| 向海湿地不同植被群落下土壤氮素的分布特征 |
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| 引用本文： | 白军红,丁秋档,高海峰,王庆改,肖蓉.向海湿地不同植被群落下土壤氮素的分布特征[J].地理科学,2009,29(3). |
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| 作者姓名： | 白军红 丁秋档 高海峰 王庆改 肖蓉 |
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| 作者单位： | 1. 北京师范大学环境学院水环境模拟国家重点实验室,北京,100875
2. 环境保护部环境工程评估中心,北京,100012 |
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| 基金项目： | 国家自然科学基金项目(40701003);;国家重点基础研究973计划项目(2006CB403301)资助 |
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| 摘 要： | 对比分析向海湿地8种植被群落下表层和亚表层土壤氮形态和全氮含量差异,研究不同植被群落下土壤氮素分布特征。结果表明,各植被群落下表层和亚表层土壤全氮主要以有机氮的形态存在;沼柳群落下表层土壤全氮含量最高,三棱群落最低;而香蒲群落下亚表层土壤全氮含量最高,碱蓬群落最低;根系分布较深的植物群落下表层和亚表层土壤氮素一般高于根系分布较浅的植物群落;除辣蓼群落下土壤无机氮以硝态氮为主外,其它各群落下土壤无机氮均以铵态氮为主。相关分析表明,土壤全氮和有机氮含量与土壤有机质含量显著正相关,与土壤pH值呈现显著负相关关系。
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| 关 键 词： | 向海湿地 植被群落 土壤氮 分布特征 |
Spatial Distribution of Nitrogen in Marsh Soils with Different Plant Communities in Xianghai Wetland |
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| BAI Jun-hong,DING Qiu-yi,GAO Hai-feng,WANG Qing-gai,XIAO Rong.Spatial Distribution of Nitrogen in Marsh Soils with Different Plant Communities in Xianghai Wetland[J].Scientia Geographica Sinica,2009,29(3). |
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| Authors: | BAI Jun-hong DING Qiu-yi GAO Hai-feng WANG Qing-gai XIAO Rong |
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| Institution: | 1.State Key Laboratory of Water Environment Simulation;School of Environment;Beijing Normal University;Beijing 100875;2.Appraisal Center for Environment and Engineering;Ministry of Environmental Protection;Beijing 100012 |
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| Abstract: | Contents of total nitrogen and nitrogen forms in surface and subsurface soils with eight different plant communities in Xianghai Wetland were measured and analyzed in order to study the spatial distribution characteristics of all nitrogen forms in marsh soils with different plant communities.Results showed that total nitrogen in marsh soils was dominantly composed with organic nitrogen.There were highest contents of total nitrogen in surface soils with Salix rosmarinifolia community,while lowest in the surf... |
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| Keywords: | Xianghai Wetland plant communities soil nitrogen spatial distribution |
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