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学科主题: 生物科学::普通生物学
题名: Velocity of change in vegetation productivity over northern high latitudes
作者: Huang, MT (Huang, Mengtian)1; Piao, SL (Piao, Shilong)1, 2, 3; Janssens, IA (Janssens, Ivan A.)4; Zhu, ZC (Zhu, Zaichun)1; Wang, T (Wang, Tao)2; Wu, DH (Wu, Donghai)1; Ciais, P (Ciais, Philippe)1, 5; Myneni, RB (Myneni, Ranga B.)6; Peaucelle, M (Peaucelle, Marc)5, 7; Peng, SS (Peng, Shushi)1; Yang, H (Yang, Hui)1; Penuelas, J (Penuelas, Josep)7, 8
通讯作者: Piao, SL
关键词: TERRESTRIAL CARBON-CYCLE ; CLIMATE-CHANGE ; NITROGEN DEPOSITION ; CO2 FERTILIZATION ; TIME-SERIES ; TEMPERATURE ; PHENOLOGY ; RESPONSES ; SATELLITE ; EARTH
刊名: NATURE ECOLOGY & EVOLUTION
发表日期: 2017
DOI: 10.1038/s41559-017-0328-y
卷: 1, 期:11, 页:1649-1654
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Ecology; Evolutionary Biology
研究领域[WOS]: Environmental Sciences & Ecology; Evolutionary Biology
英文摘要: Warming is projected to increase the productivity of northern ecosystems. However, knowledge on whether the northward displacement of vegetation productivity isolines matches that of temperature isolines is still limited. Here we compared changes in the spatial patterns of vegetation productivity and temperature using the velocity of change concept, which expresses these two variables in the same unit of displacement per time. We show that across northern regions (>50 degrees N), the average velocity of change in growing-season normalized difference vegetation index (NDVIGS, an indicator of vegetation productivity; 2.8 +/- 1.1 km yr(-1)) is lower than that of growing-season mean temperature (T-GS; 5.4 +/- 1.0 km yr(-1)). In fact, the NDVI (GS)velocity was less than half of the T(GS)velocity in more than half of the study area, indicating that the northward movement of productivity isolines is much slower than that of temperature isolines across the majority of northern regions (about 80% of the area showed faster changes in temperature than productivity isolines). We tentatively attribute this mismatch between the velocities of productivity and temperature to the effects of limited resource availability and vegetation acclimation mechanisms. Analyses of ecosystem model simulations further suggested that limited nitrogen availability is a crucial obstacle for vegetation to track the warming trend.
语种: 英语
WOS记录号: WOS:000417193400017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7948
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Peking Univ, Coll Urban & Environm Sci, Sinofrench Inst Earth Syst Sci, Beijing 100871, Peoples R China.
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China.
3.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Beijing 100085, Peoples R China.
4.Univ Antwerp, Dept Biol, Ctr Excellence GCE Global Change Ecol, Univ Pl 1, B-2610 Antwerp, Belgium.
5.CEA CNRS UVSQ, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France.
6.Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA.
7.CREAF, Barcelona 08193, Catalonia, Spain.
8.UAB, Global Ecol Unit, CSIC, CREAF, Barcelona 08193, Catalonia, Spain.

Recommended Citation:
Huang, MT ,Piao, SL ,Janssens, IA ,et al. Velocity of change in vegetation productivity over northern high latitudes[J]. NATURE ECOLOGY & EVOLUTION,2017,1(11):1649-1654.
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