The interactive effect of temperature and fertilizer types determines the dominant microbes in nitrous oxide emissions and the dicyandiamide efficacy in a vegetable soil  

作　　者：Xiaoya Xu Haiyang Liu Yaowei Liu Didier Lesueur Laetitia Herrmann Hongjie Di Caixian Tang Jianming Xu Yong Li 

机构地区：[1]Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment,College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,China [2]College of Geography and Environment,Shandong Normal University,Jinan 250014,China [3]Centre de Coopération Internationale en Recherche Agronomique pour le Développement(CIRAD),UMR Eco&Sols,Hanoi,Vietnam [4]Eco&Sols,Universitéde Montpellier(UMR),CIRAD,Institut National de Recherche pour l’Agriculture,l’Alimentation et l’Environnement(INRAE),Institut de Recherche pour le Développement(IRD),Montpellier SupAgro,34060 Montpellier,France [5]Alliance of Biodiversity International and International Center for Tropical Agriculture(CIAT),Asia hub,Common Microbial Biotechnology Platform(CMBP),Hanoi,Vietnam [6]School of Life and Environmental Sciences,Faculty of Science,Engineering and Built Environment–Deakin University,Melbourne,VIC 3125,Australia [7]Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou 571737,China [8]La Trobe Institute for Sustainable Agriculture and Food,Department of Animal,Plant&Soil Sciences,La Trobe University,Bundoora,Vic 3086,Australia

出　　处：《Soil Ecology Letters》2024年第3期121-133,共13页土壤生态学快报（英文）

基　　金：funded by the National Key Research and Development Program of China(2022YFD1900602);Provincial Key Research and Development Program of Zhejiang(2022C02046);Zhejiang Provincial Natural Science Foundation of China(LR23D010002);the National Natural Science Foundation of China(42107316);the Natural Science Foundation of Shandong Province(ZR202102260221).

摘　　要：Heat waves associated with global warming and extreme climates would arouse serious consequences on nitrogen(N)cycle.However,the responses of the functional guilds to different temperatures,especially high temperature and the cascading effect on N_(2)O emissions remain unclear.An incubation study was conducted to examine the effect of different temperatures(20°C,30°C,and 40°C)and fertilizer types(urea and manure)on N_(2)O-producers and N_(2)O-reducers,as well as the efficacy of dicyandiamide(DCD)on N_(2)O emissions in a vegetable soil.Results showed that ammonia oxidizers and nirS-type denitrifiers were well adapted to high temperature(40°C)with manure application,while the fungal nirK-denitrifiers had better tolerance with urea application.The nosZ clade I microbes had a strong adaptability to various temperatures regardless of fertilization type,while the growth of nosZ clade II group microbes in non-fertilized soil(control)were significantly inhibited at higher temperature.The N_(2)O emissions were significantly decreased with increasing temperature and DCD application(up to 60%,even at 40°C).Under high temperature conditions,fungal denitrifiers play a significant role in N-limited soils(non-fertilized)while nirS-type denitrifiers was more important in fertilized soils in N_(2)O emissions,which should be specially targeted when mitigating N_(2)O emissions under global warming climate.

关 键 词：nitrogen fertilizer microorganisms nitrification inhibitor bacteria ARCHAEA FUNGI 

分 类 号：S714.3[农业科学—林学]