Introduction
The GIS software arc info and arc view are used to create soil database attribute data of soils can be depth, texture, pH, drainage, salinity, alkalinity conditions, run off, erosion, nutrient availability etc. Attribute data linked with spatial data hence linking special information with non spatial information from soil model. Through soil models thematic Maps could be easily generated. Sharing and spreading information is easier when information is stored in digital form. Soil survey data can be made use of in the development of agriculture, irrigation purposes, forestry, several engineering purposes and so on. Land capabilities, soil irritability and soil suitability classifications are made based on soil survey interpretation. Based on interpretation potentialities limitations of soils can be obtained and such information are used to construct database using GIS. The soil map is obtained from soil survey report is digitized. A database using arc info in formed. Each Polygon is digitized map represent classes of soil family and soil associations.
Advantages of GIS
Some of the merits of GIS in soil database generation and management are:-
1. Digital database has developed.
2. Date accuracy.
3. Maintains consistency.
4. Easy to update.
5. Large volume of information can be analyzed.
6. Quick data updating retrieval.
7. Map generation is quicker and cheaper process.
8. Visual effects are better.
9. Manpower minimization while map production.
10. Systematic query search.
11. Interactive mapping
12. Create 3D map.
13. Large scale data integration.
14. Modelling is more effective.
15. Compatibility with GPS and SIS Technologies
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