|
|
|
Recognition and modeling the natural resources of Isfahan Province by using GIS and RS
-
In pictures below we have specified specific items such as forest to plant,Renglands first class,Forest third class and Sand Dune
Natural Forest (F3)
Forest to plant(Haloxylon sp)
Renglands in West of Isfahan Province
- We have feature control of divided classes with GPS receiver and list of controlled points.In order to write the exact coordination of each place we waited a few minutes then we wrote it UTM and geografically.we estimated the type of vegetation according to defined classes in table top.Experienced experts helped us during the first stages of earth control and estimated of vegetation.
- laboratory operations
- After explanation and classification of vegetation,having final control and comparing the calssification of pictures to neighbouring pictures we used the geografical coordinates to make the results numerical by ArcView and PC Arc/Info software.
- After entering locus data and eliminating probable errors the polygon topology was created for the layer and finaly three new items were added to PAT,s tables:
- CLASS item which has a numerical type with 5 widths.
- LC_CODE item which has a characteristic type with 8 widths.
- SYMBOL item which has a numerical type with 5 widths.
We completed the PAT table of covered layer according to appointed covered layers,numbers and codes in tavle top.Because of the importance of this part of the project the produced information layers were controlled in on ArcView environment software.
- After eliminating probable errors and entering descriptive data of layers we provide a complete map of the area by using existing facilities in PC Arc/Info and ArcView software.
- By using the above softwares and the country,s divisions we provided the final natural resources map.This map was provided in size A0 and then it was delivered to related offices such as desert office,forest office and etc.
|
|
|