Dominant trees affect microbial community composition and activity in post-mining afforested soils

0423999 - MBÚ 2014 RIV GB eng J - Článek v odborném periodiku
Šnajdr, Jaroslav - Dobiášová, Petra - Urbanová, Michaela - Petránková, Mirka - Cajthaml, Tomáš - Frouz, Jan - Baldrian, Petr
Dominant trees affect microbial community composition and activity in post-mining afforested soils.
Soil Biology and Biochemistry. Roč. 56, JAN 2013 (2013), s. 105-115. ISSN 0038-0717
Grant CEP: GA MŠMT(CZ) OC10064; GA ČR GAP504/12/1288; GA MŠMT 2B08023
Institucionální podpora: RVO:61388971 ; RVO:60077344
Klíčová slova: Enzyme activity * Litter * Microbial biomass
Kód oboru RIV: EE - Mikrobiologie, virologie; EH - Ekologie - společenstva (BC-A)
Impakt faktor: 4.410, rok: 2013

The aim of this work was to quantify the effects of vegetation on the activity of extracellular enzymes in the litter and soil. To achieve this, we investigated a set of post-mining sites in a brown-coal mine deposit area near Sokolov, Czech Republic. The sites were 22-33 years old and had been established on the same initial substrate by planting with six tree genera or leaving for spontaneous revegetation, with four replicate sites per vegetation type. The activity of extracellular hydrolytic and oxidative enzymes and the microbial community composition of the litter and topsoil were compared in the spring, summer and autumn using the dominant tree, pH, soil nutrient content and soil moisture as the explanatory variables. Sites under individual trees exhibited significant differences in the chemical properties of both the litter and soil, and the tree effect was identified as the most important factor affecting the activity of extracellular enzymes either directly or in the interaction with seasonal effects, although not all pairs of tree species were significantly different from each other. Seasonal effects on enzyme activity were only important in the litter. The effects of dominant trees and of seasons contributed equally to the variation in the microbial community composition at individual sites. Only a minor part of the tree effect could be explained by differences in the litter or soil chemistry
Trvalý link: http://hdl.handle.net/11104/0230028