2016
The influence of tree species composition on the storage and mobility of semivolatile organic compounds in forest soils
KOMPRDOVÁ, Klára, Jiří KOMPRDA, Ladislav MENSIK, Lenka VAŇKOVÁ, Jiří KULHAVÝ et. al.Základní údaje
Originální název
The influence of tree species composition on the storage and mobility of semivolatile organic compounds in forest soils
Autoři
KOMPRDOVÁ, Klára (203 Česká republika, domácí), Jiří KOMPRDA (203 Česká republika, domácí), Ladislav MENSIK (203 Česká republika), Lenka VAŇKOVÁ (203 Česká republika, domácí), Jiří KULHAVÝ (203 Česká republika) a Luca NIZZETTO (380 Itálie, garant, domácí)
Vydání
Science of the Total Environment, AMSTERDAM, Elsevier, 2016, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.900
Kód RIV
RIV/00216224:14310/16:00090000
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000373220700054
Klíčová slova anglicky
Forest horizon; Mobilization; Soil profile; PAHs; PCBs; Humic substances; Enrichment factors; Tree composition; Global change
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 14. 4. 2017 14:46, Ing. Andrea Mikešková
Anotace
V originále
Soil contamination with PCBs and PAHs in adjacent forest plots, characterized by a distinct composition in tree species (spruce only, mixed and beech only), was analyzed to investigate the influence of ecosystem type on contaminant mobility in soil under very similar climate and exposure conditions. Physical-chemical properties and contaminant concentrations in litter (L), organic (F, H) and mineral (A, B) soil horizons were analyzed. Contaminant distribution in the soil core varied both in relation to forest type and contaminant group/properties. Contaminant mobility in soil was assessed by examining the ratios of total organic carbon (TOC)-standardized concentrations across soil horizons (Enrichment factors, EFTOC) and the relationship between EFTOC and the octanol-water equilibrium partitioning coefficient (K-OW). Contaminant distribution appeared to be highly unsteady, with pedogenic/biogeochemical drivers controlling contaminant mobility in organic layers and leaching controlling accumulation in mineral layers. Lighter PCBs displayed higher mobility in all forest types primarily controlled by leaching and, to a minor extent, diffusion. Pedogenic processes controlling the formation of soil horizons were found to be crucial drivers of PAHs and heavier PCBs distribution. All contaminants appeared to be more mobile in the soil of the broadleaved plot, followed by mixed canopy and spruce forest. Increasing proportion of deciduous broadleaf species in the forest can thus lead to faster degradation or the faster leaching of PAHs and PCBs. The composition of humic substances was found to be a better descriptor of contaminant concentration than TOC.
Návaznosti
LM2011028, projekt VaV |
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LO1214, projekt VaV |
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