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当前位置: 首页 > 文章 > 酸性硫酸盐土中的硫及其形态演变探讨 生态学杂志 2003,22 (5) 98-101
Position: Home > Articles > Succession of sulfur forms in acid sulfate soils Chinese Journal of Ecology 2003,22 (5) 98-101

酸性硫酸盐土中的硫及其形态演变探讨

作  者：
钟继洪
单  位：
广东省生态环境与土壤研究所
关键词：
酸性硫酸盐土;S形态;演变
摘  要：
研究了酸性硫酸盐土中S及其形态演变。结果表明 ,酸性硫酸盐土S含量高 ,以无机态为主 ;S积累和S形态演变与酸性硫酸盐土形成、发育与利用密切相关。与红树林盐渍沼泽土 (潜在酸性硫酸盐土 )比较 ,酸性硫酸盐水稻土黄钾铁矾S含量较高 ,但FeS2 含量较低。酸性硫酸盐水稻土S形态剖面分布明显 ,其氧化层的黄钾铁矾S含量较高 ,pH值较低 ;其还原层的FeS2 含量较高。防治酸害是酸性硫酸盐土持续利用要解决的关键问题。
译  名：
Succession of sulfur forms in acid sulfate soils
作  者：
ZHONG Jihong ( Guangdong Institute of Eco-Environment and Soil Sciences, Guangzhou 510650, China)
关键词：
acid sulfate soils, sulfur forms, succession.
摘  要：
Based on the systematic analysis results of sulfur in acid sulfate soil(ASS) samples collected from their key distribution regions in Guangdong Province, the characteristics and succession of sulfur forms in ASS in different development processes were investigated. The results showed that the content of total sulfur was very high in ASS in the region, and the sulfur in ASS was mostly in inorganic form. The content of element S and organic S was relatively low. It could be found there was a good relative relationship between accumulation and succession of sulfur forms with development and formation of ASS. In acid sulfate paddy soils, sulfur forms was characterized by higher content in the jarosite([KFe_3(SO_4)_2(OH)_6])and lower content in the pyrite(FeS_2). The total S in surface horizon was much lower compared with potential ASS.More jarosite presented in oxic horizons with lower pH values and more pyrite presented in reduction horizon. For the sustainable utilization of ASS, the acid hazards should be considered as the key problem to be solved.

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