OPENAIRE OpenAire Datacite Zurich Open Repository and Archive Bielefeld Academic Search Engine (BASE) Recolector de Ciencia Abierta, RECOLECTA DIGITAL.CSIC PURE Aarhus University Crossref Europe PubMed Central KITopen Global Change Biology Open Access 2023-10-27 2024-01-01 Abstract<p>Anthropogenic nitrogen (N) loading alters soil ammonia￢ﾀﾐoxidizing archaea (AOA) and bacteria (AOB) abundances, likely leading to substantial changes in soil nitrification. However, the factors and mechanisms determining the responses of soil AOA:AOB and nitrification to N loading are still unclear, making it difficult to predict future changes in soil nitrification. Herein, we synthesizeￂﾠ68 field studies around the world to evaluate the impacts of N loading on soil ammonia oxidizers and nitrification. Across a wide range of biotic and abiotic factors, climate is the most important driver of the responses of AOA:AOB to N loading. Climate does not directly affect the N￢ﾀﾐstimulation of nitrification, but does so via climate￢ﾀﾐrelated shifts in AOA:AOB. Specifically, climate modulates the responses of AOA:AOB to N loading by affecting soil pH, N￢ﾀﾐavailability and moisture. AOB play a dominant role in affecting nitrification in dry climates, while the impacts from AOA can exceed AOB in humid climates. Together, these results suggest that climate￢ﾀﾐrelated shifts in soil ammonia￢ﾀﾐoxidizing community maintain the N￢ﾀﾐstimulation of nitrification, highlighting the importance of microbial community composition in mediating the responses of the soil N cycle to N loading.</p 550 Nitrogen 2306 Global and Planetary Change ammonia oxidizers 580 Plants (Botany) nitrogen addition 333 Nitrogen/analysis 2300 General Environmental Science Soil 10126 Department of Plant and Microbial Biology Ammonia Climate change 10211 Zurich-Basel Plant Science Center Soil Microbiology Phylogeny Soil/chemistry 2. Zero hunger Nitrogen addition info:eu-repo/classification/ddc/550 ddc:550 Microbial community structure 15. Life on land Nitrification Archaea 6. Clean water nitrification Ammonia oxidizers Earth sciences climate change 13. Climate action microbial community structure 2304 Environmental Chemistry soil properties Soil properties 2303 Ecology Oxidation-Reduction Zhang, Yong, Cheng, Xiaoli, van Groenigen, Kees Jan, García-Palacios, Pablo, Cao, Junji, Zheng, Xunhua, Luo, Yiqi, Hungate, Bruce A, Terrer, Cesar, Butterbach-Bahl, Klaus, Olesen, Jørgen Eivind, Chen, Ji, 2023-10-27 journalpaper Abstract<p>Anthropogenic nitrogen (N) loading alters soil ammonia￢ﾀﾐoxidizing archaea (AOA) and bacteria (AOB) abundances, likely leading to substantial changes in soil nitrification. However, the factors and mechanisms determining the responses of soil AOA:AOB and nitrification to N loading are still unclear, making it difficult to predict future changes in soil nitrification. Herein, we synthesizeￂﾠ68 field studies around the world to evaluate the impacts of N loading on soil ammonia oxidizers and nitrification. Across a wide range of biotic and abiotic factors, climate is the most important driver of the responses of AOA:AOB to N loading. Climate does not directly affect the N￢ﾀﾐstimulation of nitrification, but does so via climate￢ﾀﾐrelated shifts in AOA:AOB. Specifically, climate modulates the responses of AOA:AOB to N loading by affecting soil pH, N￢ﾀﾐavailability and moisture. AOB play a dominant role in affecting nitrification in dry climates, while the impacts from AOA can exceed AOB in humid climates. Together, these results suggest that climate￢ﾀﾐrelated shifts in soil ammonia￢ﾀﾐoxidizing community maintain the N￢ﾀﾐstimulation of nitrification, highlighting the importance of microbial community composition in mediating the responses of the soil N cycle to N loading.</p Shifts in soil ammonia‐oxidizing community maintain the nitrogen stimulation of nitrification across climatic conditions 10.1111/gcb.16989 https://doi.org/10.1111/gcb.16989 839806