Determination of Productivity Index (Pi) of Soils of Samsun- Bafra Plain Using Gis Technique

Authors : Orhan DENGİZ, Hesna ÖZCAN

Pages : 136-142

View : 19 | Download : 27

Publication Date : 2006-04-25

Article Type : Research Paper

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 insert ignore into journalissuearticles values(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 % insert ignore into journalissuearticles values(5547.8 ha); of this area is various land uses insert ignore into journalissuearticles values(water surface, coastal sandy area and settlement places etc.);. While most of the study area’s soil productivity insert ignore into journalissuearticles values(62.4 %-5028.0 ha); consist of excellent and good classes insert ignore into journalissuearticles values(I and II); in terms of agricultural productivity, it was found that 9.0 % insert ignore into journalissuearticles values(7216.9 ha); of study area has moder-ate insert ignore into journalissuearticles values(III);, 12.5 % insert ignore into journalissuearticles values(1010.5 ha); of it has poor insert ignore into journalissuearticles values(IV); and rest of its soil insert ignore into journalissuearticles values(9.1 %); has very poor insert ignore into journalissuearticles values(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 technique
Keywords : Verimlilik indeksi PI, Coğrafi bilgi sistemi, Samsun Bafra Ovası