Plant communities and indicator plants

The individual plant species do not occur randomly next to each other in permanent grassland. Only species with similar site conditions form a plant community. The plant communities depend on the climatic conditions (dry, moist), the site characteristics (calcareous or siliceous parent material), and the management (use, fertilization).

The number of different plant communities is particularly high in extensively managed grassland. Due to the intensification of productive sites and the abandonment of less favorable sites, some plant communities have already become very rare. Certain plant species are of particular importance because of their strong correlation with management or site characteristics. Their presence allows conclusions to be drawn about specific site characteristics, and they can therefore be used as bioindicators. They can serve to quickly determine site characteristics, identify changes or management errors, and monitor the success of implemented measures.

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Indicator plants can be used to assess and evaluate the soil water balance, the acidity of the soil and consequently the lime requirement of grassland areas.

Indicator plants can be used to assess and evaluate the soil water balance, the acidity of the soil and consequently the lime requirement of grassland areas.

 (c)HBLFA Raumberg-Gumpenstein