| 5种不同母质土壤上硝态氮垂直运移特征初步探讨 |
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| 引用本文： | 闫良,茶正早,罗微,华元刚.5种不同母质土壤上硝态氮垂直运移特征初步探讨[J].热带农业科学,2011,31(3):24-29. |
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| 作者姓名： | 闫良 茶正早 罗微 华元刚 |
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| 作者单位： | 中国热带农业科学院橡胶研究所,海南儋州,571737;海南大学农学院,海南儋州,571737 |
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| 基金项目： | 海南省自然科学基金，中国热带农业科学院橡胶研究所基本业务专项基金(No:YWFZX2010-5 |
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| 摘 要： | 利用田间大型土壤溶液渗滤装置,定位抽取不同母质土壤在20、60、100、200 cm处的土壤溶液,并对溶液中硝态氮浓度变化做连续测定,通过土壤溶液中硝态氮浓度随时间的变化,初步探讨不施肥条件下5种不同母质土壤硝态氮垂直向下运移特征。结果表明,不同母质土壤上硝态氮垂直运移的距离不同,在花岗岩、玄武岩发育的土壤上硝态氮有垂直移动到60 cm处的迹象,在片麻岩发育的土壤上硝态氮有垂直移动到100 cm处的迹象,在浅海沉积物、砂页岩发育的土壤上硝态氮有垂直运移到200 cm处的迹象。总体上来看,硝态氮在5种土壤20、60、100 cm处可移动的浓度含量存在差异,其多少顺序可基本概括为：砂页岩、片麻岩发育的土壤〉浅海沉积物、玄武岩发育的土壤〉花岗岩发育的土壤。
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| 关 键 词： | 不同母质 土壤溶液 硝态氮浓度 垂直运移 |
Primary study on the character of the NO3-N about moving plumb in five different parent material soils under natural condition |
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| YAN Liang,CHA Zhengzao,LUO Wei,HUA Yuangang.Primary study on the character of the NO3-N about moving plumb in five different parent material soils under natural condition[J].Chinese Journal of Tropical Agriculture,2011,31(3):24-29. |
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| Authors: | YAN Liang CHA Zhengzao LUO Wei HUA Yuangang |
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| Institution: | YAN Liang1,2) CHA Zhengzao2) LUO Wei2) HUA Yuangang2)(1 College of Agronomy,Hainan,University,Danzhou,Hainan 571737,China,2 Rubber Research Institute,CATAS,China) |
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| Abstract: | With the purpose of discussing the character of the NO3——N about moving plumb in five different parent material soil under the no fertilization condition,using the large percolation equipment of the soil solution,distilling the soil solution with the depth of 20 cm,60 m,100 m,200 cm in the different soil,and taking the concentration change of the NO3——N as progression investigation,primarily explored the character of the NO3——N about moving plumb by the change of the NO3——N follow the date in the soil solution.The result indicates,during the trial,the distance of the NO3——N moving plumb is different in different soil,in the granite soil and the basalt soil,the NO3——N has the signs of moving plumb to the 60cm,in the gneiss soil,the NO3——N has the signs of moving plumb to the 100cm,in the neritic deposits soil and the sandshale soil,the NO3——N has the signs of moving plumb to the 200 cm.The otherwise,the concentration of the NO3——N in the 5 soil with depth of 20 m,60 cm,100 cm,as the whole,the amount can generalize as： the sandshale soil and the gneiss soilthe basalt soil and the neritic deposits soilthe granite soil. |
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| Keywords: | different parent material soil solution the concentration of NO3——N moving plumb |
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