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Grass rather than legume species decreases soil organic matter decomposition with nutrient addition
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SYSNO ASEP 0571015 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Grass rather than legume species decreases soil organic matter decomposition with nutrient addition Tvůrce(i) Jílková, Veronika (BC-A) RID, ORCID
Sim, A. (GB)
Thornton, B. (GB)
Paterson, E. (GB)Číslo článku 108936 Zdroj.dok. Soil Biology and Biochemistry. - : Elsevier - ISSN 0038-0717
Roč. 177, February (2023)Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova temperate grassland ; legume ; Grass ; root-derived respiration ; priming effect ; PLFA Vědní obor RIV DF - Pedologie Obor OECD Soil science CEP LM2015075 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_013/0001782 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora BC-A - RVO:60077344 UT WOS 000915875100001 EID SCOPUS 85145232383 DOI 10.1016/j.soilbio.2022.108936 Anotace Nutrient addition to soil can strongly affect interactions at the root-soil interface, which play a central role in terrestrial ecosystem functions. Controversies, however, remain on whether or not soils sequester more carbon (C) with nutrient addition (for example in the context of increasing atmospheric CO2 concentrations), and what is the role of plant traits and growth strategies in these impacts. In this study, we conducted a laboratory manipulation experiment focused on the effects of a grass (Lolium perenne L.) species, a legume (Lotus corniculatus L.) species, and their mixture with or without nutrient addition on plant biomass, root-derived respiration, soil organic matter (SOM) decomposition, and microbial community structure.L. perenne biomass and root-derived respiration were more responsive than L. corniculatus biomass and rootderived respiration to nutrient addition. The decomposition of SOM decreased, and the priming effect (PE) was negative, both with and without nutrient addition, in both plant species. Nutrient addition, however, impacted the magnitude of PE to a lesser extent in L. corniculatus than in L. perenne and in monocultures than in the mixture. With nutrient addition, fungi were more abundant and utilized a greater proportion of root-derived C than bacteria. In conclusion, the current study suggests that nutrient addition may promote a positive soil C-balance through reduced SOM decomposition, and that plant species mixtures with increased root-derived C-flow (representing root and rhizomicrobial respiration) suppressed SOM decomposition to a greater extent. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2024 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0038071722003935?via%3Dihub
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