AAU-ETD AAU-ETD
 

Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
Faculty of Science >
Thesis - Earth Sciences >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1661

Title: IRRIGATION POTENTIAL EVALUATION AND CROP SUITABILITY ANALYSIS USING GIS AND REMOTE SENSING TECHNIQUE IN BELES SUB BASIN, BENESHANGUL GUMEZ REGION.
Authors: HAILEGEBRIEL, SHIFERAW
Advisors: Dr. Syed Ahmad Ali
Copyright: 2007
Date Added: 12-Dec-2008
Publisher: Addis Ababa University
Abstract: The study aims at evaluation of land use suitability for surface irrigation by using GIS. The evaluation of land in terms of the suitability classes was based on the method as described in FAO guideline for land evaluation. Multi-criteria decision evaluation method was used to evaluate the physical land characteristics of the study area for surface irrigation. There are techniques, which were used to weight and standardized the factors, which are used to evaluate the land in the study area. These include pairwise combination and weighted linear combination. The factors that were considered for evaluation of the land for surface irrigation is slope, soil drainage, soil texture, soil depth, soil type and land use. After evaluating the physical land capability for surface irrigation, irrigation suitability map was developed. This map was classified in to five suitability classes based on FAO guideline. The result that obtained are 41,650 ha (26.9%) very suitable, 24,100 ha (15.6%) suitable, 44,350 ha (28.7%) marginally suitable, 11,000ha (7.3%) marginally not suitable and 33, 2500ha (21.5%) permanently not suitable. The land in the study area was evaluated for suitability of crops. Temperature and rainfall amount of the study area were the factors in addition to the factors mentioned above used for surface irrigation evaluation. Maize and Cotton were selected to evaluate the land of the Beles sub Basin. Suitability maps for both maize and cotton were developed. The suitability crops maps were classified in to five suitability classes. Regarding maize 12,450ha (8.2%) very suitable, 23,140ha (14.9%) suitable, 54,600ha (35.3%) marginally suitable, 16,200ha (10.6%) marginally not suitable and 46,130ha (30.4%) permanently not suitable of the total Beles Sub basin. Suitability classes for Cotton were16, 150ha (10.7%) very suitable, 22,540ha (15.1%) suitable, 49,020ha (32.6%) marginally, 17,200ha (11.5%) marginally not suitable and 46,130ha (30.1%) permanently not suitable
Description: ADDIS ABABA UNIVERSITY SCHOOL OF GRADUATE STUDIES DEPARTMENT OF EARTH SCIENCES IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE DEGREE OF MASTER OF SCIENCE IN GEOGRAPHIC INFORMATION SYSTEMS AND REMOTE SENSING
URI: http://hdl.handle.net/123456789/1662
Appears in:Thesis - Earth Sciences
Thesis - Earth Sciences

Files in This Item:

File Description SizeFormat
HAILEGEBRIEL SHIFERAW.pdf6.22 MBAdobe PDFView/Open

Items in the AAUL Digital Library are protected by copyright, with all rights reserved, unless otherwise indicated.

 

  Last updated: May 2010. Copyright © Addis Ababa University Libraries - Feedback