5996832489

VEGETATION LANDSCAPE AND GEOBOTANICAL REGIONS

OF POLAND

Summary

The subject of the study is a landscape and regional analysis of differentiation of the potential-natural vegetation in Poland. The aim of the disertation is a distinguish of types of the natural vegetation landscape and determination of the differences and similarites between regions from natural vegetation point of view, from local regions to very important regional units in Continental scalę. On the one hand, the objective of the paper is landscape typology of vegetation units, on the other one, it is geobotanical regionalization.

Attempt of the geobotanical regionalization of Poland was carried out in the past. The most important study were elaborations of W. Szafer (1959, 1972). Essential increase of information data connected with differentiation of Polish vegetation during 70th and 80th decade was a incitement Tor attempt of reanalyse of the regional differentiation in vegetation structure, particulary, in natural-potential vegetation (Tuxen 1956) in Poland.

The basis for the study were the maps of natural-potential vegetation. They were mapping in scalę 1:100000 and published in scalę 1:200000 or 1:300000. The maps are a result of the team work in the same legend and mapping methodology (Faliński 1971, Matuszkiewicz J. M. 8l Kozłowska 1981), which are madę in the whole country, it wasn’t madę for this time. Therefore, the maps are a new-qualitatively documentation for analysis of the regional differences in structure of vegetation cover.

Also, in the paper author used results of other determinations, particularly; syntaxonomical analysis of differentiation of the natural-plant association in Poland, geobotanical-landscape data as well as geobotanical analysis of the regional differentiation of vegetation. The analysis was included also geobotanical maps in different scalę from one natural object to the whole continent, maps of environmental elements as: geology, relief, soils, as well as phisicogeographical maps.

On the basis of generał maps of the potential-natural vegetation, regional units characterized by thee homogenous landscape was distinguished (Matuszkiewicz J. M. 198la). Results were presented in 1:1000000 scalę (Fig. 1). Totaly, 909 basie regional units were distinguished in the country (Fig. 2). Units were characterized by the combination of potential plant association and landscape systems. On the basis of the combination, typology of Polish vegetation landscape and geobotanical regionalization were madę.

As a result of landscape typology, some units characterized by the different taxonomic value were determined. The principal differentiation is presented in the tables 1 and 2. They were basis for similarity analysis between landscape types of vegetation, which were madę by the taxono-mic-numerical methods (Fig. 3 and 4). Also, the typological map of vegetation landscape (Fig. 5) and detail characteristic of the obtained units were madę. At first, on the basis of the similarity between units, geobotanical regionalization as a unitę of the principal units was carried on, from landscape subregions to the landscape regions (Fig. 7). Afterwords, the analysis of difTerences in plant association compossition between landscape regions was done (Fig. 8—12). Regions with the same syntaxonomical composition was jained in the syntaxonomical regions and syntaxonomical subregions. Then they were characterized by the contribution of main biogeographical elements (Fig. 13—19) and they were comparised between one to other (Fig. 20 and 21). On the base of the similarity between syntaxonomical regions, the regional units with higher taxonomic value was determined (Fig. 22). Geobotanical division (from point of view of the potential vegetation