| 封闭性和开放性沼泽湿地土壤全磷的季节变化特征 |
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| 引用本文： | 肖蓉,白军红,高海峰,邓伟,崔保山.封闭性和开放性沼泽湿地土壤全磷的季节变化特征[J].草业学报,2010,19(3):88-93. |
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| 作者姓名： | 肖蓉 白军红 高海峰 邓伟 崔保山 |
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| 作者单位： | 1.水环境模拟国家重点实验室 北京师范大学环境学院,北京 100875;2.中国科学院成都山地灾害与环境研究所,四川 成都 610041 |
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| 基金项目： | 国家自然科学基金项目，国家重点基础研究计划项目 |
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| 摘 要： | 以吉林省通榆县付老文泡和二百方子湿地为对象,对比研究了封闭性和开放性湿地土壤全磷含量的季节变化特征及其与土壤理化性状的关系。结果表明:付老文泡湿地0～100cm深度的土壤全磷含量范围为48.77～377.19mg/kg,二百方子为45.65～574.17mg/kg,随季节变化呈现先减后增的变化趋势,即12月-次年5月土壤全磷含量较高,5-7月逐渐下降,在7和8月出现最低值,9和10月含量较低且变化不大,10-12月含量又逐渐回升。土壤全磷主要分布在0～40cm土层,深层含量较低且差异不大;2类湿地土壤全磷含量均未达到生态毒性效应水平。植物地上部分全磷量与土壤全磷之间存在显著的正相关关系,付老文泡湿地植被生长受氮磷协同限制,而二百方子湿地植被主要受氮含量限制。2类湿地土壤全磷与土壤全氮、有机质及粘粒显著正相关,与土壤C/N无显著相关关系;但pH值仅与二百方子湿地土壤全磷显著负相关,与付老文泡湿地土壤全磷无显著相关关系。
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| 关 键 词： | 封闭性湿地 开放性湿地 沼泽土 全磷 季节动态 |
| 收稿时间： | 1900-01-01; |
Seasonal variations of total phosphorus in marsh soils from open and closed wetlands |
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| XIAO Rong,BAI Jun-hong,GAO Hai-feng,DENG Wei,CUI Bao-shan.Seasonal variations of total phosphorus in marsh soils from open and closed wetlands[J].Acta Prataculturae Sinica,2010,19(3):88-93. |
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| Authors: | XIAO Rong BAI Jun-hong GAO Hai-feng DENG Wei CUI Bao-shan |
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| Institution: | 1.State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China |
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| Abstract: | The Fulaowenpao and Erbaifangzi wetlands were chosen as typical sites in which to study characteristics of the seasona1 dynamics of total phosphorus (TP) in marsh soils from closed and open wetlands and to discuss the relationship between TP and other physical and chemical properties.TP content in the 0-100 cm depth of Fulaowenpao wetland soil ranged from 48.77 to 377.19 mg/kg,and in the Erbaifangzi wetland,from 45.65 to 574.17 mg/kg.On a seasonal basis,soil TP content in the two wetlands decreased first an... |
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| Keywords: | closed wetland open wetland marsh soil total phosphorus seasonal variation |
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