| 山地河岸林土壤对硝态氮和铵态氮的截留及影响因素 |
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| 引用本文： | 樊兰英,郭晋平,张芸香,杜宁宁,张延坤.山地河岸林土壤对硝态氮和铵态氮的截留及影响因素[J].水土保持学报,2011,25(2):134-137. |
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| 作者姓名： | 樊兰英 郭晋平 张芸香 杜宁宁 张延坤 |
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| 作者单位： | 山西农业大学林学院,山西,太谷,030801 |
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| 基金项目： | 国家自然科学基金(30970480); 教育部高等学校博士点基金(200801130002) |
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| 摘 要： | 用人工槽模拟的方法研究文峪河上游三类典型河岸林土壤对硝态氮和铵态氮的截留及影响因素。结果表明,青杨-辽东栎混合林、云杉林和落叶松林河岸带土壤对有效氮的截留量分别为158.38,145.38,142.98 mg/kg。有效氮的截留主要发生在0-10 cm土层。NH+4-N和NO-3-N比例在1.68~1.80之间,土壤截留的有效氮比较稳定。河岸林土壤对有效氮的截留与土壤结构密切相关,与土壤含水量和容重显著负相关。丰富的有机质和全氮促进了有效氮的产生和滞留。土壤酸碱度在截留过程中影响有效氮的截留比,而对有效氮的最终截留量影响较小。
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| 关 键 词： | 河岸林土壤 截留 硝态氮 铵态氮 |
Retention and Influence Factors of NO_3~--N and NH_4~+-N by Riparian Forest Planted on Hill |
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| FAN Lan-ying,GUO Jin-ping,ZHANG Yun-xiang,DU Ning-ning,ZHANG Yan-kun.Retention and Influence Factors of NO_3~--N and NH_4~+-N by Riparian Forest Planted on Hill[J].Journal of Soil and Water Conservation,2011,25(2):134-137. |
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| Authors: | FAN Lan-ying GUO Jin-ping ZHANG Yun-xiang DU Ning-ning ZHANG Yan-kun |
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| Institution: | FAN Lan-ying,GUO Jin-ping,ZHANG Yun-xiang,DU Ning-ning,ZHANG Yan-kun(Forestry College,Shanxi Agriculture University,Taigu,Shanxi 030801) |
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| Abstract: | The retention of nitrate nitrogen(NO-3-N) and ammonia nitrogen(NH+4-N) with simulated tank in three riparian soil of Wenyu river was studied.The results were as follows: The retention of NO-3-N and NH+4-N of Populus cathayana-Quercus liaotungensis,Picea and Larix.principis-rupprechtii were 158.38,145.38,142.98 mg/kg respectively;Retention was mainly occurred in 0-10 cm layer;As the ratio of NH+4-N and NO-3-N was between 1.68~1.80,retention was relatively stable;Soil structure was closely related to retentio... |
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| Keywords: | riparian soil retention NO-3-N NH 4-N |
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