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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14723
|2 doi
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|a pubmed24n0992.xml
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|a (DE-627)NLM297834118
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|a (NLM)31166058
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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 Kellner, Juliane
|e verfasserin
|4 aut
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| 245 |
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|a Response of maize biomass and soil water fluxes on elevated CO2 and drought-From field experiments to process-based simulations
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|c 2019
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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 11.10.2019
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|a Date Revised 11.10.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 John Wiley & Sons Ltd.
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|a The rising concentration of atmospheric carbon dioxide (CO2 ) is known to increase the total aboveground biomass of several C3 crops, whereas C4 crops are reported to be hardly affected when water supply is sufficient. However, a free-air carbon enrichment (FACE) experiment in Braunschweig, Germany, in 2007 and 2008 resulted in a 25% increased biomass of the C4 crop maize under restricted water conditions and elevated CO2 (550 ppm). To project future yields of maize under climate change, an accurate representation of the effects of eCO2 and drought on biomass and soil water conditions is essential. Current crop growth models reveal limitations in simulations of maize biomass under eCO2 and limited water supply. We use the coupled process-based hydrological-plant growth model Catchment Modeling Framework-Plant growth Modeling Framework to overcome this limitation. We apply the coupled model to the maize-based FACE experiment in Braunschweig that provides robust data for the investigation of combined CO2 and drought effects. We approve hypothesis I that CO2 enrichment has a small direct-fertilizing effect with regard to the total aboveground biomass of maize and hypothesis II that CO2 enrichment decreases water stress and leads to higher yields of maize under restricted water conditions. Hypothesis III could partly be approved showing that CO2 enrichment decreases the transpiration of maize, but does not raise soil moisture, while increasing evaporation. We emphasize the importance of plant-specific CO2 response factors derived by use of comprehensive FACE data. By now, only one FACE experiment on maize is accomplished applying different water levels. For the rigorous testing of plant growth models and their applicability in climate change studies, we call for datasets that go beyond single criteria (only yield response) and single effects (only elevated CO2 )
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Zea mays
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|a CO2 response
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|a coupled hydrological-plant growth model
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|a evaporation
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|a free-air carbon dioxide enrichment
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| 650 |
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|a transpiration
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| 650 |
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|a Soil
|2 NLM
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| 650 |
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|a Water
|2 NLM
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| 650 |
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|a 059QF0KO0R
|2 NLM
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| 650 |
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|a Carbon Dioxide
|2 NLM
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| 650 |
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|a 142M471B3J
|2 NLM
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| 700 |
1 |
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|a Houska, Tobias
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Manderscheid, Remy
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Weigel, Hans-Joachim
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Breuer, Lutz
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kraft, Philipp
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 25(2019), 9 vom: 29. Sept., Seite 2947-2957
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:25
|g year:2019
|g number:9
|g day:29
|g month:09
|g pages:2947-2957
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.14723
|3 Volltext
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