Eco-hydrological impacts of Eucalyptus in the semi humid Ethiopian Highlands: the Lake Tana Plain

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Title:Eco-hydrological impacts of Eucalyptus in the semi humid Ethiopian Highlands: the Lake Tana Plain
Creators:
Chanie, Tilashwork; Cornell University Master’s Program in Integrated Watershed Management and Hydrology Cornell University at Bahir Dar. Currently at: Amhara Regional Agricultural Research Institute Debre Berhan, Ethiopia.
Collick, Amy S.; Amy dot Collick at ars dot usda dot gov; Pasture Systems and Watershed Management Research Unit, Agricultural Research Service, USDA, University Park, Pennsylvania,
Adgo, Enyew; Faculty of Agriculture, University of Bahir Dar, Bahir Dar, Ethiopia.
Lehmann, C. Johannes; Department of Crop and Soil Sciences, Cornell University, Ithaca, NY, 14853, USA.
Steenhuis, Tammo S.; Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA, and Department of Civil and Water Resources Engineering, Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 61, 1, pp. 21-29
Uncontrolled Keywords:Eucalyptus, Soil water repellency, Croton machrostachyus, Koga watershed

Abstract

Eucalyptus is the tree of choice for wood production by farmers in Ethiopia. Although there are many claims about its harmful effect on ecology and water availability, little actual research exists. The main objective of this study was, therefore, to study the extent of harm of Eucalyptus on the ecosystem. This study was conducted at the Koga Watershed near Lake Tana in Ethiopia. Twenty-five farmers were interviewed and a field experiment with three replications was carried out to quantify the effect of Eucalyptus on various soil physical and chemical properties and maize crop measurements and to compare bulk density, soil moisture contents, maize crop counts and shading effects in fields bordered by Eucalyptus and Croton macrostachyus. Our results show that Eucalyptus decreased both soil nutrients and maize yields within 20 m of the trees. Although moisture content was not affected during the monsoon, it decreased faster within 30 m of the Eucalyptus trees than elsewhere. Soils become water repellent, too. Local farmers’ perception agreed with our experimental findings and indicated that Eucalyptus trees are exhausting the once productive land. They also reported that Eucalyptus dries up springs. Despite this, the growers insist on planting Eucalyptus because of its cash income.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Eco-hydrological impacts of Eucalyptus in the semi humid Ethiopian Highlands: the Lake Tana Plain
Translated title:Eco-hydrological impacts of Eucalyptus in the semi humid Ethiopian Highlands: the Lake Tana Plain
Creators:
Chanie, Tilashwork; Cornell University Master’s Program in Integrated Watershed Management and Hydrology Cornell University at Bahir Dar. Currently at: Amhara Regional Agricultural Research Institute Debre Berhan, Ethiopia.
Collick, Amy S.; Amy dot Collick at ars dot usda dot gov; Pasture Systems and Watershed Management Research Unit, Agricultural Research Service, USDA, University Park, Pennsylvania,
Adgo, Enyew; Faculty of Agriculture, University of Bahir Dar, Bahir Dar, Ethiopia.
Lehmann, C. Johannes; Department of Crop and Soil Sciences, Cornell University, Ithaca, NY, 14853, USA.
Steenhuis, Tammo S.; Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA, and Department of Civil and Water Resources Engineering, Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia.
Uncontrolled Keywords:Eucalyptus, Soil water repellency, Croton machrostachyus, Koga watershed
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:61
Number:1
Page Range:pp. 21-29
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:7665
Item Type:Article
Deposited On:26 Mar 2013 15:39
Last Modified:26 Mar 2013 14:39

Citation

Chanie, Tilashwork; Collick, Amy S.; Adgo, Enyew; Lehmann, C. Johannes; Steenhuis, Tammo S. (2013) Eco-hydrological impacts of Eucalyptus in the semi humid Ethiopian Highlands: the Lake Tana Plain. Journal of Hydrology and Hydromechanics, 61 (1). pp. 21-29. ISSN 0042-790X

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