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231224s2014 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1111/gcb.12718
|2 doi
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|a pubmed24n0804.xml
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|a (DE-627)NLM241293421
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|a (NLM)25156470
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Davidson, Eric A
|e verfasserin
|4 aut
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| 245 |
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|a A big-microsite framework for soil carbon modeling
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|c 2014
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 22.06.2015
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|a Date Revised 16.11.2017
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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 Soil carbon cycling processes potentially play a large role in biotic feedbacks to climate change, but little agreement exists at present on what the core of numerical soil C cycling models should look like. In contrast, most canopy models of photosynthesis and leaf gas exchange share a common 'Farquhaur-model' core structure. Here, we explore why a similar core model structure for heterotrophic soil respiration remains elusive and how a pathway to that goal might be envisioned. The spatial and temporal variation in soil microsite conditions greatly complicates modeling efforts, but we believe it is possible to develop a tractable number of parameterizable equations that are organized into a coherent, modular, numerical model structure. First, we show parallels in insights gleaned from linking Arrhenius and Michaelis-Menten kinetics for both photosynthesis and soil respiration. Additional equations and layers of complexity are then added to simulate substrate supply. For soils, model modules that simulate carbon stabilization processes will be key to estimating the fraction of soil C that is accessible to enzymes. Potential modules for dynamic photosynthate input, wetting-event inputs, freeze-thaw impacts on substrate diffusion, aggregate turnover, soluble-C sorption, gas transport, methane respiration, and microbial dynamics are described for conceptually and numerically linking our understanding of fast-response processes of soil gas exchange with longer-term dynamics of soil carbon and nitrogen stocks
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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4 |
|a CH4
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| 650 |
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4 |
|a CO2
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| 650 |
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4 |
|a DAMM model
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| 650 |
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4 |
|a carbon cycle
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| 650 |
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4 |
|a methane oxidation
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| 650 |
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4 |
|a soil enzymes
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| 650 |
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4 |
|a soil organic matter
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| 650 |
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4 |
|a soil respiration
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| 650 |
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7 |
|a Soil
|2 NLM
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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7 |
|a 7440-44-0
|2 NLM
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| 700 |
1 |
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|a Savage, Kathleen E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Finzi, Adrien C
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 20(2014), 12 vom: 04. Dez., Seite 3610-20
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:20
|g year:2014
|g number:12
|g day:04
|g month:12
|g pages:3610-20
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.12718
|3 Volltext
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