Počet záznamů: 1
Impact of Nutrient Additions on Free-Living Nitrogen Fixation in Litter and Soil of Two French-Guianese Lowland Tropical Forests
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SYSNO ASEP 0544803 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Impact of Nutrient Additions on Free-Living Nitrogen Fixation in Litter and Soil of Two French-Guianese Lowland Tropical Forests Tvůrce(i) Van Langenhove, L. (BE)
Depaepe, T. (BE)
Verryckt, L. T. (BE)
Vallicrosa, H. (ES)
Fuchslueger, L. (AT)
Lugli, L. F. (BR)
Brechet, L. (BE)
Ogaya, R. (ES)
Llusia, J. (ES)
Urbina, I. (ES)
Gargallo-Garriga, Albert (UEK-B) ORCID, SAI, RID
Grau, O. (ES)
Richter, A. (DE)
Penuelas, J. (ES)
Van Der Straeten, D. (BE)
Janssens, I. A. (BE)Celkový počet autorů 16 Číslo článku e2020JG006023 Zdroj.dok. Journal of Geophysical Research-Biogeosciences. - : Wiley - ISSN 2169-8953
Roč. 126, č. 7 (2021)Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova acetylene-reduction ; n-2 fixation ; rain-forest ; leaf-litter ; phosphorus ; molybdenum ; limitation ; carbon ; heterogeneity ; potassium ; phosphorus ; molybdenum ; feld fertilization ; cross-site comparison ; acetylene reduction assay ; N-15(2) calibration Vědní obor RIV GK - Lesnictví Obor OECD Environmental sciences (social aspects to be 5.7) CEP EF16_027/0008137 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Výzkumná infrastruktura CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Způsob publikování Omezený přístup Institucionální podpora UEK-B - RVO:86652079 UT WOS 000677821700013 EID SCOPUS 85111567868 DOI 10.1029/2020JG006023 Anotace In tropical forests, free-living Biological nitrogen (N) fixation (BNF) in soil and litter tends to decrease when substrate N concentrations increase, whereas increasing phosphorus (P) and molybdenum (Mo) soil and litter concentrations have been shown to stimulate free-living BNF rates. Yet, very few studies explored the effects of adding N, P, and Mo together in a single large-scale fertilization experiment, which would teach us which of these elements constrain or limit BNF activities. At two distinct forest sites in French Guiana, we performed a 3-year in situ nutrient addition study to explore the effects of N, P, and Mo additions on leaf litter and soil BNF. Additionally, we conducted a short-term laboratory study with the same nutrient addition treatments (+N, +N+P, +P, +Mo, and +P+Mo). We found that N additions alone suppressed litter free-living BNF in the field, but not in the short-term laboratory study, while litter free-living BNF remained unchanged in response to N+P additions. Additionally, we found that P and P+Mo additions stimulated BNF in leaf litter, both in the field and in the lab, while Mo alone yielded no changes. Soil BNF increased with P and P+Mo additions in only one of the field sites, while in the other site soil BNF increased with Mo and P+Mo additions. We concluded that increased substrate N concentrations suppress BNF. Moreover, both P and Mo have the potential to limit free-living BNF in these tropical forests, but the balance between P versus Mo limitation is determined by site-specific characteristics of nutrient supply and demand. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2022 Elektronická adresa https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JG006023
Počet záznamů: 1