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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14557
|2 doi
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|a pubmed24n0973.xml
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|a (DE-627)NLM292184417
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|a (NLM)30589163
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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 Li, Zhaolei
|e verfasserin
|4 aut
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| 245 |
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|a Microbes drive global soil nitrogen mineralization and availability
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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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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 11.04.2019
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|a Date Revised 11.04.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2018 John Wiley & Sons Ltd.
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|a Soil net nitrogen mineralization rate (Nmin ), which is critical for soil nitrogen availability and plant growth, is thought to be primarily controlled by climate and soil physical and/or chemical properties. However, the role of microbes on regulating soil Nmin has not been evaluated on the global scale. By compiling 1565 observational data points of potential net Nmin from 198 published studies across terrestrial ecosystems, we found that Nmin significantly increased with soil microbial biomass, total nitrogen, and mean annual precipitation, but decreased with soil pH. The variation of Nmin was ascribed predominantly to soil microbial biomass on global and biome scales. Mean annual precipitation, soil pH, and total soil nitrogen significantly influenced Nmin through soil microbes. The structural equation models (SEM) showed that soil substrates were the main factors controlling Nmin when microbial biomass was excluded. Microbe became the primary driver when it was included in SEM analysis. SEM with soil microbial biomass improved the Nmin prediction by 19% in comparison with that devoid of soil microbial biomass. The changes in Nmin contributed the most to global soil NH4+ -N variations in contrast to climate and soil properties. This study reveals the complex interactions of climate, soil properties, and microbes on Nmin and highlights the importance of soil microbial biomass in determining Nmin and nitrogen availability across the globe. The findings necessitate accurate representation of microbes in Earth system models to better predict nitrogen cycle under global change
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a croplands
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|a dominant factor
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|a microbial biomass
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|a natural ecosystems
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| 650 |
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|a nitrogen availability
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| 650 |
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|a nitrogen mineralization
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|a soil properties
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| 650 |
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|a Soil
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Tian, Dashuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Bingxue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jinsong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Song
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Han Y H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Xiaofeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Changhui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Nianpeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Niu, Shuli
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 25(2019), 3 vom: 04. März, Seite 1078-1088
|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:3
|g day:04
|g month:03
|g pages:1078-1088
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|u http://dx.doi.org/10.1111/gcb.14557
|3 Volltext
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|d 25
|j 2019
|e 3
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|c 03
|h 1078-1088
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