| 酸沉降对土壤地球化学过程的影响 |
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| 引用本文： | 许第发,钟天祥,徐冬梅,刘广深.酸沉降对土壤地球化学过程的影响[J].地球与环境,2002,30(4):68-74. |
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| 作者姓名： | 许第发 钟天祥 徐冬梅 刘广深 |
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| 作者单位： | 浙江大学环境科学研究所,浙江,杭州,310027 |
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| 摘 要： | 酸沉降通过影响土壤组分的化学行为进而影响土壤地球化学过程。本文就该领域的目前研究进展做了较详细的论述。考察了酸化条件下土壤中盐基离子和铝、硅的释放淋失及硅对铝毒的缓解作用 ;论述了酸沉降通过影响土壤中微量金属及稀土离子沉淀 -溶解、吸附 -解吸、络合 -解离、氧化 -还原平衡进而影响其存在形态和化学行为 ;同时关注了酸沉降对C、N、S、P循环转化直接和间接的影响。
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| 关 键 词： | 酸沉降 土壤组分 化学行为 循环转化 |
| 文章编号： | 1008-0244(2002)04-0068-07 |
| 修稿时间： | 2002年6月21日 |
EFFECTS OF ACID DEPOSITION ON SOIL GEOCHEMICAL CYCLES |
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| Xu Difa,Zhong Tianxiang,Xu Dongmei,Liu Guangshen.EFFECTS OF ACID DEPOSITION ON SOIL GEOCHEMICAL CYCLES[J].Earth and Environment,2002,30(4):68-74. |
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| Authors: | Xu Difa Zhong Tianxiang Xu Dongmei Liu Guangshen |
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| Abstract: | Acid deposition affects soil geochemical cycles by altering the chemical behavior of soil constituents. In this paper the development in this aspect is discussed in detail. The effects of soil acidification on the release and leaching of the base ions Al and Si are discussed as well. The effects on existence and behavior of micrometallic elements and rare-earth elements under soil acidification conditions by affecting the balance of deposition-dissolution, adsorption-desorption, chelation-dissoceation, oxidation-deoxidization are discussed and the effects of acid deposition on the cycles of C, N, S, P are also discussed. |
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| Keywords: | acid deposition soil constituent chemical behavior cycle and transformation |
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