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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.12223
|2 doi
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|a pubmed25n0755.xml
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|a (NLM)23589484
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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1 |
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|a Smettem, Keith R J
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Satellite-derived estimates of forest leaf area index in southwest Western Australia are not tightly coupled to interannual variations in rainfall
|b implications for groundwater decline in a drying climate
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.08.2013
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|a Date Revised 08.07.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2013 John Wiley & Sons Ltd.
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|a There is increasing concern that widespread forest decline could occur in regions of the world where droughts are predicted to increase in frequency and severity as a result of climate change. The average annual leaf area index (LAI) is an indicator of canopy cover and the difference between the annual maximum and minimum LAI is an indicator of annual leaf turnover. In this study, we analyzed satellite-derived estimates of monthly LAI across forested coastal catchments of southwest Western Australia over a 12 year period (2000-2011) that included the driest year on record for the last 60 years. We observed that over the 12 year study period, the spatial pattern of average annual satellite-derived LAI values was linearly related to mean annual rainfall. However, interannual changes to LAI in response to changes in annual rainfall were far less than expected from the long-term LAI-rainfall trend. This buffered response was investigated using a physiological growth model and attributed to availability of deep soil moisture and/or groundwater storage. The maintenance of high LAIs may be linked to a long-term decline in areal average underground water storage and diminished summer flows, with an emerging trend toward more ephemeral flow regimes
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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4 |
|a baseflow
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a ecohydrology
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| 650 |
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4 |
|a evapotranspiration
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| 650 |
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4 |
|a leaf area index
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| 650 |
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4 |
|a water balance
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| 700 |
1 |
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|a Waring, Richard H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Callow, John N
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wilson, Melissa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mu, Qiaozhen
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 19(2013), 8 vom: 17. Aug., Seite 2401-12
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
8 |
|g volume:19
|g year:2013
|g number:8
|g day:17
|g month:08
|g pages:2401-12
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.12223
|3 Volltext
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