| 无机氮和氮矿化势在根层土壤剖面的空间变异 |
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| 引用本文： | 王敬国. 无机氮和氮矿化势在根层土壤剖面的空间变异[J]. 中国农业大学学报, 1993, 0(1): 73-76 |
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| 作者姓名： | 王敬国 |
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| 作者单位： | 北京农业大学植物营养系; |
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| 摘 要： | 分析土壤小样本的结果表明,无机氮在根层土壤剖面上是不均匀分布的。这种垂直的空间变异不仅适用于铵态氮,也适用于硝态氮。氮矿化势在根层土壤剖面上的空间变异反映出土壤中有氮素转化的某些热点的存在。
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| 关 键 词： | 无机氮 氮矿化势 土壤根层剖面 空间变异 |
| 收稿时间： | 1992-02-29 |
Spatial Variation of Mineral Nitrogen and Nitrogen Moneralization/Immobilization Potential in Soil Profile of Root Layer |
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| Wang Jingguo (Dept.of Plant Nutrition. Spatial Variation of Mineral Nitrogen and Nitrogen Moneralization/Immobilization Potential in Soil Profile of Root Layer[J]. Journal of China Agricultural University, 1993, 0(1): 73-76 |
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| Authors: | Wang Jingguo (Dept.of Plant Nutrition |
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| Affiliation: | Wang Jingguo (Dept.of Plant Nutrition) |
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| Abstract: | The distribution of mineral nitrogen and nitrogen mineralization/immobilization potential in soil profile of the upper root layer were investigated by taking small soil samples.The investigation showed that neither ammonium nor nitrate did evenly distribute along the profile.The spatial variation of nitrogen mineralization/immobilization potential in the soil profile indicated that there were somehot spotsregarding nitrogen turnover in soil. |
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| Keywords: | Mineral nitrogen nitrogen mineralization/immobilization potential soil profile root layer spatial variation |
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