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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14010
|2 doi
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|a pubmed24n0929.xml
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|a (DE-627)NLM278808751
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|a (NLM)29215766
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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 Gao, Decai
|e verfasserin
|4 aut
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| 245 |
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|a Responses of terrestrial nitrogen pools and dynamics to different patterns of freeze-thaw cycle
|b A meta-analysis
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|c 2018
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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 12.12.2018
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|a Date Revised 12.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2017 John Wiley & Sons Ltd.
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|a Altered freeze-thaw cycle (FTC) patterns due to global climate change may affect nitrogen (N) cycling in terrestrial ecosystems. However, the general responses of soil N pools and fluxes to different FTC patterns are still poorly understood. Here, we compiled data of 1519 observations from 63 studies and conducted a meta-analysis of the responses of 17 variables involved in terrestrial N pools and fluxes to FTC. Results showed that under FTC treatment, soil NH4+ , NO3- , NO3- leaching, and N2 O emission significantly increased by 18.5%, 18.3%, 66.9%, and 144.9%, respectively; and soil total N (TN) and microbial biomass N (MBN) significantly decreased by 26.2% and 4.7%, respectively; while net N mineralization or nitrification rates did not change. Temperate and cropland ecosystems with relatively high soil nutrient contents were more responsive to FTC than alpine and arctic tundra ecosystems with rapid microbial acclimation. Therefore, altered FTC patterns (such as increased duration of FTC, temperature of freeze, amplitude of freeze, and frequency of FTC) due to global climate warming would enhance the release of inorganic N and the losses of N via leaching and N2 O emissions. Results of this meta-analysis help better understand the responses of N cycling to FTC and the relationships between FTC patterns and N pools and N fluxes
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|a Journal Article
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|a Meta-Analysis
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|a Research Support, Non-U.S. Gov't
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|a N fluxes
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| 650 |
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4 |
|a N2O
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| 650 |
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|a denitrification
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| 650 |
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4 |
|a freeze-thaw cycle
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| 650 |
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4 |
|a microbial biomass
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| 650 |
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4 |
|a mineralization
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| 650 |
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4 |
|a nitrification
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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 Zhang, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Bo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Zhenzhen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dai, Weiwei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Ping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bai, Edith
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 24(2018), 6 vom: 01. Juni, Seite 2377-2389
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:24
|g year:2018
|g number:6
|g day:01
|g month:06
|g pages:2377-2389
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.14010
|3 Volltext
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