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| 氮沉降对杉木人工林土壤有机碳和全氮的影响 | |
| 引用本文： | 樊后保,袁颖红,王强,李燕燕,黄荣珍. 氮沉降对杉木人工林土壤有机碳和全氮的影响[J]. 福建林学院学报, 2007, 27(1): 1-6 |
| 作者姓名： | 樊后保 袁颖红 王强 李燕燕 黄荣珍 |
| 作者单位： | 1. 南昌工程学院生态与环境科学研究所,江西,南昌,330029;福建农林大学林学院,福建,福州,350002 2. 南昌工程学院生态与环境科学研究所,江西,南昌,330029 3. 福建农林大学林学院,福建,福州,350002 |
| 基金项目： | 国家自然科学基金资助项目（30370259）;教育部留学回国人员科研启动基金资助项目;福建省自然科学基金重点资助项目（B0320001）. |
| 摘 要： | 通过野外模拟试验,研究氮沉降增加对杉木人工林土壤有机碳、全氮及C/N比的影响。试验设计为4种处理,分别为N0(0 kg.hm-2.a-1)、N1(60 kg.hm-2.a-1)、N2(120 kg.hm-2.a-1)、N3(240 kg.hm-2.a-1),每处理重复3次。以尿素[CO(NH2)2]作为氮源,每月以溶液方式对林地进行喷施。通过2 a的处理后发现,随着氮沉降水平的增加,土壤有机碳呈下降趋势,而全氮含量则不断上升,致使土壤C/N比降低。 |
| 关 键 词： | 氮沉降 杉木人工林 土壤 有机碳 全氮 |
| 文章编号： | 1001-389X（2007）01-0001-06 |
| 收稿时间： | 2006-06-18 |
| 修稿时间： | 2006-10-18 |
Effects of nitrogen deposition on soil organic carbon and total nitrogen beneath Chinese fir plantations |
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| FAN Hou-bao,YUAN Ying-hong,WANG Qiang,LI Yan-yan,HUANG Rong-zhen. Effects of nitrogen deposition on soil organic carbon and total nitrogen beneath Chinese fir plantations[J]. Journal of Fujian College of Forestry, 2007, 27(1): 1-6 | |
| Authors: | FAN Hou-bao YUAN Ying-hong WANG Qiang LI Yan-yan HUANG Rong-zhen |
| Abstract: | A field experiment was set to study effects of increased nitrogen deposition on soil organic carbon,total nitrogen,and C/N ratios in the soils of Chinese fir plantations.Treatments were designed as N0(0 kg·hm~(-2)·a~(-1)),N1(60 kg·hm~(-2)·a~(-1)),N2(120 kg·hm~(-2)·a~(-1)) and N3(240 kg·hm~(-2)·a~(-1)),with three replicates in each treatment.Urea was used as the source of nitrogen and its solutions were sprayed on the forest ground each month for two years.The results showed that soil organic carbon decreased,but total nitrogen increased with the increasing nitrogen deposition,leading to decreased C/N ratios. |
| Keywords: | nitrogen deposition Chinese fir plantation soil organic carbon total nitrogen |
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