Mean residence time of global topsoil organic carbon depends on temperature, precipitation and soil nitrogen
文献类型：期刊论文
| 作者 | Chen, Shutao; Huang, Yao3 ; Zou, Jianwen2; Shi, Yanshu
|
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2013 |
| 卷号 | 100页码:99-108 |
| 关键词 | mean residence time (MRT) soil organic carbon global temperature precipitation soil nitrogen anomalies |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2012.10.006 |
| 文献子类 | Article |
| 英文摘要 | Mean residence time (MRT) of topsoil organic carbon is one critical parameter for predicting future land carbon sink dynamics. Large uncertainties remain about controls on the variability in global MRT of soil organic carbon. We estimated global MRT of topsoil (0-20 cm) organic carbon in terrestrial ecosystems and found that mean annual air temperature, annual precipitation, and topsoil nitrogen storage were responsible for the variability in MRT. An empirical climate and soil nitrogen-based (Clim&SN) model could be used to explain the temporal and spatial variability in MRT across various ecosystems. Estimated MRT was lowest in the low-latitude zones, and increased toward high-latitude zones. Global MRT of topsoil organic carbon showed a significant declining tendency between 1960 and 2008, particularly in the high-latitude zone of the northern hemisphere. The largest absolute and relative changes (0.2% per yr) in MRT of topsoil organic carbon from 1960 to 2008 occurred in high-latitude regions, consistent with large carbon stocks in, and greater degree of climate change being experienced by, these areas. Overall, global MRT anomalies (differences between MRT in each year and averaged value of MRT from 1960 to 2008) of terrestrial topsoil organic carbon were decreasing from 1960 to 2008. Global MRT anomalies decreased significantly (P<0.001) with the increase of global temperature anomalies, indicating that global warming resulted in faster turnover rates of topsoil organic carbon. (C) 2012 Elsevier B.V. All rights reserved. |
| 学科主题 | Geography, Physical ; Geosciences, Multidisciplinary |
| 出版地 | AMSTERDAM |
| 电子版国际标准刊号 | 1872-6364 |
| WOS关键词 | CO2 EFFLUX ; MATTER DYNAMICS ; LAND-USE ; RESPIRATION ; STORAGE ; DECOMPOSITION ; DEPOSITION ; LONG ; SENSITIVITY ; TURNOVER |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000315557900009 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Ministry of Science and Technology of China(Ministry of Science and Technology, China) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27879]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Shutao,Huang, Yao,Zou, Jianwen,et al. Mean residence time of global topsoil organic carbon depends on temperature, precipitation and soil nitrogen[J]. GLOBAL AND PLANETARY CHANGE,2013,100:99-108. |
| APA | Chen, Shutao,Huang, Yao,Zou, Jianwen,&Shi, Yanshu.(2013).Mean residence time of global topsoil organic carbon depends on temperature, precipitation and soil nitrogen.GLOBAL AND PLANETARY CHANGE,100,99-108. |
| MLA | Chen, Shutao,et al."Mean residence time of global topsoil organic carbon depends on temperature, precipitation and soil nitrogen".GLOBAL AND PLANETARY CHANGE 100(2013):99-108. |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。