| 土壤可溶性有机氮及其在氮素供应及转化中的作用 |
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| 引用本文： | 周建斌,陈竹君,郑险峰.土壤可溶性有机氮及其在氮素供应及转化中的作用[J].土壤通报,2005,36(2):244-248. |
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| 作者姓名： | 周建斌 陈竹君 郑险峰 |
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| 作者单位： | 西北农林科技大学,资源环境学院,陕西,杨凌,712100 |
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| 基金项目： | 国家自然科学基金面上项目"可溶性有机氮在农田土壤氮素供应及淋失中的作用(30370288)"及重点项目"西北地区作物优质、高产、高效栽培生理生态研究(30230230)"资助 |
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| 摘 要： | 可溶性有机氮(SON)是指土壤中可以溶于水或盐溶液的有机态氮,在土壤中的行为既不同于矿质氮,也不同于不溶性有机氮。综述了对这一特殊的氮素组分研究进展,包括不同生态系统土壤SON的含量,SON与土壤氮素供应、转化的关系,SON在土壤氮素损失中的作用等,认为SON是土壤氮素中的重要组分之一,今后应开展土壤SON在不同土壤生态系统中氮素循环中作用的研究工作。
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| 关 键 词： | 土壤氮素 可溶性有机氮 氮素转化 氮素损失 |
| 文章编号： | 0564-3945(2005)02-0244-05 |
| 修稿时间： | 2003年11月4日 |
Soluble Organic Nitrogen in Soil and Its Roles in the Sapply and Transformation of N |
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| ZHOU Jian-bin,CHEN Zhu-jun,ZHENG Xian-feng.Soluble Organic Nitrogen in Soil and Its Roles in the Sapply and Transformation of N[J].Chinese Journal of Soil Science,2005,36(2):244-248. |
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| Authors: | ZHOU Jian-bin CHEN Zhu-jun ZHENG Xian-feng |
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| Abstract: | The soluble organic nitrogen in soil (SON) is defined as the orga ni c nitrogen in soil that could be dissolved in water or salt solution. The behavi or of SON in soil is different from that of mineral nitrogen and insoluble organ ic nitrogen. This paper has summarized the advances in studying the roles of SON in soils in recent years, including the contents and changes of SON in differen t ecosystems, the relationship between SON and nitrogen in the supply and transf ormation of nitrogen in soils, the roles of SON in the loss of soil N. SON is co nsidered as an important pool of soil N, and more attentions are advised to dire ct to this form of soil N. |
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| Keywords: | Soil nitrogen Soluble organic nitrogen in soil (SON) N tran sformation N loss |
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