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Long-term changes in soil composition in unmanaged central European mountain spruce forests after decreased acidic deposition and a bark beetle outbreak
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SYSNO ASEP 0583662 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Long-term changes in soil composition in unmanaged central European mountain spruce forests after decreased acidic deposition and a bark beetle outbreak Author(s) Kopáček, Jiří (BC-A) RID, ORCID
Čapek, P. (CZ)
Choma, M. (CZ)
Cudlín, Pavel (UEK-B) RID, SAI, ORCID
Kaňa, Jiří (BC-A) RID, ORCID
Kopáček, Marek (BC-A) RID, ORCID
Porcal, Petr (BC-A) RID, ORCID
Šantrůčková, H. (CZ)
Tahovská, K. (CZ)
Turek, Jan (BC-A)Number of authors 10 Article number 106839 Source Title Catena. - : Elsevier - ISSN 0341-8162
Roč. 222, Dec (2023)Number of pages 13 s. Language eng - English Country NL - Netherlands Keywords phosphate sorption ; nitrogen dynamics ; tatra mountains ; plesne lakes ; Exchangeable cations ; Metal oxyhydroxides Subject RIV DF - Soil Science OECD category Soil science Subject RIV - cooperation Global Change Research Institute - Ecology, Behaviour R&D Projects TO01000220 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) GA22-05421S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support BC-A - RVO:60077344 ; UEK-B - RVO:86652079 UT WOS 000992648200001 EID SCOPUS 85143488042 DOI 10.1016/j.catena.2022.106839 Annotation We studied the effect of tree mortality on nutrient concentrations and pools in soils of two unmanaged mountain forest catchments (Plesne, PL., and Certovo, CT., Czech Republic) recovering from acidification due to decreasing acidic atmospheric deposition since the late 1980s. Both catchments were situated at similar elevation, and before a bark beetle outbreak were covered by healthy mature Norway spruce (Picea abies) forests. However, differing bedrock [granite (PL) vs mica-schist and quartzite (CT)] resulted in lower concentrations of base cations (except for magnesium), but higher concentrations of aluminium and iron oxyhydroxides in the CT soils, enabling higher phosphorus (P) accumulation. Despite these differences, soils were similarly acidic, with pH(H2O) from 3.5 to 4.3 and cation exchange capacity (CEC) dominated by exchangeable protons (H-ex(+)) and aluminium in both catchments in 2000. In the PL catchment, >75 % of mature spruce trees died after a bark beetle infestation between 2004 and 2008, and all dead biomass was left on site. Forest damage in the CT catchment was minor. Soil concentrations and pools of exchangeable calcium (Ca-ex(2+)), magnesium (Mg-ex(2+)), potassium (K-ex(+)), and H-ex(+) were tightly related to concentrations of organic carbon (C). Following the tree dieback in the PL catchment, we observed significant (p < 0.05) increases in (1) concentrations and pools of Ca-ex(2+), Mg-ex(2+) , and K-ex(+), (2) base saturation (from 30 to similar to 40 %), (3) CEC:C ratios (i.e., CEC of soil organic carbon), (4) pH(H2O), (5) mineral P forms, and (6) total nitrogen (N) in the upper (O and A) soil horizons. Similar changes were less pronounced or negligible in the less impacted CT soils. The elevated litterfall after tree dieback, resulting in the increased input of base cations to forest floor and increased CEC of soil organic C, played a more important role in the decreasing acidity of the PL soils than the continuing decrease in acidic deposition. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2024 Electronic address https://doi.org/10.1016/j.catena.2022.106839
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