随着水体总悬浮物含量的增加，总悬浮物中有机碳的质量分数呈对数趋势降低。
With the concentration of total suspended substances increasing, the quality partition of organic carbon in total suspended substance decreased in a logarithm tendency.
采用正交实验设计研究了反应温度、升温速率、二乙烯基苯的质量分数、裂解温度和保温时间五个因素对聚碳硅烷产率的影响。
Based on orthogonal design, the effects of reaction temperature, heating speed, weight percent of DVB, pyrolysis temperature and heat retaining time on the yield of PCS were discussed.
通过方差分析和回归性分析表明，不同林地之间有机碳、速效磷和速效钾质量分数差异性显著（P<0.05）且与土层厚度有明显相关性，并随土层深度的增加呈规律性变化。
And there is a significant correlation between the mass content of available P and soil depth (P<0.05) and the mass percentage of available P is verified regularly with the increasing of soil depth.
互花米草的入侵增加了芦苇湿地根际土壤碳质量分数和储量；
The invasion of Spartina alterniflora had increased rhizospheric soil organic carbon contents and storages of the wetland of indigenous Phragmites australis.
互花米草的入侵增加了芦苇湿地根际土壤碳质量分数和储量；
The invasion of Spartina alterniflora had increased rhizospheric soil organic carbon contents and storages of the wetland of indigenous Phragmites australis.
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