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Greening of the Earth and its drivers
Zhu Z. C.; Piao, S. L.; Myneni, R. B.; Huang, M. T.; Zeng, Z. Z.; Canadell, J. G.; Ciais, P.; Sitch, S.; Friedlingstein, P.; Arneth, A.; Cao, C. X.; Cheng, L.; Kato, E.; Koven, C.; Li, Y.; Lian, X.; Liu, Y. W.; Liu, R. G.; Mao, J. F.; Pan, Y. Z.; Peng, S. S.; Penuelas, J.; Poulter, B.; Pugh, T. A. M.; Stocker, B. D.; Viovy, N.; Wang, X. H.; Wang, Y. P.; Xiao, Z. Q.; Yang, H.; Zaehle, S.; Zeng, N.
出处Nature Climate Change
2016
6
8
791-+
关键词terrestrial carbon-cycle photosynthetic capacity nitrogen deposition forests co2 deforestation productivity temperature models trends
英文摘要Global environmental change is rapidly altering the dynamics of terrestrial vegetation, with consequences for the functioning of the Earth system and provision of ecosystem services(1,2). Yet how global vegetation is responding to the changing environment is not well established. Here we use three long-term satellite leaf area index (LAI) records and ten global ecosystem models to investigate four key drivers of LAI trends during 1982-2009. We show a persistent and widespread increase of growing season integrated LAI (greening) over 25% to 50% of the global vegetated area, whereas less than 4% of the globe shows decreasing LAI (browning). Factorial simulations with multiple global ecosystem models suggest that CO2 fertilization effects explain 70% of the observed greening trend, followed by nitrogen deposition (9%), climate change (8%) and land cover change (LCC) (4%). CO2 fertilization effects explain most of the greening trends in the tropics, whereas climate change resulted in greening of the high latitudes and the Tibetan Plateau. LCC contributed most to the regional greening observed in southeast China and the eastern United States. The regional effects of unexplained factors suggest that the next generation of ecosystem models will need to explore the impacts of forest demography, differences in regional management intensities for cropland and pastures, and other emerging productivity constraints such as phosphorus availability.
收录类别SCI
语种英语
ISSN号1758-678X
DOI标识10.1038/nclimate3004
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被引频次:204[WOS]   [WOS记录]     [WOS相关记录]
文献类型SCI/SSCI论文
条目标识符http://ir.igsnrr.ac.cn/handle/311030/43453
专题历年回溯文献
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Zhu Z. C.,Piao, S. L.,Myneni, R. B.,et al. Greening of the Earth and its drivers. 2016.
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