Access the full text.
Sign up today, get DeepDyve free for 14 days.
(1989)
Forest inventory and management planning in the fuelwood plantations of Ethiopia
M. Poore, C. Fries (1985)
The ecological effects of eucalyptus
M. Khybri, R. Gupta, S. Ram, H. Tomar (1992)
Crop yields of rice and wheat grown in rotation as intercrops with three tree species in the outer hills of Western HimalayaAgroforestry Systems, 17
(1999)
Effects of land preparation methods on runoff and soil loss on Vertisols at Ginchi Ethiopia
I. Verinumbe (1987)
Crop production on soil under some forest plantations in the SahelAgroforestry Systems, 5
A. Michelsen, N. Lisanework, I. Friis (1993)
Impacts of tree plantations in the Ethiopian highland on soil fertility, shoot and root growth, nutrient utilisation and mycorrhizal colonisationForest Ecology and Management, 61
C. Ong, C. Black, F. Marshall, J. Corlett (1996)
Principles of resource capture and utilization of light and water
R. Malik, S. Sharma (1990)
Moisture extraction and crop yield as a function of distance from a row of Eucalyptus tereticornisAgroforestry Systems, 12
M. Noordwijk, G. Lawson, A. Soumare, J. Groot, K. Hairiah (1996)
Root distribution of trees and crops: competition and/or complementarity
Williamsc., R. Black, C. (2013)
The Effect of Timing of Shade on Development, Dry Matter Production and Light-Use Efficiency in Groundnut (Aruchis hypogaea L.) under Field Conditions
Wang Shiji (2004)
A brief account of professional education and training in agroforestry in ChinaAgroforestry Systems, 12
S. Jutzi, I. Haque, J. McIntire, Joanne Stares (1988)
Management of Vertisols in sub-Saharan Africa. Proceedings of a conference
(1988)
Classification and management related properties of Vertisols
(1965)
Water availability.. In: CA Black eds
(1993)
Ethiopian forestry action program: Final report
A. Klute (1986)
Physical and mineralogical methods
(1991)
A microcomputer program for the design, management and analysis of agronomic research experiments
M. Rao, R. Coe (1991)
Measuring crop yields in on-farm agroforestry studiesAgroforestry Systems, 15
D. Cassels, J. Bojo (1995)
Land degradation and rehabilitation in Ethiopia: a reassessment
L. Onyewotu, M. Ogigirigi, C. Stigter (1994)
A study of competitive effects between a Eucalyptus camaldulensis shelterbelt and an adjacent millet (Pennisetum typhoides) cropAgriculture, Ecosystems & Environment, 51
Y. Zohar (1985)
Root distribution of a eucalypt shelterbeltForest Ecology and Management, 12
V. Pohjonen, T. Pukkala (1990)
Eucalyptus globulus in Ethiopian forestryForest Ecology and Management, 36
N. Lisanework, A. Michelsen (2004)
Allelopathy in agroforestry systems: the effects of leaf extracts ofCupressus lusitanica and threeEucalyptus spp. on four Ethiopian cropsAgroforestry Systems, 21
G. Ayele, T. Mamo (1995)
Determinants of demand for fertilizer in vertisol cropping systems in EthiopiaTropical Agriculture, 72
(1990)
Workshop Report on Human Population Dynamics and Resource Demand; 30 Nov
In recent years, Eucalyptus globulus planted along field boundaries has come to dominate the central highland landscape of Ethiopia. Although evidence is scanty, there is a perception that this practice adversely affects crop productivity. An on-farm trial was conducted on Pellic Vertisol at Ginchi to determine the production potential of eucalypt boundaries and their effect on the productivity of adjacent crops of tef ( Eragrostis tef ) and wheat ( Triticum sp.). The experiment comprised three stand ages, four field aspects and six distances from the tree-crop interface, using a split-split plot design with three replicates. Wood production rates ranged between 168 kg ha −1 y −1 (four years old) and 2901 kg ha −1 y −1 (twelve years). Thus eucalypt boundaries planted on a hectare of land would satisfy 50 to 75% of the annual biomass energy requirement of a rural household of five persons. Significant depression of tef and wheat yields occurred over the first 12m from the tree line: the reduction was 20 to 73% for tef and 20 to 51% for wheat, equivalent to yield losses of 4.4 to 26% and 4.5 to 10% per hectare respectively. Nevertheless, in financial terms, the tree component adequately compensated for crop yield reduction and even generated additional income. Therefore, eucalypt boundaries have great potential to satisfy the rising demand for wood, without requiring a major change in land use on the highland Vertisols. The greater availability of wood will reduce the demand for dung and crop residues for fuel, and thus may contribute to improved soil management on croplands while relieving the increasing pressure on indigenous forest and woodlands.
Agroforestry Systems – Springer Journals
Published: Jun 1, 2005
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.