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RESEARCH PRODUCT
Influence of plant traits, soil microbial properties, and abiotic parameters on nitrogen turnover of grassland ecosystems
Richard D. BardgettRichard D. BardgettThomas PommierArnaud FoulquierSandra LavorelCatherine BaxendaleBello MouhamadouMichael SchloterMarie-noëlle BinetFranck PolyJean-christophe ClémentMarie-pascale ColaceUte KrainerEva-maria KastlMichael BahnAmélie A. M. CantarelNicolas LegayKarl GrigulisKarl Grigulissubject
0106 biological sciencesleaf traitsSoil biology[SDV]Life Sciences [q-bio]ammonia‐oxidizing archaea and bacteriawater availability010603 evolutionary biology01 natural sciencescomplex mixtures[ SDV.EE ] Life Sciences [q-bio]/Ecology environmentMesocosmnitrite reducersNutrientlcsh:QH540-549.5Ammonia-oxidizing Archaea And Bacteria ; Arbuscular Mycorrhizal Colonization ; Ecosystem Properties ; Grasslands ; Leaf Traits ; Nitrite Oxidizers ; Nitrite Reducers ; Nutrient Availability ; Root Traits ; Water AvailabilityEcosystemEcology Evolution Behavior and Systematics2. Zero hungerAbiotic component[SDV.EE]Life Sciences [q-bio]/Ecology environment[ SDE.BE ] Environmental Sciences/Biodiversity and Ecology[ SDV ] Life Sciences [q-bio]EcologyEcologySoil organic mattergrasslandsfood and beverages04 agricultural and veterinary sciences15. Life on landnitrite oxidizersammonia-oxidizing archaea and bacteriaroot traitsAgronomySoil water040103 agronomy & agriculturearbuscular mycorrhizal colonization0401 agriculture forestry and fisheriesEnvironmental scienceecosystem propertieslcsh:Ecologynutrient availabilityammonia-oxidizing archaea and bacteria;arbuscular mycorrhizal colonization;ecosystem properties;grasslands;leaf traits;nitrite oxidizers;nitrite reducers;nutrient availability;root traits;water availabilitySoil fertility[SDE.BE]Environmental Sciences/Biodiversity and Ecologydescription
International audience; Although it is known that multiple interactions among plant functional traits, microbial properties , and abiotic soil parameters influence the nutrient turnover, the relative contribution of each of these groups of variables is poorly understood. We manipulated grassland plant functional composition and soil nitrogen (N) availability in a multisite mesocosm experiment to quantify their relative effects on soil N turnover. Overall, root traits, arbuscular mycorrhizal colonization, denitrification potential, as well as N availability and water availability, best explained the variation in measured ecosystem properties, especially the trade-off between nutrient sequestration and plant biomass production. Their relative contributions varied with soil N availability. In relatively N-poor soils (10–20 μg·N·g −1 soil), N turnover was mainly controlled by microbial properties and abiotic soil parameters, whereas in the relatively N-rich soils (110–120 μg·N·g −1 soil), N turnover was mainly controlled by plant traits and microbial properties. This experiment is a strong demonstration of the importance of functional characteristics of both plants and soil microbes, and their interplay with soil N availability, for N turnover in grassland soils.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-11-01 |