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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/nph.14905
|2 doi
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|a pubmed25n0927.xml
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|e rakwb
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|a eng
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1 |
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|a Dynarski, Katherine A
|e verfasserin
|4 aut
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|a Nutrient limitation of terrestrial free-living nitrogen fixation
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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
|b cr
|2 rdacarrier
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|a Date Completed 02.10.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.
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|a Nitrogen (N) fixation by free-living bacteria is a primary N input pathway in many ecosystems and sustains global plant productivity. Uncertainty exists over the importance of N, phosphorus (P) and molybdenum (Mo) availability in controlling free-living N fixation rates. Here, we investigate the geographic occurrence and variability of nutrient constraints to free-living N fixation in the terrestrial biosphere. We compiled data from studies measuring free-living N fixation in response to N, P and Mo fertilizers. We used meta-analysis to quantitatively determine the extent to which N, P and Mo stimulate or suppress N fixation, and if environmental variables influence the degree of nutrient limitation of N fixation. Across our compiled dataset, free-living N fixation is suppressed by N fertilization and stimulated by Mo fertilization. Additionally, free-living N fixation is stimulated by P additions in tropical forests. These findings suggest that nutrient limitation is an intrinsic property of the biochemical demands of N fixation, constraining free-living N fixation in the terrestrial biosphere. These findings have implications for understanding the causes and consequences of N limitation in coupled nutrient cycles, as well as modeling and forecasting nutrient controls over carbon-climate feedbacks
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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4 |
|a climate
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a molybdenum (Mo)
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| 650 |
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4 |
|a nitrogen (N) fixation
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| 650 |
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4 |
|a nutrient limitation
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| 650 |
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|a phosphorus (P)
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| 650 |
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7 |
|a Fertilizers
|2 NLM
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|a Phosphorus
|2 NLM
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| 650 |
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7 |
|a 27YLU75U4W
|2 NLM
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| 650 |
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|a Molybdenum
|2 NLM
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| 650 |
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7 |
|a 81AH48963U
|2 NLM
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| 650 |
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7 |
|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 Houlton, Benjamin Z
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 217(2018), 3 vom: 01. Feb., Seite 1050-1061
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
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|g volume:217
|g year:2018
|g number:3
|g day:01
|g month:02
|g pages:1050-1061
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|u http://dx.doi.org/10.1111/nph.14905
|3 Volltext
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|h 1050-1061
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