| 应用Geoprobe对河北栾城土壤硝态氮含量进行计算 |
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| 引用本文： | 李晓欣,胡春胜,雷玉平,张玉铭.应用Geoprobe对河北栾城土壤硝态氮含量进行计算[J].土壤通报,2006,37(5):906-908. |
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| 作者姓名： | 李晓欣 胡春胜 雷玉平 张玉铭 |
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| 作者单位： | 1. 中科院,生态环境研究中心,北京,100085;中科院,研究生院,北京,100039
2. 中科院,遗传发育所农业资源研究中心,河北,石家庄,050021 |
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| 摘 要： | 利用Geoprobe对土壤剖面取样,分析并计算了0~20.4m土层硝态氮的累积量,研究表明,施肥量的上升和地下水埋深的下降,使得多余的氮肥以硝态氮的形式存储在土壤剖面中,在传统的施肥制度下,0~20.4m剖面总累积的硝态氮量为1769kg hm-2,自地表至下,土壤硝态氮的分布存在三个累积层,分别为0~5.4m,7.2~12m,14.7~18.4m;而且三个层次累积的硝态氮量随深度呈递减的趋势。
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| 关 键 词： | Geoprobe 硝态氮 累积 分布 |
| 文章编号： | 0564-3945(2006)05-0906-03 |
| 修稿时间： | 2005年6月27日 |
Calculation for the Accumulation of Nitratenitrogen in a Luancheng Soil by Geoprobe |
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| LI Xiao-xin,HU Chun-sheng,LEI Yu-ping,ZHANG Yu-ming.Calculation for the Accumulation of Nitratenitrogen in a Luancheng Soil by Geoprobe[J].Chinese Journal of Soil Science,2006,37(5):906-908. |
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| Authors: | LI Xiao-xin HU Chun-sheng LEI Yu-ping ZHANG Yu-ming |
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| Abstract: | In this paper we analyzed the distribution of nitratenitrogen in different soil depth profiles in a field under traditional planting for years,and we also calculated the amount of nitratenitrogen accumulated in the Luancheng soil.The results showed: with the increasing fertilizer N input and soil water table,significant amounts of nitrate were lost from the soil,and there were 1769kg ha~(-1) nitratenitrogen accumulated in the soil from 0 to 20.4 meter depth.In the soil depth profile there were three nitrate accumulation layers: 0-5.4m,7.2-12m,14.7-18.4m,and with the depth increasing the content of nitrate decreased. |
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| Keywords: | Geoprobe |
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