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土壤中低分子量有机酸在物质循环中的作用
引用本文:沈阿林,李学垣.土壤中低分子量有机酸在物质循环中的作用[J].植物营养与肥料学报,1997,3(4):363-371.
作者姓名:沈阿林  李学垣
作者单位:1.河南省农业科学院土壤肥料研究所 郑州;450002;
摘    要:本文为近三十年来有关土壤低分子量有机酸研究的扼要回顾。主要综述了森林和农业土壤中低分子量有机酸的组成特点、数量、来源及影响因素;侧重阐述了其在土壤矿物风化与形成、养分活化与迁移、土壤酸化与铝毒、以及与重金属相互作用等一系列物理和化学的影响机制;并提出了进一步研究需关注的问题。

关 键 词:低分子量有机酸    养分有效化    矿物风化与形成    重金属

THE COMPOSITION CHARACTERISTICS OF LOW-MOLECULAR-WEIGHT ORGANIC ACIDS IN SOIL AND THEIR ROLES ON SOIL MATERIAL CYCLING
Shen Alin Li Xueyuan Wu Shourong.THE COMPOSITION CHARACTERISTICS OF LOW-MOLECULAR-WEIGHT ORGANIC ACIDS IN SOIL AND THEIR ROLES ON SOIL MATERIAL CYCLING[J].Plant Nutrition and Fertilizer Science,1997,3(4):363-371.
Authors:Shen Alin Li Xueyuan Wu Shourong
Institution:1.Soil and Fertilizer Inst. Henan AAS;Zhengzhou 450002; Dep. of Soil and Agr. Chem. Huazhong Agr. Uni. Wuchang 430070; Sci. and Tech. Infor. Inst. Henan AAS;Zhengzhou 450002
Abstract:The recent three decades' developments in the research of low-molecular-weight organic acids (LMWOAs) in soil were generally reviewed. Firstly, the composition characteristics and sources of LMWOAs in soil and their influenc factors were summerized. Secondly, the roles of LMWOAs on soil material cycling, expecially on the weathering and formatiori of minerals, transformation of nutrierits (Fe, P, S), soil alumirium toxicity, interactions with heavy metal in soil and themseleves toxicity to plant growth, were discussed. Finally, some concerning research issues that they should be paid more attention in the future were posed.
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