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- W2373226059 abstract "One borehole profile sample was collected using Eijkelkamp soil sampler from Beijing southeast suburb.The soil samples were collected from surface to 6.0 m underground every 0.5 m.Physical-chemical properties of the samples such as clay content,total amount of clay minerals,cation exchange capacity(CEC) and total organic compounds(TOC) were analyzed.HA/TOC,HA/FA and light absorbance of alkali extractions methods were used to determine the humification degree of soil.Changes of the above 4 indexes along the vertical profile of soil were studied.Results show that,the three indexes of humification have a good correlation at 0.01 level,therefore light absorbance can be used to measure soil degree of humification.What's more,soil humification also has a relationship with clay content,total amount of clay minerals,CEC and TOC,except TOC has a correlation with lg(HA/FA) or HA/TOC at 0.05 level,others are significany at 0.01 level.The soil texture composition,especially for clay content,is an important reason for the changes of humification in the soil profile and has a stronger effect than soil original organic matter and deposition age." @default.
- W2373226059 created "2016-06-24" @default.
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- W2373226059 date "2010-01-01" @default.
- W2373226059 modified "2023-09-29" @default.
- W2373226059 title "Changes of Humification Degree along the Vertical Profile of Soil" @default.
- W2373226059 hasPublicationYear "2010" @default.
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