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Sequential Extraction of Aluminum and Iron from Acidic Soils by Chemical Selective Dissolution Methods

作  者:
He Jizheng;Li Xueyuan;A. Violante
单  位:
关键词:
acidic soil;aluminum forms;chemical selective dissolution
摘  要:
Potassium chloride, Na-pyrophosphate, CuCl_2, NH_4-oxalate,dithionite-citrate-bicarbonate (DCB) and Na-citrate solutions wereemployed to extract aluminum (Al) and iron (Fe) sequentially andseparately from 15 acidic soils located at the Mangshan Mountains,Hunan Province, China. Many evidences showed that separatepyrophosphate extracted mainly KCl-extractable Al, organo-Alcomplexes and some inorganic Al compounds, whereas separate CuCl_2extracted KCl-extractable Al and some organo-Al complexes.

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