thery, and
s, eds. P.J.
), 323-334,
ights from
48, 51-60,
15, 46-55,
nge, edited
ical Union
erro Azul,
y from the
o, pp. 203-
waii, from
port to the
John Wiley
waii, using
Mroz, Marek
APPLICATION OF SPOT IMAGES AND FOREST VEGETATION MAPS FOR CREATION OF
THE DATABASE FOR FORESTED SOILS USING GIS MODELING
Marek MRÓZ', Stanislaw BIALOUSZ"
" Olsztyn University, Poland
Faculty of Geodesy and Regional Planning
Department of Photogrammetry & Remote Sensing
Marek.mroz Q kosmos.uni.olsztyn.p!
"Warsaw University of Technology, Poland
Faculty of Geodesy and Cartography
Laboratory of Remote Sensing & GIS
S.Bialousz 9 gik.pw.edu.pl
Working Group ....
KEY WORDS: Database, SPOT, Soil conservation, GIS, Forestry.
ABSTRACT
Nowadays in Poland a creation of Regional Soils Information System is needed. This system should fulfil the geometric
and thematic accuracy criteria required for maps at the 1:100 000 scale. The first component of such a system could be
a geographical soils database. For the whole country area the soil-agricultural maps at the scale 1/100 000 exist. Using
these maps it is possible to begin the process of soils database establishing. Unfortunately these maps cover only
agricultural areas. The soils covered by forest are marked on these maps only by label "forests". For the needs of
Regional Soils Information System creation it is necessary to acquire the data about the forested soils. For the forested
areas there are detailed soil maps at 1: 5000 scale, but their use in system creation is not appropriate because of the scale
span.
In this paper an indirect method of data acquisition on forested soils is presented. This method consists in digital
processing and computer assisted interpretation of satellite imagery (SPOT-4) and interpretation of forest vegetation
maps (forest sites maps). Existing soils maps at 1: 300 000 scale, geological maps and map of potential (primary)
vegetation can be used as ancillary data. All mentioned above data beside satellite imagery are stored in analogue form
and must be converted to digital (raster or vector) form. In this paper the preliminary results of the first stage of the
method elaboration are presented: fusion of the data issued from forest vegetation map (at 1: 25 000 scale) and from
SPOT image processing results. The processing of SPOT data has been focused on enhancing of stand of trees
differentiation which can indicate the relationships between soils, microrelief and vegetation. The correlation between
forest’s vegetation seen on satellite image and forest sites indicated on forest maps added to geological data made
possible to distinguish 5 units in soil database.
1 INTRODUCTION
The study bas been carried out on the area of about 5 000 ha in the forest complex named "Puszcza Biala" situated in
the Central Poland (80 km north - east from Warsaw). The main idea has been to use the modern technology like
satellite images together with thematic maps existing for this area for soils information system creation. Off course the
whole methodology consist of indirect, deductive method of reasoning on soils types and their properties having
different informations on: geology, geomorphology and relief.
Vegetation , particularly trees and undergrowth layer is a good indicator of certain soils properties. On the other hand
permanent vegetation associations are important factor of pedogenese. Existing maps at reasonable scales for this
project representing stands, forest sites and stand age are stored in analogue form. The contents of that maps is often too
generalized and not up-to-date. From this point of view satellite image seems to be a source of information
complementary and /or alternative. In this paper we have shown only the first stage of the way named in the title "GIS
modeling", limited to the comparison of maps and a satellite image. The figures attached not show yet whole spatial
and multi-layer reasoning chain.
International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B7. Amsterdam 2000. 911
