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-stand classes 
-Utilization classes 
- Age classes 
- Topography (roads -contrours) 
Compartments are numbered from 1 through 76. 
There are two different working circles, namely 
working circle for Fir (coded with A) and 
working circle for Pine-Beech (coded with B), 
Wor: king circle A consists of 5 Felling Blocks 
(A-1, A-2, A-3, A-4, A-5) and worcking circle B 
consists of 10 Felling Blocks (B-1, B-2,... 
B-10). There are 6 site classes in terms of qua- 
lity) (e.g. site of 1 st quality) The sites of 
5th and 6th qualities represent unproductive 
forest - coppice and clearing, respectively. 
14 different stand classes stand for  aifferent 
combinations of tree species and their densities. 
Tree species in stands are black pine, scotch 
pine, pine, oak, fir and beech. Inventory cata 
of stands are known as the annual grawing stock 
and increment in m3/hectare for each tree 
specie. Utilization classes are determined as 
felling area, clearing, reserved area, unproduc- 
tive coppice, regeneration area and unploductive 
forest. Since there werent,enough information 
on age classes, this layer hasnt been used. 
Topographic information on this forest serie 
consists of roads and contour lines. All of 
the data layers but the topography are 
considered to be of poligon type. Roads and 
contours are of line type. At this first step 
all the covertype maps were manually digitiezed, 
editted and topology created. Decriptive data 
were added using pc ARC/INFO TABLES. Then all 
the layer were transformed from cigitizing table 
coordinates into Gauss-Krüger coordinate system. 
The second step of the FORMIS project was to 
perform polygon overlay operations in order to 
build geometrical relationships between diffirent 
polygon layers (e.g., compartments and stand 
classes, utilization classes and working circles, 
etc.) 
At the third step the GIS application program 
FORMIS was written in simple macro language of 
the Arc/info software, in order to perform some 
analytical operations on the FORMIS geographic 
database. This opplication program is menudriven 
and has the basic capabilities of a GIS; namely 
drawing a map (composed or a new one), spatial 
query, statistics on a certain numeric 
attribute of a layer, zoom, deleting a map (see 
figure: 1) 
At the fourth step, using application software 
FORMIS, maps were composed (see figure: 2) and 
reports were generated (see figure: 3). For 
example the answers to the following questions can 
be obtained in a short time using FORMIS 
although this is a difficult and time consuming 
task in case conventional maps and inventory data 
are used: 
- what is the total area of the dearings in the 
forest ? (Result: a map and a report) 
- What are the sites of lst quality ? (Result: 
a mcp) 
- What are total area of the working cirdes 
(Result: a mop and a report) 
-What are the annual growing stock and increment 
in each stard classes for tree specie black pine ? 
(Result: a report) 
- What is the annual growing stock and increment 
for working circle A ? (Result: a report) 
- What is the total area of reserved areas ? 
(Result: a map and a report) 
- What are the areas of each felling block ? 
(Result: a map und a report) 
6- Conclusions : 
Forest management activities handle with georela- 
tional, rather geographic data. Conventional maps 
and inventory data are not sufficient to meet all 
the forest management activities, if an optimiza- 
tion with parameters time, man power, money, 
productivity and envirunment protection are taken 
into account. While creating forest management 
plans, information required can be obtained from 
a forest management information system. Mapm and/ 
or reparts answering to custom queries covering 
defined forest area are to be created and 
presented, more accurately, more quickly, more 
rentable as compared with conventional methods. 
Thus, more realistic forest management plans 
can be prepared. Finally we want to conclude with 
Mr. Zonneveld's words: "The green dress of Mother 
Earth is alreadly severely damaged through the 
misuses of it. Her ever-increasing nakedness 
has already progressed so far that we, her children, 
should be ashamed of it (van Wijgarden, 1991)n 
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Altan, M.0., Toz, F.L., Can, Z., Tagtan, H., 1991. 
Database-and Geographic Information Systems in 
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pp.35-44. 
Baskerville, G.L., 1986. Understanding Forest 
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Eraslan, I. 1971, Forest Management (in turkish) 
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Esri, 1990. Understanding GIS, The Arc/Info 
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Jordan, G.A., Erdle, T.A. 1989 Forest Management 
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Rondeux, J., 1991. Management Information 
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Sarbanoglu, H., 1990. A Method for Information 
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Strobl, J., 1992. Comprehensive GIS support for 
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Tastan, H., 1991 Geographic Information Systems 
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