Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57, 251-262
Published online 2014-10-10

The ecological restoration and the development of succession in biocentre Hráza near Kroměříž

Miluše Poláková

Odbor řízení dotačních programů, Krajský úřad Zlínského kraje, třída Tomáše Bati 21, 761 90 Zlín, Česká republika

A restoration ecology is a branch and also possible approach to the protections of both nature and landscape which completes the conservative trends (conservation biology). An ecological restoration is a practical application of this branch which can be used in the restoration of ecosystems, coenoses, populations or sites disturbed or damaged by human impact.
An ecological restoration offers the interesting alternatives to technical reclamations of the localities disturbed by mining. It exploits the natural processes (mainly controlled and spontaneous successions) respecting the development of coenoses adequate to the locality. The degree of man assistance in restoration process can be different in accordance to many factors, such as origin of disturbance, time factor of restoration, costs, surroundings of the locality (ecological stability, species pool), estimated resulting dependability, sustainability of final coenoses, future function of the area, etc.
The local biocentre Hráza near Kroměříž was established based on the restoration project c. 12 years ago in exhausted gravel-sand pit. Some processes of ecological restoration were used there, pre­do­mi­nan­tly a controlled succession – sowing of meadow plant species and plant transfer. Also regular management and monitoring were initiated. The results of monitoring of meadow phytocoenoses are presented in this paper. The inventory of plant species, abundance (according to Braun-Blanquet’s scale) have been observed on the sample plots (established within the frame of controlled succession) during the years 2002 – 2009 (here the years 2002 and 2007 are compared). The abundance data of plant species in wetlands phytocoenoses from the same years are also compared. The inventory of forest phytocoenoses has been undertaken in the years 2006 and 2009. The monitoring enables us to rate the general success of the project, the realized achievements of (mainly) controlled succession and the regular management. The paper evaluates the complex development of the locality, warns the negative aspects and brings the recommendations for subsequent management.


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