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Effect of natural and anthropogenic acidifi cation on aluminium distribution in forest soils of two regions in the Czech Republic

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Journal of Forestry Research 2021年第1期32卷 363-370页

作者： Lenka Pavlů LubošBorůvka Ondřej Drábek Antonín Nikodem Department of soil Science and soil Protection Faculty of AgrobiologyFood and Natural ResourcesCzech University of Life Sciences PraguePragueCzechia

To elucidate the dynamics of aluminium(Al),an element potentially toxic and strongly aff ected by acidifi cation processes,in soils,we selected two regions that were similar in relief,soil types,and vegetation cover but diff ered markedly in their history of acid precipitation:the JizerskéMountains(anthropogenically acidifi ed)and the NovohradskéMountains(naturally acidifi ed)in the Czech *** levels of Al forms(exchangeable and organically bound)associated with diff erent environmental impacts were measured and univalent,divalent and trivalent Al species were quantifi ed using HPLC/*** and organically bound Al concentrations were higher in the anthropogenically acidifi ed *** the concentrations of the leastdangerous species,the univalent,in organic soil horizons were similar for both *** concentrations of exchangeable Al forms were correlated with Ca concentrations and with pH in the organic *** known relationship of Al with soil pH was stronger in the mineral *** of exchangeable Al forms concentrations with sulphur concentrations or even more with the sulphur calcium molar ratio were found only in the JizerskéMountains,not in the Novohradské.Generally,the obtained results support the hypothesis that mechanisms diff ered between natural and anthropogenic acidifi cation.

关键词： soil acidifi cation Spruce forest soil properties Aluminium forms Aluminium species

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