%0 Journal Article
%T Transformation characteristics of sulfur forms in acid sulfate soils under different soil water conditions<br>不同土壤水分条件下酸性硫酸盐土硫形态转化特征
%A LIU Zhenqian
%A DUAN Shunshan
%A LI Aifen
%A XU Ning
%A WANG Jianwu
%A LI Minghui
%A <br>刘振乾
%A 段舜山
%A 李爱芬
%J 应用生态学报
%D 2004
%I 
%X Aimed to detect the quantitative impact of soil water condition on the transformation of sulfur forms in acid sulfate soils (ASS), a simulation test was made with 8 treatments. The results indicated that water was an important factor affecting the transformation processes. Wet but not inundated or over dried condition was benefit to the oxidation of pyrite S and the formation of water soluble S (WS-S) and exchangeable S (Ex-S) in ASS. In the three treatments with different inundated and drained off cycles, soil pyrite S content averagely decreased 1.29-3.20 g x kg(-1) during a single drained off period, while soil WS-S and Ex-S contents averagely increased 0.90-1.63 and 0.58-1.47 g x kg(-1), respectively. During inundated period, soil pyrite S content was relatively stable, but soil WS-S and Ex-S contents were decreased significantly due to the dilution of water. It was suggested that the total S (mainly WS-S) of ASS was discharged in drainage process, and the accumulative amount of the discharge and the transformation of the S forms were associated with the length of the inundated and drained off cycles. The dynamics of Jarosite S, organic S and element S in all treatments were also discussed here.
%K Acid sulfate soil
%K Sulfur forms
%K Transformation<br>酸性硫酸盐土
%K 硫形态
%K 转化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=E63293883E9DBC9E&yid=D0E58B75BFD8E51C&vid=23CCDDCD68FFCC2F&iid=9CF7A0430CBB2DFD&sid=0DDE48E4C6ED47B1&eid=3ACD4359575EFDCA&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=19