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Responses of nitrogen concentrations and pools to multiple environmental change drivers:A meta-analysis across terrestrial ecosystems
- Source :
- Yue, K, Peng, Y, Fornara, D A, Van Meerbeek, K, Vesterdal, L, Yang, W, Peng, C, Tan, B, Zhou, W, Xu, Z, Ni, X, Zhang, L, Wu, F & Svenning, J C 2019, ' Responses of nitrogen concentrations and pools to multiple environmental change drivers : A meta-analysis across terrestrial ecosystems ', Global Ecology and Biogeography, vol. 28, no. 5, pp. 690-724 . https://doi.org/10.1111/geb.12884
- Publication Year :
- 2019
-
Abstract
- Aim We sought to understand how the individual and combined effects of multiple environmental change drivers differentially influence terrestrial nitrogen (N) concentrations and N pools and whether the interactive effects of these drivers are mainly antagonistic, synergistic or additive. Location Worldwide. Time period Contemporary. Major taxa studied Plants, soil, and soil microbes in terrestrial ecosystems. Methods We synthesized data from manipulative field studies from 758 published articles to estimate the individual, combined and interactive effects of key environmental change drivers (elevated CO2, warming, N addition, phosphorus addition, increased rainfall and drought) on plant, soil, and soil microbe N concentrations and pools using meta‐analyses. We assessed the influences of moderator variables on these effects through structural equation modelling. Results We found that (a) N concentrations and N pools were significantly affected by the individual and combined effects of multiple drivers, with N addition (either alone or in combination with another driver) showing the strongest positive effects; (b) the individual and combined effects of these drivers differed significantly between N concentrations and N pools in plants, but seldom in soils and microbes; (c) additive effects of driver pairs on N concentrations and pools were much more common than synergistic or antagonistic effects across plants, soils and microbes; and (d) environmental and experimental factors were important moderators of the individual, combined and interactive effects of these drivers on terrestrial N. Main conclusions Our results indicate that terrestrial N concentrations and N pools, especially those of plants, can be significantly affected by the individual and combined effects of environmental change drivers, with the interactive effects of these drivers being mostly additive. Our findings are important because they contribute to the development of models to better predict how altered N availability affects ecosystem carbon cycling under future environmental changes. ispartof: GLOBAL ECOLOGY AND BIOGEOGRAPHY vol:28 issue:5 pages:1-35 status: Published online
- Subjects :
- 0106 biological sciences
Environmental change
warming
interactive effects
010603 evolutionary biology
01 natural sciences
nitrogen addition
Grassland
Soil respiration
combined effects
Ecosystem
elevated CO
Ecology, Evolution, Behavior and Systematics
Global and Planetary Change
geography
Biomass (ecology)
geography.geographical_feature_category
Ecology
010604 marine biology & hydrobiology
phosphorus addition
Soil water
individual effects
Environmental science
Terrestrial ecosystem
Cycling
altered rainfall
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Yue, K, Peng, Y, Fornara, D A, Van Meerbeek, K, Vesterdal, L, Yang, W, Peng, C, Tan, B, Zhou, W, Xu, Z, Ni, X, Zhang, L, Wu, F & Svenning, J C 2019, ' Responses of nitrogen concentrations and pools to multiple environmental change drivers : A meta-analysis across terrestrial ecosystems ', Global Ecology and Biogeography, vol. 28, no. 5, pp. 690-724 . https://doi.org/10.1111/geb.12884
- Accession number :
- edsair.doi.dedup.....e236439396c528a714dc6838a94d5bef