Radiation contributed more than temperature to increased decadal autumn and annual carbon uptake of two eastern North America mature forests
文献类型：期刊论文
| 作者 | Gonsamo, Alemu1; Croft, Holly1; Chen, Jing M.1; Wu, Chaoyang1; Froelich, Norma1; Staebler, Ralf M.1 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2015 |
| 卷号 | 201页码:740-749 |
| 关键词 | Borden forest Carbon uptake phenology Climate change Harvard forest Land surface phenology Photosynthetically active radiation |
| 通讯作者 | Gonsamo, A (reprint author), Univ Toronto, Dept Geog, 100 St George St,Room 5047, Toronto, ON M5S 3G3, Canada. |
| 英文摘要 | The eastern North America mature deciduous forests are increasing their carbon (C) sink, which is believed to be due to a longer growing season. In this study, we investigated the impacts of land surface phenology (LSP) and carbon uptake phenology (CUP) on the net ecosystem productivity (NEP) of the two longest-running flux tower sites in the region. Our results show that there is no trend in the start (SOS), end (EOS), and length of growing season (LOS) at both sites; nor do they explain the interannual and long-term trend in NEP. We found no evidence for a changing growing season and cannot attribute the increasing C sink to growing season length. However, there is strong trend in end (ECU) and length of net positive carbon uptake (LCU) period. ECU is delaying and LCU is getting longer, and they both explain the interannual and long-term trends in NEP. There is increasing trend of photosynthetically active radiation (PAR) at both sites in line with increasing NEP. PAR is contributing the most both to NEP and ECU. CUP is affected more by the increased photosynthetic activity partially due to increased PAR, but not by timing of spring onset and autumn senescence of leaves. There is also significant (p<0.01) reductions in emissions of sulfur oxides (SOx), nitrogen oxides (NOx), total nitrate (HNO3 + NO3) and ozone since 1992. The reductions in gaseous and particulate emissions imply the occurrence of direct aerosol mediated brightening and therefore increased PAR and enhanced C uptake by eastern North America mature forests. (C) 2014 Elsevier B.V. All rights reserved. |
| 研究领域[WOS] | Agronomy ; Forestry ; Meteorology & Atmospheric Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000347863900002 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38483]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Gonsamo, Alemu] Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210093, Jiangsu, Peoples R China 2.[Gonsamo, Alemu 3.Croft, Holly 4.Chen, Jing M.] Univ Toronto, Dept Geog, Toronto, ON M5S 3G3, Canada 5.[Gonsamo, Alemu 6.Croft, Holly 7.Chen, Jing M.] Univ Toronto, Program Planning, Toronto, ON M5S 3G3, Canada 8.[Wu, Chaoyang] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China 9.[Froelich, Norma] No Michigan Univ, Earth Environm & Geog Sci Dept, Marquette, MI 49855 USA 10.[Staebler, Ralf M.] Environm Canada, Air Qual Proc Res Sect, Toronto, ON M3H 5T4, Canada |
| 推荐引用方式 GB/T 7714 | Gonsamo, Alemu,Croft, Holly,Chen, Jing M.,et al. Radiation contributed more than temperature to increased decadal autumn and annual carbon uptake of two eastern North America mature forests[J]. AGRICULTURAL AND FOREST METEOROLOGY,2015,201:740-749. |
| APA | Gonsamo, Alemu,Croft, Holly,Chen, Jing M.,Wu, Chaoyang,Froelich, Norma,&Staebler, Ralf M..(2015).Radiation contributed more than temperature to increased decadal autumn and annual carbon uptake of two eastern North America mature forests.AGRICULTURAL AND FOREST METEOROLOGY,201,740-749. |
| MLA | Gonsamo, Alemu,et al."Radiation contributed more than temperature to increased decadal autumn and annual carbon uptake of two eastern North America mature forests".AGRICULTURAL AND FOREST METEOROLOGY 201(2015):740-749. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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。