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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.15845
|2 doi
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|a pubmed24n1097.xml
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|a (DE-627)NLM32934367X
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|a (NLM)34390614
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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 Yang, Guibiao
|e verfasserin
|4 aut
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| 245 |
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|a Phosphorus rather than nitrogen regulates ecosystem carbon dynamics after permafrost thaw
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|c 2021
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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 01.11.2021
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|a Date Revised 01.11.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 John Wiley & Sons Ltd.
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|a Ecosystem carbon (C) dynamics after permafrost thaw depends on more than just climate change since soil nutrient status may also impact ecosystem C balance. It has been advocated that nitrogen (N) release upon permafrost thaw could promote plant growth and thus offset soil C loss. However, compared with the widely accepted C-N interactions, little is known about the potential role of soil phosphorus (P) availability. We combined 3-year field observations along a thaw sequence (constituted by four thaw stages, i.e., non-collapse and 5, 14, and 22 years since collapse) with an in-situ fertilization experiment (included N and P additions at the level of 10 g N m-2 year-1 and 10 g P m-2 year-1 ) to evaluate ecosystem C-nutrient interactions upon permafrost thaw. We found that changes in soil P availability rather than N availability played an important role in regulating gross primary productivity and net ecosystem productivity along the thaw sequence. The fertilization experiment confirmed that P addition had stronger effects on plant growth than N addition in this permafrost ecosystem. These two lines of evidence highlight the crucial role of soil P availability in altering the trajectory of permafrost C cycle under climate warming
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|a Journal Article
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|a carbon cycle
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|a carbon fluxes
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|a carbon-climate feedback
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|a climate warming
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|a nutrient availability
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|a thermokarst
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|a Phosphorus
|2 NLM
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| 650 |
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|a 27YLU75U4W
|2 NLM
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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|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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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Peng, Yunfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Abbott, Benjamin W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Biasi, Christina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wei, Bin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Dianye
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Jianchun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Fei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Guanqin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kou, Dan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Futing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Yuanhe
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 27(2021), 22 vom: 08. Nov., Seite 5818-5830
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
8 |
|g volume:27
|g year:2021
|g number:22
|g day:08
|g month:11
|g pages:5818-5830
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.15845
|3 Volltext
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|d 27
|j 2021
|e 22
|b 08
|c 11
|h 5818-5830
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