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Characteristics of soil microelements contents in the rhizospheres of different vegetation in
Authors
张超
刘国彬
薛萐
张昌胜
Publication date
1 January 2009
Publisher
Abstract
为了解黄土高原不同植被土壤微量元素的根际效应,分析了该地区柠条、沙棘、沙打旺、柳枝稷、阿尔泰狗娃花和茵陈蒿6种植被根际与非根际土壤中有机碳、全氮、Mn、Cu、Fe、Zn含量.结果表明:6种植被中,柠条、阿尔泰狗娃花和茵陈蒿根际土壤的有机碳、全氮含量高于非根际土壤;除柠条和沙棘外,其余4种植被非根际土壤pH值均显著高于根际土壤.6种植被根际土壤有效Mn含量均低于非根际;柠条、沙打旺和柳枝稷根际有效Cu含量显著高于非根际,表现出强烈根际富集现象.除沙打旺外,其他5种植被根际有效Fe含量均略高于非根际.沙打旺、柳枝稷、茵陈蒿和阿尔泰狗娃花表现出强烈的有效Zn根际富集现象.根际与非根际土壤有机碳、全氮与有效Mn、有效Zn,以及有效Mn与有效Zn呈极显著正相关.根际土壤pH值与有效Mn和有效Zn呈显著负相关.由于不同植物根系的生长特征、根际pH值及微生物种类等的差异,不同植被根际的微量元素含量不同,茵陈蒿根际4种微量元素含量高于其他植被. 更多还原<br /
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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oai:ir.iswc.ac.cn/:361005/5341
Last time updated on 21/09/2018
MPG.PuRe
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oai:pure.mpg.de:item_1518211
Last time updated on 15/06/2019
MPG.PuRe
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oai:escidoc.org:escidoc:151821...
Last time updated on 23/08/2016