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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.12676
|2 doi
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|a eng
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|a Crockatt, Martha E
|e verfasserin
|4 aut
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|a Edge effects on moisture reduce wood decomposition rate in a temperate forest
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 22.10.2015
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|a Date Revised 26.01.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2014 John Wiley & Sons Ltd.
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|a Forests around the world are increasingly fragmented, and edge effects on forest microclimates have the potential to affect ecosystem functions such as carbon and nutrient cycling. Edges tend to be drier and warmer due to the effects of insolation, wind, and evapotranspiration and these gradients can penetrate hundreds of metres into the forest. Litter decomposition is a key component of the carbon cycle, which is largely controlled by saprotrophic fungi that respond to variation in temperature and moisture. However, the impact of forest fragmentation on litter decay is poorly understood. Here, we investigate edge effects on the decay of wood in a temperate forest using an experimental approach, whereby mass loss in wood blocks placed along 100 m transects from the forest edge to core was monitored over 2 years. Decomposition rate increased with distance from the edge, and was correlated with increasing humidity and moisture content of the decaying wood, such that the decay constant at 100 m was nearly twice that at the edge. Mean air temperature decreased slightly with distance from the edge. The variation in decay constant due to edge effects was larger than that expected from any reasonable estimates of climatic variation, based on a published regional model. We modelled the influence of edge effects on the decay constant at the landscape scale using functions for forest area within different distances from edge across the UK. We found that taking edge effects into account would decrease the decay rate by nearly one quarter, compared with estimates that assumed no edge effect
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a CWD
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|a carbon
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|a coarse woody debris
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| 650 |
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|a edge effects
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|a forest fragment
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| 650 |
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|a fragmentation
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|a wood decay
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|a woodland
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|a Bebber, Daniel P
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 21(2015), 2 vom: 18. Feb., Seite 698-707
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
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|g volume:21
|g year:2015
|g number:2
|g day:18
|g month:02
|g pages:698-707
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|u http://dx.doi.org/10.1111/gcb.12676
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