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The modification of natural lawn types from the effect of utilisation and cultivation in Barót mountains – Kovászna county
80-81Views:53In the last decade the animal stock decreased to half couldn't optimally utilise the disposable natural lawns. Through the changed ownership's the utilisation of the natural lawns also changed. The areas near settlements are overladed and at the same time the big distant areas are only temporally or not at all utilised. On the places in use usually the fertilisation and maintenance work are cancelled. What kind of effect has the changed utilisation and cultivation on natural lawns, do they provoke modifications on it? Looking for an answer for these questions in 2002 a lawn typological measurement was started in two separated areas in Barót Mountains.
This publication is about the observations during this monitoring work. The measurement has been made with the system of lawn typological classification of Tucra-Kovács and collaborators (1987). This classification analyses 3 factors: plant composition, facilities at production site, and the necessary technology for rising the crop. The one year long monitoring is not enough to make conclusions regarding the modification of lawn types, but the changed relations of last decade determined the natural lawn. On the places exposed to exaggerated tread the Dechampsia caespitosa is spreading, on acid soils the Nardus stricta, showing the formation of significant subtypes inside of Agrostis tenuis- Festuca rubra lawn type significant for beech tree zone.
The spreading of woody plants is much significant. The shrubs are spreading showing that the lawn areas withdrew from cultivation is progressing to natural estate, to forest.