冻融交替明显增加土壤中水溶性有机质的含量。
It enhances the content of water soluble organic matter greatly.
由于水溶性有机态硒及有机质的存在，准确测定土壤水溶性硒宜经浓缩、消化处理后进行。
As soil water extract contains much water-soluble organic selenium and organic matter, the determination of soil water-soluble selenium should be concentrated and digested beforehand.
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.
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