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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16298
|2 doi
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|a pubmed24n1009.xml
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|a (DE-627)NLM302723420
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Hu, Zhengkun
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Plant-mediated effects of elevated CO2 and rice cultivars on soil carbon dynamics in a paddy soil
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|c 2020
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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 © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.
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|a Soil organic carbon (SOC) sequestration under elevated CO2 concentration (eCO2 ) is a function of carbon (C) input and C retention. Nitrogen (N) limitation in natural ecosystems can constrain plant responses to eCO2 and their subsequent effects on SOC, but the effect of eCO2 on SOC in N-enriched agroecosystems with cultivars highly responsive to eCO2 is largely unknown. We reported results of SOC dynamics from a field free-air CO2 enrichment experiment with two rice cultivars having distinct photosynthetic capacities under eCO2 . A reciprocal incubation experiment was further conducted to disentangle the effect of changes in litter quality and soil microbial community on litter-derived C dynamics. eCO2 significantly increased total SOC content, dissolved organic C and particulate organic C under the strongly responsive cultivar, likely due to enhanced organic C inputs originated from CO2 stimulation of shoot and root biomass. Increases in the residue C : N ratio and fungal abundance induced by eCO2 under the strongly responsive cultivar reduced C losses from decomposition, possibly through increasing microbial C use efficiency. Our findings suggest that applications of high-yielding cultivars may substantially enhance soil C sequestration in rice paddies under future CO2 scenarios
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a carbon (C) use efficiency
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|a cultivar varieties
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|a global change
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|a microbial community
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| 650 |
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|a plant productivity
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|a rice
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|a soil organic carbon
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|a Soil
|2 NLM
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|a Carbon Dioxide
|2 NLM
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|a Carbon
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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 Chen, Xiaoyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Junneng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhu, Chunwu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhu, Jianguo
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Manqiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 225(2020), 6 vom: 30. März, Seite 2368-2379
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|x 1469-8137
|7 nnns
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| 773 |
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|g volume:225
|g year:2020
|g number:6
|g day:30
|g month:03
|g pages:2368-2379
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|u http://dx.doi.org/10.1111/nph.16298
|3 Volltext
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