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001-es BibID:	BIBFORM057922
Első szerző:	Veres Zsuzsa (környezetkutató)
Cím:	Soil extracellular enzyme activities are sensitive indicators of detrital inputs and carbon availability / Zsuzsa Veres, Zsolt Kotroczó, István Fekete, János Attila Tóth, Kate Lajtha, Kimberly Townsend, Béla Tóthmérész
Dátum:	2015
ISSN:	0929-1393
Megjegyzések:	In a litter manipulation experiment in a temperate deciduous oak forest in Central Europe, we examinedsoil carbon contents and density fractions, as well as b-glucosidase and polyphenol oxidase enzymeactivities, which play central roles in the degradation of litter and soil organic matter. Our measurementswere taken in the DIRT (detritus input and removal treatments) plots, where manipulations includedoubling of leaf litter or woody debris inputs, as well as removal of litter, trenching to prevent root inputs,and removal of all litter inputs. After 10 years of manipulation, soil C content did not vary predictablyamong plots, although the amount of light fraction material was greater in control and litter additionplots compared to litter removal plots. Even after 10 years of litter addition, there were no significantdifferences in activities of either enzyme in double litter plots compared to control plots, a resultconsistent with other observed measures of microbial activity. However, removal of roots and littercaused significant decreases in b-glucosidase activities very quickly, and these differences increased overtime. However, polyphenol oxidase activities were not significant different among treatments. Enzymeactivities were not correlated with total soil carbon contents, but activities of both enzymes weresignificantly and positively related to the amount of light fraction carbon, suggesting that enzymesrespond to increases in labile carbon availability.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban Detritus Decomposition DIRT Extracellular enzymes Litter manipulation [béta]-Glucosidase Polyphenol oxidase
Megjelenés:	Applied Soil Ecology. - 92 (2015), p. 18-23. -
További szerzők:	Kotroczó Zsolt (1975-) (biológus, ökológus) Fekete István Tóth János Attila (1945-) (ökológus) Lajtha, Kate Townsend, Kimberly Tóthmérész Béla (1960-) (ökológus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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