Publications by authors named "Lenka Mladkova"
Factors controlling spatial distribution of soil acidification and Al forms in forest soils.
J Inorg Biochem
September 2005
Soil acidification and Al release in forest soils is controlled by a number of factors, like acid deposition, forest type, parent rock, altitude, etc. This paper studies the principal stand factors affecting spatial distribution of the content of KCl-extractable Al (Al(KCl), mainly exchangeable), Na4P2O7-extractable Al (Al(Na4P2O7), mainly organically bound), and other soil characteristics related to acidification in surface organic (O) and subsurface mineral (B) horizons in the Jizera Mountains region. Geostatistical methods were exploited.
View Article and Find Full Text PDFSoil acidification promotes Al release from minerals and parent bedrocks; it also affects Al mobilization and speciation. Speciation of KCl extractable and water-extractable Al in forest soils was done by means of HPLC/IC method. Species Al3+ were the most abundant Al forms in the KCl extracts (around 93%).
View Article and Find Full Text PDFArticle Synopsis
- - Labile aluminum (Al) forms in acid soils can be toxic to plants, but there's no standard method for extracting it from soil.
- - Recommended extraction methods include KCl for exchangeable Al, CuCl2 for weakly organically bound Al, and Na4P2O7 for total organically bound Al, which are effective and adaptable across different soils.
- - The paper discusses using HPLC to detail the speciation of exchangeable soil Al, highlighting that speciation varies with soil pH and organic matter, and proposes a framework for understanding Al fractionation in soils.