土壤溶解性有机质的研究进展 - 矿物岩石地球化学通报.pdf

Bulletin of Mineralogy, Petrology and Geochemistry Vol29 No3, July 2010 1, 2 1 1 1, 2 王美丽 , 李 军 , 朱兆洲 , 郭笑笑 1. , 300387; 2. , 300387 : 溶解性有机质( DOM) 是土壤的重要组成部分, 虽然含量占土壤有机质成分的 例不高, 却是非常活跃的化学物质, 可 影响土壤的形成及肥力, 通过水循环进入水生生态系统参与水体内的各 个过程经微生物作用进入大气圈对全球气候产生巨 大影响, 在土壤乃至全球系统中都发挥着极其重要的作用, 已渐成为土壤学家环境学家和生态学家研究的焦点本文综述 了众多学者的研究成果, 讨论了土壤 DOM 的来源含量组成和分类, 以及影响其含量变化的因素及其环境效应, 指出了研究 中存在的问题和未来发展趋势 : 土壤; 溶解性有机质; 影响因素; 环境效应 + :S1536 21 :A : 1007 2802( 2010) 03 0304 07 Advances in Research on Dissolved Organic Matter in Soils 1, 2 1 1 1, 2 WANG Mei li , LI Jun , ZHU Zhao zhou , GU O Xiao xiao 1. K ey L aboratory of Water Environment and Resource, Tianj in Normal University, Tianj in 300387, China; 2. Urban and E nv ironmental cience Colleg e, T ianj in Normal Univers ity, Tianj in 300387, China Abstract: Dissolved organic matter( DOM) is an important constituent of soils. Although the content accounts for a low proportion of soil organic matter, its a very active chemical substance. DOM can affect soil formation and fer tility, each process of the w ater system in the aquatic ecosystem and the global climate after being decomposed by microbiology, which plays an important role in soil chemical and biological processes, even to global carbon cycle. Now, DOM has been researched broadly by pedologists, environmentalists and ecologists and a lot of scientific a chievements have been obtained. In this paper, the origins, contents, components, classifications of DOM in soils and its affecting factors as well as its environmental effects arereview ed on current research findings by many schol ars. Meanwhi