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DOI:	10.1371/journal.pone.0088130
论文题名:	Variability of Carbon and Water Fluxes Following Climate Extremes over a Tropical Forest in Southwestern Amazonia
作者:	Marcelo Zeri; Leonardo D. A. Sá; Antônio O. Manzi; Alessandro C. Araújo; Renata G. Aguiar; Celso von Randow; Gilvan Sampaio; Fernando L. Cardoso; Carlos A. Nobre
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-2-18
卷:	9, 期:2
语种:	英语
英文关键词:	Rain ; Ecosystems ; Seasons ; Forests ; Carbon dioxide ; Drought ; Water resources ; Solar radiation
英文摘要:	The carbon and water cycles for a southwestern Amazonian forest site were investigated using the longest time series of fluxes of CO2 and water vapor ever reported for this site. The period from 2004 to 2010 included two severe droughts (2005 and 2010) and a flooding year (2009). The effects of such climate extremes were detected in annual sums of fluxes as well as in other components of the carbon and water cycles, such as gross primary production and water use efficiency. Gap-filling and flux-partitioning were applied in order to fill gaps due to missing data, and errors analysis made it possible to infer the uncertainty on the carbon balance. Overall, the site was found to have a net carbon uptake of ≈5 t C ha−1 year−1, but the effects of the drought of 2005 were still noticed in 2006, when the climate disturbance caused the site to become a net source of carbon to the atmosphere. Different regions of the Amazon forest might respond differently to climate extremes due to differences in dry season length, annual precipitation, species compositions, albedo and soil type. Longer time series of fluxes measured over several locations are required to better characterize the effects of climate anomalies on the carbon and water balances for the whole Amazon region. Such valuable datasets can also be used to calibrate biogeochemical models and infer on future scenarios of the Amazon forest carbon balance under the influence of climate change.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0088130&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18220
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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作者单位:

Centro de Ciência do Sistema Terrestre, Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, SP, Brazil;Centro Regional da Amazônia, Instituto Nacional de Pesquisas Espaciais, Belém, PA, Brazil;Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Amazonas, Brazil;Embrapa Amazônia Oriental, Belém, Pará, Brazil;Universidade Federal de Rondônia, Porto Velho, Rondônia, Brazil;Centro de Ciência do Sistema Terrestre, Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, SP, Brazil;Centro de Ciência do Sistema Terrestre, Instituto Nacional de Pesquisas Espaciais, Cachoeira Paulista, SP, Brazil;Universidade Federal de Rondônia, Ji-Paraná, Rondônia, Brazil;Secretaria de Políticas e Programas de Pesquisa e Desenvolvimento, Ministério da Ciência, Tecnologia e Inovação, Brasília, DF, Brazil

Recommended Citation:

Marcelo Zeri,Leonardo D. A. Sá,Antônio O. Manzi,et al. Variability of Carbon and Water Fluxes Following Climate Extremes over a Tropical Forest in Southwestern Amazonia[J]. PLOS ONE,2014-01-01,9(2)

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