AAU-ETD AAU-ETD
 

Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
Faculty of Medicine >
Thesis - Anaesthesiology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/229

Title: LAND DEGRADATION ASSESSMENT AT IDRIS RESETTLEMENT SCHEME, KAFTA HUMERA WOREDA, WESTERN ZONE OF TIGRAY, ETHIOPIA
Authors: HAILE, FESSEHA
Advisors: Dr Fisseha Itana
Dr Mitiku Haile
Copyright: 2007
Date Added: 13-Nov-2007
Publisher: Addis Ababa University
Abstract: The major objective of resettlement program is mainly to reduce environmental degradation in areas of origin by transferring drought affected people to more fertile and less populated for increased food production and subsistence farming. Based on the assessment made for this study farmers have confirmed that the good agricultural, pastureland, and relative amount of rainfall in these areas have been able to attract the population to settle in the study area. This thesis aims to: i) identify major causes and indicators of land degradation, ii) assess the extent of land degradation in the resettlement scheme and iii) suggest plausible conservation measures to mitigate land degradation in the study area. The study was conducted in Idris resettlement scheme, which is located in western zone of Tigray. The results showed that the major causes of land degradation were deforestation, poor agricultural practices and poor livestock management. One important indicator of land degradation was the growth of weed striga, which thrives, in infertile soils. Soil samples taken from three land use types namely cultivated, grazing and forestland were analyzed for organic matter, total nitrogen, available phosphorous, pH, EC, bulk density and soil texture. Employing the scientific rating, the OM, total N, and available P content of all soil samples of the three land use types were found to be low. There was no significant variation in organic matter content for both soil depths. Significant difference in total nitrogen content was observed at 0-10 cm soil depth. Available P content was found to be significant at both soil depths. Bulk density was found to be higher on grazing land at both soil depths. Bulk density was found to be significantly different at both soil depths. pH values of the land use type ranges from medium alkaline to medium acidic. EC values test revealed that the mean value for all sample soils in all land use types was 1.3 mmhos/cm, which was classified to be non-saline. Textural classification of soil samples for grazing land and forestland was sand clay while that of cultivated land was sand clay loam.
Description: THESIS SUBMITTED TO SCHOOL OF GRADUATE STUDIES OF ADDIS ABABA UNIVERSITY, IN PARTIAL FULFILLMENT OF MASTERS DEGREE IN ENVIRONMENTAL SCIENCE
URI: http://hdl.handle.net/123456789/229
Appears in:Thesis - Environmental Sciences

Files in This Item:

File Description SizeFormat
Haile Fesseha.pdf233.1 kBAdobe 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