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The changes of energy and carbon in top soil and above-ground part of Dryopteris filix-mas (Pteridophyta) species along the succession of beech forest

100%

Kuklová M. , Kukla J. , Šimková I.

2014

tom Vol. 62, nr 3

467--478

The objective of research was to verify, whether succesion of nudal beech forests affects energy, ash and Ct contents of top layers of cambisols and aboveground part of dominant herb species Dryopteris filix-mas. The forest stands, from the juvenile stemwood to the stand of primeval forest character, were located in Slovenské stredohorie Mts (Western Carpathians). It has been found out that the successional stages of beech stands significantly affected soil characteristics of the ecotope, in the case of Dryopteris filixmas species significant difference was observed only for the energy content. Approximately 7.5% less energy was accumulated in humus subhorizons Oof of mature beech stands (110, 200 years) compared with the juvenile stemwoods. On the other hand, in Aoq horizons markedly more energy (by 35–66%) was accumulated in the soils of mature beech phytocoenoses. The influence of stand succession differentiated ash content in Aoq horizons too. Significant difference (7.6%) was found between 85 and 200-year-old beech stand. Within studied parameters only accumulation of Ct in top soil layers was not significantly affected by stand succession. The relation between energy and ash accumulation in top soil layers of studied beech stands showed significant correlations between the variables (P <0.01). Approximately 62% of energy variability in humus subhorizons Ool of the studied stands was affected by the ash content (lower was the ash content – higher was the energy content). In Aoq soil horizons this dependence was 50% (higher was the ash content – lower was the energy content).

The soil-to-herbs transfer of heavy metals in spruce ecosystems

100%

Kuklova M. , Kukla J. , Hnilicka F.

Polish Journal of Environmental Studies

2010

tom 19

nr 6

Bioparameters of selected herb species in High Tatra Mts. spruce ecosystems

100%

Kukla J. , Kovacova M. , Schieber B.

tom 51

nr 3

Bioparameters of selected herb species were studied on five control (undamaged) and five bark beetles damaged parallel plots established in form of two vertical transects in the spruce ecosystems of Bielovodská valley (High Tatra Mts.). The most abundant life forms in the studied phytocoenoses were hemicryptophytes (65%), the least abundant geophytes (5%). According to significance of differences in the average length of shoots the sensitivity of herb species to different ecological conditions and calamitous changes of the spruce stands density is as follows: Homogyne alpina > Luzula sylvatica = Dryopteris dilatata > Oxalis acetosella. According to significance of differences in energy content the sensitivity of species was following: Luzula sylvatica > Oxalis acetosella > Dryopteris dilatata > Homogyne alpina > Vaccinium myrtillus. However, the mean values calculated for undamaged and for damaged plots were significantly different (P <0.05) only in the case of weight of Luzula sylvatica shoots.