Study on Nitrogen Mineralization and Nitrate Leaching in Fields

WANG Rong-ping; YU Wei-min; HUANG Jian-guo; YUAN Ling; LI Shu-yi

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Study on Nitrogen Mineralization and Nitrate Leaching in Fields

更新时间：2024-11-07

- Study on Nitrogen Mineralization and Nitrate Leaching in Fields
- Vol. 20, Issue 1, Pages: 80-82(2006)
- 作者机构：
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  CLC： S158.2
- Published：2006
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WANG Rong-ping, YU Wei-min, HUANG Jian-guo, et al. Study on Nitrogen Mineralization and Nitrate Leaching in Fields[J]. 2006, 20(1): 80-82.
DOI：

WANG Rong-ping, YU Wei-min, HUANG Jian-guo, et al. Study on Nitrogen Mineralization and Nitrate Leaching in Fields[J]. 2006, 20(1): 80-82. DOI：

摘要

采用SRC（Soil-Resin-Core）装置，研究了重庆市主要土壤类型的氮矿化差异以及与硝态氮淋溶的关系。研究结果表明，微酸性紫色土（菜地）的氮索矿化量、硝态氮淋失量和有效氮的变幅均较大，而其它两种坡耕地变化的氮素矿化景和硝态氮的淋失量变幅均较小。相关分析表明：在微酸性紫色土中，影响硝态氮淋失的主要因素是矿化量，且二者呈显著正相关；而其它两种坡耕地土壤的矿化量与硝态氮淋失量不表现相关性。这就表明不同土壤矿化、硝态氮淋失的情况有差异。

Abstract

With soil-resin-core equipment

the difference of nitrogen mineralization and its correlation with NO3^- - N leaching were studied. Results indicated that large changes in N mineralization

nitrate leaching and available N were found in acid purple soil for vegetable cultivation

while N mineralization and nitrate leaching varied less in the other soil. Statistic analyses indicated that the content of N mineralization significantly influenced the amount of nitrate leaching in the acid purple soil. Significant correlations were observed between N mineralization and NO3^- -N losses while there did not exist correlation in the other two soil. The results indicated that N mineralization and nitrate leaching varied with different soil types.

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