Počet záznamů: 1
Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes
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SYSNO ASEP 0552157 Druh ASEP J - Článek v odborném periodiku Zařazení RIV O - Ostatní Poddruh J Článek ve WOS Název Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes Tvůrce(i) Kwon, T. (JP)
Shibata, H. (JP)
Kepfer-Rojas, S. (DK)
Schmidt, I. K. (DK)
Larsen, K. S. (DK)
Beier, C. (DK)
Berg, B. (FI)
Verheyen, K. (BE)
Lamarque, J.-F. (US)
Hagedorn, F. (CH)
Eisenhauer, N. (DE)
Djukic, I. (CH)
Doležal, Jiří (BU-J) RID, ORCID
Růžek, M. (CZ)
Petřík, Petr (BU-J) RID, ORCIDCelkový počet autorů 249 Číslo článku 678480 Zdroj.dok. Frontiers in Forests and Global Change
Roč. 4, JUL 14 (2021)Poč.str. 18 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova tea bag ; litter decomposition ; carbon turnover Vědní obor RIV EH - Ekologie - společenstva Obor OECD Ecology Způsob publikování Open access Institucionální podpora BU-J - RVO:67985939 UT WOS 000678671500001 EID SCOPUS 85111449981 DOI 10.3389/ffgc.2021.678480 Anotace Litter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems and is mainly controlled by environmental conditions, substrate quantity and quality as well as microbial community abundance and composition. In particular, the effects of climate and atmospheric nitrogen (N) deposition on litter decomposition and its temporal dynamics are of significant importance, since their effects might change over the course of the decomposition process. Within the TeaComposition initiative, we incubated Green and Rooibos teas at 524 sites across nine biomes. We assessed how macroclimate and atmospheric inorganic N deposition under current and predicted scenarios (RCP 2.6, RCP 8.5) might affect litter mass loss measured after 3 and 12 months. Our study shows that the early to mid-term mass loss at the global scale was affected predominantly by litter quality (explaining 73% and 62% of the total variance after 3 and 12 months, respectively) followed by climate and N deposition. The effects of climate were not litter-specific and became increasingly significant as decomposition progressed, with MAP explaining 2% and MAT 4% of the variation after 12 months of incubation. The effect of N deposition was litter-specific, and significant only for 12-month decomposition of Rooibos tea at the global scale. However, in the temperate biome where atmospheric N deposition rates are relatively high, the 12-month mass loss of Green and Rooibos teas decreased significantly with increasing N deposition, explaining 9.5% and 1.1% of the variance, respectively. The expected changes in macroclimate and N deposition at the global scale by the end of this century are estimated to increase the 12-month mass loss of easily decomposable litter by 1.1–3.5% and of the more stable substrates by 3.8–10.6%, relative to current mass loss. In contrast, expected changes in atmospheric N deposition will decrease the mid-term mass loss of high-quality litter by 1.4–2.2% and that of low-quality litter by 0.9–1.5% in the temperate biome. Our results suggest that projected increases in N deposition may have the capacity to dampen the climate-driven increases in litter decomposition depending on the biome and decomposition stage of substrate. Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2023 Elektronická adresa https://doi.org/10.3389/ffgc.2021.678480
Počet záznamů: 1