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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14515
|2 doi
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|a pubmed24n0968.xml
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|a (DE-627)NLM290453380
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|a (NLM)30412646
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Wang, Bin
|e verfasserin
|4 aut
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| 245 |
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|a Soil aggregates as biogeochemical reactors and implications for soil-atmosphere exchange of greenhouse gases-A concept
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|c 2019
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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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|a Date Completed 18.03.2019
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|a Date Revised 18.03.2019
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|a published: Print-Electronic
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|a CommentIn: Glob Chang Biol. 2019 Jul;25(7):2205-2208. - PMID 30963666
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|a Citation Status MEDLINE
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|a © 2018 John Wiley & Sons Ltd.
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|a Soil-atmosphere exchange significantly influences the global atmospheric abundances of carbon dioxide (CO2 ), methane (CH4 ), and nitrous oxide (N2 O). These greenhouse gases (GHGs) have been extensively studied at the soil profile level and extrapolated to coarser scales (regional and global). However, finer scale studies of soil aggregation have not received much attention, even though elucidating the GHG activities at the full spectrum of scales rather than just coarse levels is essential for reducing the large uncertainties in the current atmospheric budgets of these gases. Through synthesizing relevant studies, we propose that aggregates, as relatively separate micro-environments embedded in a complex soil matrix, can be viewed as biogeochemical reactors of GHGs. Aggregate reactivity is determined by both aggregate size (which determines the reactor size) and the bulk soil environment including both biotic and abiotic factors (which further influence the reaction conditions). With a systematic, dynamic view of the soil system, implications of aggregate reactors for soil-atmosphere GHG exchange are determined by both an individual reactor's reactivity and dynamics in aggregate size distributions. Emerging evidence supports the contention that aggregate reactors significantly influence soil-atmosphere GHG exchange and may have global implications for carbon and nitrogen cycling. In the context of increasingly frequent and severe disturbances, we advocate more analyses of GHG activities at the aggregate scale. To complement data on aggregate reactors, we suggest developing bottom-up aggregate-based models (ABMs) that apply a trait-based approach and incorporate soil system heterogeneity
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a aggregate reactor
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|a aggregate-based model
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|a greenhouse gas
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| 650 |
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|a individual-based model
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| 650 |
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|a microorganism
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| 650 |
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|a soil heterogeneity
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| 650 |
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|a soil organic matter
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| 650 |
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|a Greenhouse Gases
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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| 700 |
1 |
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|a Brewer, Paul E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shugart, Herman H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lerdau, Manuel T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Allison, Steven D
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 25(2019), 2 vom: 09. Feb., Seite 373-385
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:25
|g year:2019
|g number:2
|g day:09
|g month:02
|g pages:373-385
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|u http://dx.doi.org/10.1111/gcb.14515
|3 Volltext
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|e 2
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|h 373-385
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