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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16854
|2 doi
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|a pubmed24n1044.xml
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|a (NLM)32762047
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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 Hou, Shuang-Li
|e verfasserin
|4 aut
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| 245 |
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|a Increasing rates of long-term nitrogen deposition consistently increased litter decomposition in a semi-arid grassland
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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
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|2 rdacarrier
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|a Date Completed 14.05.2021
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|a Date Revised 14.05.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 The Authors New Phytologist © 2020 New Phytologist Trust.
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|a The continuing nitrogen (N) deposition observed worldwide alters ecosystem nutrient cycling and ecosystem functioning. Litter decomposition is a key process contributing to these changes, but the numerous mechanisms for altered decomposition remain poorly identified. We assessed these different mechanisms with a decomposition experiment using litter from four abundant species (Achnatherum sibiricum, Agropyron cristatum, Leymus chinensis and Stipa grandis) and litter mixtures representing treatment-specific community composition in a semi-arid grassland under long-term simulation of six different rates of N deposition. Decomposition increased consistently with increasing rates of N addition in all litter types. Higher soil manganese (Mn) availability, which apparently was a consequence of N addition-induced lower soil pH, was the most important factor for faster decomposition. Soil C : N ratios were lower with N addition that subsequently led to markedly higher bacterial to fungal ratios, which also stimulated litter decomposition. Several factors contributed jointly to higher rates of litter decomposition in response to N deposition. Shifts in plant species composition and litter quality played a minor role compared to N-driven reductions in soil pH and C : N, which increased soil Mn availability and altered microbial community structure. The soil-driven effect on decomposition reported here may have long-lasting impacts on nutrient cycling, soil organic matter dynamics and ecosystem functioning
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a community level
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|a litter quality
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|a manganese
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|a nitrogen addition
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| 650 |
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|a soil C : N
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| 650 |
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|a soil microbial community structure
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|a soil pH
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|a Soil
|2 NLM
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Hättenschwiler, Stephan
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Jun-Jie
|e verfasserin
|4 aut
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|a Sistla, Seeta
|e verfasserin
|4 aut
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|a Wei, Hai-Wei
|e verfasserin
|4 aut
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|a Zhang, Zhi-Wei
|e verfasserin
|4 aut
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| 700 |
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|a Hu, Yan-Yu
|e verfasserin
|4 aut
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|a Wang, Ru-Zhen
|e verfasserin
|4 aut
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| 700 |
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|a Cui, Shu-Yan
|e verfasserin
|4 aut
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|a Lü, Xiao-Tao
|e verfasserin
|4 aut
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|a Han, Xing-Guo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 229(2021), 1 vom: 19. Jan., Seite 296-307
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:229
|g year:2021
|g number:1
|g day:19
|g month:01
|g pages:296-307
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|u http://dx.doi.org/10.1111/nph.16854
|3 Volltext
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|d 229
|j 2021
|e 1
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|c 01
|h 296-307
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