Naziemny, lotniczy i satelitarny monitoring roślinności Pomorza i Kujaw

Abstract

The study presents the geographic information system for gathering historical and contemporary floristic and phytosociological data. Releves performed with the Braun-Blanquet method are compiled in the database with the program ACCESS. The same software was used to create databases for plant localities, distribution of plant population on permanent study plots as well as for contemporary pollen-rain samples and structure of ancient vegetation recorded in palynological profiles. In order to present the spatial distribution and management of those data, the software ArcView 3.2 was applied. The position of currently received data is determined by means of the GPS receiver. The system is supplied with maps of real and potential vegetation as well as with information on the vegetation structure, coming from topographic and forest economic maps, as well as air photographs and satellite images (Landsat MSS, Landsat 5 TM, Landsat 7 ETM + , IKONOS). The integral part of the system is constituted by library of computer programs used for numerical classification and ordination of vegetation data (the packages MVSP, Canoco, Twinspan, Ordiflex, Syntax and others). The structure of our system allows entering phytosociological data from databases prepared with different types of software, e.g. commonly used in Europe the program TURBOVEG. The data on plant localities can be presented in the network of quadrates applied in the system: "The distribution atlas of vascular plants in Poland". Besides tl\e structure of the created GIS, also the main research projects were discussed in this paper, those which provides the databases with information on dic vegetation. They are: 1 - studies on changes of halophilous vegetation in the Kujawy region over the last 50 years; 2 - distribution of wind-induced damages in the Bory Tucholskie Forests and in the vicinity of Toruń; 3 - defying the influence of the forest management on vegetation structure of the landscape by comparing the area of the National Park "Bory Tucholskie" with the complex of managed forests; 4 - influence of socio-economic processes, particularly activities of the lo-cal human community over the last 300 years, on biodiversity and heterogeneity changes in die Tuchola Forest landscape. We hope, that data on vegetation of northern Poland will be transferred to the developed system, particularly the data from Gdańsk Pomerania and the Kujawy region collected by scientists from our University since their origin, i.e. over fifty years. Our task for the coming years is to prepare software that would enable data transferring to the system TURBOVEG and to intensify the co-operation with centres in Europe which apply this software and which conduct studies on relations between socio-economic factors and biodiversity and heterogeneity in the historical aspect.