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Widespread decline in greenness of Amazonian vegetation due to the 2010 drought

Widespread decline in greenness of Amazonian vegetation due to the 2010 drought,10.1029/2011GL046824,Geophysical Research Letters,Liang Xu,Arindam Sam

Widespread decline in greenness of Amazonian vegetation due to the 2010 drought   (Citations: 4)
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The 2010 drought affected an area 1.65 times larger than the 2005 droughtVegetation browning in 2010 was four times greater than that in 200551% of drought-stricken forests showed browning in 2010 versus only 14% in 2005
Journal: Geophysical Research Letters - GEOPHYS RES LETT , vol. 38, no. 7, 2011
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    • ...They cause inundations, as in 1999, 2006 and 2009, or very low water stages, as in 1998, 2005 and 2010, which are harmful to people living nearby the watercourse and damaging for agriculture and ecosystems [e.g., Saleska et al., 2007; Phillips et al., 2009; Asner and Alencar, 2010; Lewis et al., 2011; Xu et al., 2011]...
    • ...The 2010 drought has also been dramatic in the northwestern Brazilian Amazon as recently reported by Xu et al. [2011] about the water levels of the Manaus station...

    Jhan Carlo Espinozaet al. Climate variability and extreme drought in the upper Solimões River (w...

    • ...Recently, a key paper published in this journal by Xu et al. [2011] suggested, using MODIS VIs, that vegetation browning in 2010 was four times greater than in 2005 affecting more than 50% of the forested area in the Amazon and, thus, that the increased browning was a response to the 2010 drought...
    • ...In most cases [e.g., Saleska et al., 2007; Xu et al., 2011], researchers reported anomalies for the drought year in question without considering the values for non‐drought years...
    • ...[27] Given the above, the increase in vegetation greenness observed by Saleska et al. [2007] in 2005 and the decline in vegetation greenness observed by Xu et al. [2011] in 2010 cannot be explained by drought...
    • ...[31] Our findings refute claims for the ability of remote sensing VIs to detect the effects of drought on Amazon biomass [Xu et al., 2011] and help to explain the controversy between moisture‐constrained growth [Xu et al., 2011] and sunlight‐enhanced growth [Saleska et al., 2007]...
    • ...[31] Our findings refute claims for the ability of remote sensing VIs to detect the effects of drought on Amazon biomass [Xu et al., 2011] and help to explain the controversy between moisture‐constrained growth [Xu et al., 2011] and sunlight‐enhanced growth [Saleska et al., 2007]...

    P. M. Atkinsonet al. Amazon vegetation greenness as measured by satellite sensors over the ...

    • ...In the Amazon region, the past decade witnessed two extreme droughts,onein2005and amuchmoresevere onein 2010 that coincided with the local dry season [e.g., Marengo et al., 2008, 2011; Lewis et al., 2011; Xu et al., 2011]...
    • ...The drought in 2010, a “once‐in‐a‐century” event, caused substantial reduction of vegetation greenness across the Amazon basin south of the equator that did not recover when the rainy season precipitation returned to normal [Xu et al., 2011]...

    Guiling Wanget al. Vegetation dynamics contributes to the multi-decadal variability of pr...

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