Impacts of climate variability and extremes on global net primary production in the first decade of the 21st century
文献类型：期刊论文
| 作者 | Pan Shufen; Tian Hanqin; Dangal, Shree R. S.; Ouyang Zhiyun; Lu Chaoqun; Yang Jia; Tao Bo; Ren Wei; Banger, Kamaljit; Yang Qichun |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2015-08 |
| 卷号 | 25期号:9页码:1027-1044 |
| 关键词 | climate variability climate extreme drought global terrestrial ecosystem net primary production (NPP) |
| 英文摘要 | A wide variety of studies have estimated the magnitude of global terrestrial net primary production (NPP), but its variations, both spatially and temporally, still remain uncertain. By using an improved process-based terrestrial ecosystem model (DLEM, Dynamic Land Ecosystem Model), we provide an estimate of global terrestrial NPP induced by multiple environmental factors and examine the response of terrestrial NPP to climate variability at biome and global levels and along latitudes throughout the first decade of the 21st century. The model simulation estimates an average global terrestrial NPP of 54.6 Pg C yr(-1) during 2000-2009, varying from 52.8 Pg C yr(-1) in the dry year of 2002 to 56.4 Pg C yr(-1) in the wet year of 2008. In wet years, a large increase in terrestrial NPP compared to the decadal mean was prevalent in Amazonia, Africa and Australia. In dry years, however, we found a 3.2% reduction in global terrestrial NPP compared to the decadal mean, primarily due to limited moisture supply in tropical regions. At a global level, precipitation explained approximately 63% of the variation in terrestrial NPP, while the rest was attributed to changes in temperature and other environmental factors. Precipitation was the major factor determining inter-annual variation in terrestrial NPP in low-latitude regions. However, in mid- and high-latitude regions, temperature variability largely controlled the magnitude of terrestrial NPP. Our results imply that projected climate warming and increasing climate extreme events would alter the magnitude and spatiotemporal patterns of global terrestrial NPP. |
| 研究领域[WOS] | Geography, Physical |
| WOS记录号 | WOS:000357501300001 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32322]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pan Shufen,Tian Hanqin,Dangal, Shree R. S.,et al. Impacts of climate variability and extremes on global net primary production in the first decade of the 21st century[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2015,25(9):1027-1044. |
| APA | Pan Shufen.,Tian Hanqin.,Dangal, Shree R. S..,Ouyang Zhiyun.,Lu Chaoqun.,...&Zhang Bowen.(2015).Impacts of climate variability and extremes on global net primary production in the first decade of the 21st century.JOURNAL OF GEOGRAPHICAL SCIENCES,25(9),1027-1044. |
| MLA | Pan Shufen,et al."Impacts of climate variability and extremes on global net primary production in the first decade of the 21st century".JOURNAL OF GEOGRAPHICAL SCIENCES 25.9(2015):1027-1044. |
入库方式： OAI收割
来源：生态环境研究中心
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