Effect of Different Pretreatments on Organic Phosphorus Fractions in Lake Sediment

Abstract

Abstract: The three kinds of pretreatments that were the freeze-dried, ground past 100 meshes (pretreatment A), freeze-dried, natural grain size (pretreatment B) and fresh sediment sample (pretreatment C) were chosen to study the effect of different pretreatments on organic phosphorus fractions in lake sediment. The 4 sediment samples that were from the different parts of Taihu Lake were investigated. The results indicated that the results of A over-accounted the contents of different organic phosphorus fractions of the studied sediment samples, and that of C were the lower-accounted, the effect is the largest, especially for the LOP and MLOP that is more bio-available, there is certain influence to the MROP and very small to the HROP. The results of B can reflect the actual condition of lake sediments, especially from the point of phosphorus cycling in lake eco-system; the pretreatment B is the most suitable pretreated method.

CLC Number:

X524

Wang Shengrui, Jin Xiangcan, Liang Haiqing. Effect of Different Pretreatments on Organic Phosphorus Fractions in Lake Sediment[J]. Chinese Agricultural Science Bulletin, 2007, 23(4): 355-355.

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