| 黑土生态系统氮循环研究进展 |
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| 引用本文： | 韩晓盈,王宏燕,于洪艳,李宁.黑土生态系统氮循环研究进展[J].东北农业大学学报,2009,40(2). |
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| 作者姓名： | 韩晓盈 王宏燕 于洪艳 李宁 |
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| 作者单位： | 东北农业大学资源与环境学院,哈尔滨,150030 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 黑土是我国重要的土地资源,近年来黑土肥力日益退化,而黑土肥力的退化必然影响土壤氮循环。文章根据黑土区生态系统氮素输入、转化与输出及其影响因素,分析氮循环模式通过降水、人工施用含氮化肥、作物根及秸杆还田输入黑土生态系统氮素,土壤中氨化作用、硝化作用对黑土生态系统氮素转化,以及反硝化作用、淋失、作物产出等氮素输出阐述黑土区生态系统氮循环特点。
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| 关 键 词： | 黑土生态系统 氮循环 氮淋失 |
Advance of nitrogen recycling in black soil ecosystem in Songnen Plain |
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| HAN Xiaoying,WANG Hongyan,YU Hongyan,LI Ning.Advance of nitrogen recycling in black soil ecosystem in Songnen Plain[J].Journal of Northeast Agricultural University,2009,40(2). |
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| Authors: | HAN Xiaoying WANG Hongyan YU Hongyan LI Ning |
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| Institution: | HAN Xiaoying,WANG Hongyan,YU Hongyan,LI Ning(Resources , Environmental Sciences College,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | Black soil is one of the most important soil resources in China.The fertilities of black soil have been increasingly degradated in recent years,which could affect the soil nitrogen recycling.Based on the status of the ecosystem in black soil,nitrogen recycling pattern was analyzed with the primary analysis on the input,output,transformation and their influencing factors,and characteristics of ecosystem nitrogen recycling in black soil were expatiated on the precipitation,manually employed nitrogen fertilize... |
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| Keywords: | black soil ecosystem nitrogen recycling nitrogen leaching loss |
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