- Selcuk Journal of Agriculture and Food Sciences
- Vol: 20 Issue: 38
- Determination of Productivity Index (Pi) of Soils of Samsun- Bafra Plain Using Gis Technique
Determination of Productivity Index (Pi) of Soils of Samsun- Bafra Plain Using Gis Technique
Authors : Orhan Dengiz, Hesna Özcan
Pages : 136-142
View : 8 | Download : 14
Publication Date : 2006-04-25
Article Type : Research Article
Abstract :The aim of this research was determination of soil productivity index of Samsun-Bafra Plain by using GIS system. First of all land mapping units and some parameters that require for this method were determined from 1: 25.000 scale basic soil maps which were prepared before. After land productivity index (PI) taken into rating of soil criteria factories consideration was calculated by using square root formula, productivity classification was determined for each land mapping unit. According to the results, total study area is 79255.2 ha and 7 % (5547.8 ha) of this area is various land uses (water surface, coastal sandy area and settlement places etc.). While most of the study area’s soil productivity (62.4 %-5028.0 ha) consist of excellent and good classes (I and II) in terms of agricultural productivity, it was found that 9.0 % (7216.9 ha) of study area has moder-ate (III), 12.5 % (1010.5 ha) of it has poor (IV) and rest of its soil (9.1 %) has very poor (V). In addition that, some parame-terises that limit for using agricultural practises were determined and generated their maps. Furthermore soil database of the study area was formed using GIS techniqueKeywords : Verimlilik indeksi (PI), Coğrafi bilgi sistemi, Samsun-Bafra Ovası