Effects of wildfire and topography on soil nitrogen availability in a boreal larch forest of northeastern China
文献类型：期刊论文
| 作者 | Yang, Jian2; Kong, Jian-Jian2,3,4; Chu, Haiyan1; Xiang, Xingjia1,3 |
| 刊名 | INTERNATIONAL JOURNAL OF WILDLAND FIRE
 |
| 出版日期 | 2015 |
| 卷号 | 24期号:3页码:433-442 |
| 关键词 | Disturbance Eurasian Boreal Forest Fire Severity Landscape Heterogeneity Nitrogen Mineralisation |
| ISSN号 | 1049-8001 |
| DOI | 10.1071/WF13218 |
| 英文摘要 | Both topography and wildfire can strongly affect soil nitrogen (N) availability. Although many studies have examined the individual effects of fire and topography on N, few have investigated their combined influences and relative importance. In this study, we measured soil extractable inorganic N concentrations, N mineralisation rates, and in situ soil inorganic N supply rates at 36 plots in three topographic positions (north-facing, south-facing and flat valley bottom) of burned and unburned sites in a boreal larch forest of northeastern China. Our data showed that wildfire significantly increased soil N availability, with mean soil extractable inorganic N concentrations, N mineralisation rates and N supply rates being 63, 310 and 270% higher in the burned site 1 year following fire. Additionally, soil N availability in the unburned site was significantly greater on the north-facing slope than on the south-facing slope, though this pattern was reversed at the burned site. Wildfire and topography together explained similar to 50% of the variance in soil N availability, with wildfire explaining three times more than topography. Our results demonstrate that wildfire and topography jointly affected spatial variations of soil N availability, and that wildfire decreased the influence of topography in the early successional stage of this boreal larch ecosystem. |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000354808600014 |
| 出版者 | CSIRO PUBLISHING |
| 源URL | [http://210.72.129.5/handle/321005/122041]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Yang, Jian |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Shenyang Normal Univ, Shenyang 110034, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jian,Kong, Jian-Jian,Chu, Haiyan,et al. Effects of wildfire and topography on soil nitrogen availability in a boreal larch forest of northeastern China[J]. INTERNATIONAL JOURNAL OF WILDLAND FIRE,2015,24(3):433-442. |
| APA | Yang, Jian,Kong, Jian-Jian,Chu, Haiyan,&Xiang, Xingjia.(2015).Effects of wildfire and topography on soil nitrogen availability in a boreal larch forest of northeastern China.INTERNATIONAL JOURNAL OF WILDLAND FIRE,24(3),433-442. |
| MLA | Yang, Jian,et al."Effects of wildfire and topography on soil nitrogen availability in a boreal larch forest of northeastern China".INTERNATIONAL JOURNAL OF WILDLAND FIRE 24.3(2015):433-442. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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