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231225s2021 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1111/gcb.15864
|2 doi
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|a pubmed24n1100.xml
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|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a He, Liyuan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Mapping soil microbial residence time at the global scale
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|c 2021
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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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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 17.11.2021
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|a Date Revised 17.11.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2021 John Wiley & Sons Ltd.
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|a Soil microbes are the fundamental engine for carbon (C) cycling. Microbial residence time (MRT) therefore determines the mineralization of soil organic C, releasing C as heterotrophic respiration and contributing substantially to the C efflux in terrestrial ecosystems. We took use of a comprehensive dataset (2627 data points) and calculated the MRT based on the basal respiration and microbial biomass C. Large variations in MRT were found among biomes, with the largest MRT in boreal forests and grasslands and smallest in natural wetlands. Biogeographic patterns of MRT were found along climate variables (temperature and precipitation), vegetation variables (root C density and net primary productivity), and edaphic factors (soil texture, pH, topsoil porosity, soil C, and total nitrogen). Among environmental factors, edaphic properties dominate the MRT variations. We further mapped the MRT at the global scale with an empirical model. The simulated and observed MRT were highly consistent at plot- (R2 = .86), site- (R2 = .88), and biome- (R2 = .99) levels. The global average of MRT was estimated to be 38 (±5) days. A clear latitudinal biogeographic pattern was found for MRT with lower values in tropical regions and higher values in the Arctic. The biome- and global-level estimates of MRT serve as valuable data for parameterizing and benchmarking microbial models
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|a Journal Article
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|a biogeography
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| 650 |
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|a map
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| 650 |
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|a microbial residence time
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| 650 |
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|a soil
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| 650 |
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4 |
|a terrestrial ecosystem
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| 650 |
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|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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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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7 |
|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Xu, Xiaofeng
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 27(2021), 24 vom: 01. Dez., Seite 6484-6497
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:27
|g year:2021
|g number:24
|g day:01
|g month:12
|g pages:6484-6497
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.15864
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