Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/ele.13202 |
Elevated CO2 does not stimulate carbon sink in a semi-arid grassland | |
Song, Jian1,2; Wan, Shiqiang1,2; Piao, Shilong3,4,5; Hui, Dafeng6; Hovenden, Mark J.7; Ciais, Philippe8; Liu, Yongwen9; Liu, Yinzhan1; Zhong, Mingxing1; Zheng, Mengmei1; Ma, Gaigai1; Zhou, Zhenxing1; Ru, Jingyi1 | |
通讯作者 | Wan, Shiqiang |
来源期刊 | ECOLOGY LETTERS |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2019 |
卷号 | 22期号:3页码:458-468 |
英文摘要 | Elevated CO2 is widely accepted to enhance terrestrial carbon sink, especially in arid and semi-arid regions. However, great uncertainties exist for the CO2 fertilisation effects, particularly when its interactions with other global change factors are considered. A four-factor (CO2, temperature, precipitation and nitrogen) experiment revealed that elevated CO2 did not affect either gross ecosystem productivity or ecosystem respiration, and consequently resulted in no changes of net ecosystem productivity in a semi-arid grassland despite whether temperature, precipitation and nitrogen were elevated or not. The observations could be primarily attributable to the offset of ecosystem carbon uptake by enhanced soil carbon release under CO2 enrichment. Our findings indicate that arid and semi-arid ecosystems may not be sensitive to CO2 enrichment as previously expected and highlight the urgent need to incorporate this mechanism into most IPCC carbon-cycle models for convincing projection of terrestrial carbon sink and its feedback to climate change. |
英文关键词 | Carbon cycle climate warming CO2 enrichment forb grass increased precipitation modelling multi-factor experiment nitrogen addition species composition |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA ; Australia ; France |
收录类别 | SCI-E |
WOS记录号 | WOS:000457829800004 |
WOS关键词 | TEMPERATE C3 GRASSLANDS ; WATER-USE EFFICIENCY ; ECOSYSTEM CARBON ; PLANT-GROWTH ; NITROGEN ADDITION ; CLIMATE-CHANGE ; SOIL-NITROGEN ; MOJAVE DESERT ; RESPONSES ; DIOXIDE |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 北京大学 ; 中国科学院青藏高原研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/215288 |
作者单位 | 1.Henan Univ, Sch Life Sci, Int Joint Res Lab Global Change Ecol, Kaifeng 475004, Henan, Peoples R China; 2.Hebei Univ, Coll Life Sci, Baoding 071002, Hebei, Peoples R China; 3.Peking Univ, Coll Urban & Environm Sci, Sinofrench Inst Earth Syst Sci, Beijing 100871, Peoples R China; 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China; 5.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Beijing 100085, Peoples R China; 6.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA; 7.Univ Tasmania, Sch Nat Sci, Biol Sci, Private Bag 55, Hobart, Tas 7001, Australia; 8.UVSQ, CNRS, CEA, Lab Sci Climat & Environm, Gif Sur Yvette, France; 9.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Song, Jian,Wan, Shiqiang,Piao, Shilong,et al. Elevated CO2 does not stimulate carbon sink in a semi-arid grassland[J]. 北京大学, 中国科学院青藏高原研究所,2019,22(3):458-468. |
APA | Song, Jian.,Wan, Shiqiang.,Piao, Shilong.,Hui, Dafeng.,Hovenden, Mark J..,...&Ru, Jingyi.(2019).Elevated CO2 does not stimulate carbon sink in a semi-arid grassland.ECOLOGY LETTERS,22(3),458-468. |
MLA | Song, Jian,et al."Elevated CO2 does not stimulate carbon sink in a semi-arid grassland".ECOLOGY LETTERS 22.3(2019):458-468. |
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