The comparison results between paddy soil acidity in 1982 and 2008 in the suburbs of Jiaxing City showed that: the acidity of the arable layers of paddy soil changed generally from neutral 1982 to slightly acid; no significant difference in acidity between different soil species; pH value increased after dry land was changed to paddy field but decreased dramatically after paddy field was changed to dry land due to ferrous oxidation in the arable layer of soil.
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李艾芬,范文俊,陆建中,张晓伟.浙江省嘉兴市郊水稻土酸度比较研究[J].土壤,2010,42(4):644-647. LI Ai-fen, FAN Wen-jun, LU Jian-zhong, ZHANG Xiao-wei. Comparasion between paddy soil acidity in suburbs of Jiaxing City, Zhejiang Province[J]. Soils,2010,42(4):644-647