fractions of organic carbons that are easy to move and to be oxidized and mineralized, and they are quite available to plant and soil microorganisms.
随着免耕年限延长，土壤微生物量碳、氮均呈逐渐降低的趋势，免耕10年以上土壤微生物量碳最低，微生物量氮在免耕7～8年时最低。
The microbial biomass C and N were lowest in no-tillage 10 and 7~8 years, respectively, and then decreased along with the the no-tillage years increasing.
结果表明，在各个土层中，两种林分下的土壤含水量、pH值、有机碳的含量以及微生物生物量磷均无显著差异。
Results showed that there were no significant differences in soil total organic carbon, soil moisture content, pH and soil microbial biomass phosphorus in each soil layer between the two plantations.
结果表明，在各个土层中，两种林分下的土壤含水量、pH值、有机碳的含量以及微生物生物量磷均无显著差异。
Results showed that there were no significant differences in soil total organic carbon, soil moisture content, pH and soil microbial biomass phosphorus in each soil layer between the two plantations.
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