Co–elevation of CO2 and temperature enhances nitrogen mineralization in the rhizosphere of rice
Biology and Fertility of Soils(2022)
摘要
It is unclear how elevated CO2 (eCO2) and warming interactively influence soil N mineralization in the rhizosphere of rice (Oryza sativa L.), given that the N mineralization process in anaerobic paddy soils differs from that of aerobic upland soils. In this study, we conducted a rhizobox experiment in open top chambers and used 15N-13C dual-labeling to examine the impacts of eCO2 (700 ppm) and warming (2 °C above the ambient) on N mineralization and associated microbial processes in the rhizosphere of rice plants under anaerobic conditions. Compared to the control, the combination of eCO2 and warming increased rice N uptake by 50
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关键词
13C-15N dual labeling,Anaerobic microbial functions,N-mineralization gene,Microbial function,Plant N uptake,Elevated CO2 and temperature,Climate change
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