Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14723 |
Response of maize biomass and soil water fluxes on elevated CO2 and drought-From field experiments to process-based simulations | |
Kellner, Juliane1; Houska, Tobias1; Manderscheid, Remy2; Weigel, Hans-Joachim2; Breuer, Lutz1; Kraft, Philipp1 | |
2019-07-04 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:9页码:2947-2957 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | 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 eCO(2) and drought on biomass and soil water conditions is essential. Current crop growth models reveal limitations in simulations of maize biomass under eCO(2) 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). |
英文关键词 | CO2 response coupled hydrological-plant growth model evaporation free-air carbon dioxide enrichment transpiration Zea mays |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476849200001 |
WOS关键词 | CARBON-DIOXIDE ; CLIMATE-CHANGE ; ENRICHMENT FACE ; USE EFFICIENCY ; PLANT-GROWTH ; AIR ; YIELD ; MODEL ; PHOTOSYNTHESIS ; NITROGEN |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184905 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Justus Liebig Univ Giessen, Inst Landscape Ecol & Resources Management, Res Ctr BioSyst Land Use & Nutr iFZ, Giessen, Germany; 2.Thunen Inst Biodivers, Braunschweig, Germany |
推荐引用方式 GB/T 7714 | Kellner, Juliane,Houska, Tobias,Manderscheid, Remy,et al. Response of maize biomass and soil water fluxes on elevated CO2 and drought-From field experiments to process-based simulations[J]. GLOBAL CHANGE BIOLOGY,2019,25(9):2947-2957. |
APA | Kellner, Juliane,Houska, Tobias,Manderscheid, Remy,Weigel, Hans-Joachim,Breuer, Lutz,&Kraft, Philipp.(2019).Response of maize biomass and soil water fluxes on elevated CO2 and drought-From field experiments to process-based simulations.GLOBAL CHANGE BIOLOGY,25(9),2947-2957. |
MLA | Kellner, Juliane,et al."Response of maize biomass and soil water fluxes on elevated CO2 and drought-From field experiments to process-based simulations".GLOBAL CHANGE BIOLOGY 25.9(2019):2947-2957. |
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