| 哈尔滨-绥化地区土壤氮储量及其时空变化特征 |
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| 引用本文： | 张立,崔玉军,刘国栋,李瑛,孙振伟.哈尔滨-绥化地区土壤氮储量及其时空变化特征[J].地质与资源,2014,23(2):188-191. |
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| 作者姓名： | 张立 崔玉军 刘国栋 李瑛 孙振伟 |
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| 作者单位： | 黑龙江省地质调查研究总院, 黑龙江 哈尔滨 150036 |
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| 基金项目： | 中国地质调查局“全国土壤现状调查及污染防治专项”项目(编号GZTR20080103)资助 |
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| 摘 要： | 依据多目标区域地球化学调查成果，按照中国地质调查局下发的《全国土壤碳储量及各类元素（氧化物）储量实测计算暂行要求》，以表层土壤样品分析单元（4 km2）为计算单位，对哈尔滨-绥化地区表层土壤（0~20 cm）氮储量进行计算.研究了不同生态系统和不同土壤类型土壤氮储量、氮密度的差异，研究了20年来土壤氮储量的变化特征及成因.结果表明研究区土壤氮储量略微增加，这主要是由于湿地生态系统和森林生态系统对土壤的固氮效果显著造成的.
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| 关 键 词： | 氮储量 土壤 固氮作用 哈尔滨-绥化 |
| 收稿时间： | 2013-05-27 |
SOIL NITROGEN STORAGE AND ITS VARIATION IN SPACE AND TIME IN HARBIN-SUIHUA AREA |
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| ZHANG Li,CUI Yu-jun,LIU Guo-dong,LI Ying,SUN Zhen-wei.SOIL NITROGEN STORAGE AND ITS VARIATION IN SPACE AND TIME IN HARBIN-SUIHUA AREA[J].Geology and Resources,2014,23(2):188-191. |
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| Authors: | ZHANG Li CUI Yu-jun LIU Guo-dong LI Ying SUN Zhen-wei |
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| Institution: | Heilongjiang Institute of Geological Exploration and Research, Harbin, 150036, China |
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| Abstract: | Based on the multi-objective regional geochemical survey,the nitrogen reserves in surface soil （0-20 cm） in Harbin-Suihua area are calculated,with comparison of soil nitrogen density between different ecosystems and different soil types.The variation characteristics of soil nitrogen storage in the last 20 years are studied.The result shows a slightly increase of soil nitrogen storage during this period,which is caused by the remarkable effects of wetland and forest ecosystem on soil nitrogen fixation. |
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| Keywords: | nitrogen storage soil soil nitrogen fixation Harbin-Suihua area |
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