Badege Bishaw | Oregon State University (original) (raw)
Papers by Badege Bishaw
International Forestry Review, Mar 1, 2006
... of local populations and greater emphasis on environmental conservation and biodiversity, a c... more ... of local populations and greater emphasis on environmental conservation and biodiversity, a complex ... At one end, we have programmes that are based on traditional European education where industrial ... In few African countries the whole range of training levels from vocational ...
Agroforestry Systems
The seventeen manuscripts included in this Special Issue have been derived from temperate agrofor... more The seventeen manuscripts included in this Special Issue have been derived from temperate agroforestry research projects, outreach, and development. Papers were selected from temperate regions in North America, including the United States, Canada, and Mexico as well as manuscripts from subtropical systems in India. Overall, the conference papers addressed multidisciplinary topics in agroforestry including, accessing resources, accessing markets, managing risks, advances in technology applications, production science, environmental benefits, adoption, implementation, evaluation, education, outreach and community engagement, policy practice, climate change opportunities and challenges, and special forest products.
Riparian areas in the Pacific Northwest have traditionally been a source of natural resources suc... more Riparian areas in the Pacific Northwest have traditionally been a source of natural resources such as timber and grazing and for transportation corridors, and homesteads. A primary impact has been the removal of riparian trees, whose crowns and roots provide shade and stream bank protection. Increases in water temperature can be lethal to salmonid fish and decreasing salmon populations over the past few decades have resulted in an urgent need for improving the management of watersheds, fish habitat, and water quality. Leaving streamside buffers is now required by state forest practices regulations on forestlands, but no regulations are in place on agriculture lands where riparian trees have frequently been removed. In 1995, the Beaver Creek riparian buffer project was established to develop better information about how to establish riparian buffers on coastal pastureland near Newport, Oregon. No riparian trees were present. A replicated tree filter belt trial was established along t...
Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger,... more Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger, famine, and malnutrition and land degradation still linger and present the greatest threat to the survival of the nation. With the new thrust to produce more food using high input and single crop farming, today’s farmers grow only one or two crops in monoculture systems. The traditional diversification of farmlands, which arguably has been the source of sustenance in rural Ethiopia since time immemorial, has largely been abandoned. Furthermore, deforestation, accelerated soil erosion, and land degradation are now serious problems in Ethiopia. As a result crop and livestock yields are generally very low and the recent drought has aggravated the situation. The land use system is associated with the decrease in the size of holdings both for arable and grazing lands. Thus there is a continued trend toward the conversion of forested and marginal lands to agricultural lands, resulting in mass...
Information about effects of planted spacing on growth and development of western white pine is s... more Information about effects of planted spacing on growth and development of western white pine is scant because white pine blister rust disease has severely limited the survival of trees in young plantations. In the early 1980s, we established a western white pine spacing trial in the southern Cascades of Washington, using seedlings from a seedlot comprised primarily of open-pollinated seed from trees screened and certified as resistant to white pine blister rust. Initial square spacings ranged from 2 to 6 m; treatment plots were 0.4 ha in size and were replicated three times (six times for the 3 m spacing). Permanent measurement plots were installed at age 8, and the lower portion of all stems was pruned in the 10th growing season to reduce blister rust infections. The plots were remeasured at ages 11 and 16. Sixteen years after planting, survival averaged 80%; most mortality was associated with blister rust, but the rate of new infections and mortality diminished substantially between ages 11 and 16; 71% of the planted trees were free of blister rust at age 16. Trees averaged 8.4 m tall (ranging from 7.6 m in the 2 m spacing to 8.8 m in the 4 and 5 m spacings) and 12.7 cm dbh (10.3 in the 2 m spacing to 14.0 cm in the 5 m spacing). Periodic annual growth from 11 to 16 yr in the three wider spacings averaged 0.7 m in height and 1.0 cm in diameter. Antler rubbing by elk caused substantial damage to stems, but wounds on most trees were overgrown in 2 to 4 yr. Rub damage did not appear directly related to spacing but rather to stem diameter, with damage limited primarily to stems >6 and <15 cm. Early growth rates in this trial were much greater than those attained in older, natural stands (as inferred from site index curves and yield tables) and in progeny tests and other young silvicultural trials planted elsewhere. We believe rust-resistant stock of western white pine merits greater consideration for planting in the Douglas-fir region.
ABSTRACT Fourth of four presentations at this symposium. This symposium consists of presentations... more ABSTRACT Fourth of four presentations at this symposium. This symposium consists of presentations and discussions looking to the future of natural resources distance learning concepts. Key issues that will be discussed include: faculty development, technology roles - from remote imaging transmitted to the classroom to iPod lecture series and field assignments, credit transfer among Consortium members, faculty recruitment, funding course development, and innovation in course delivery. The epicenter of discussion is meeting the needs of students currently employed who cannot afford time or cost to relocate at a university campus to complete graduate courses or degree programs, meeting needs of natural resource agencies (federal, state and local), and future roles of professional societies (professional licensing and certifications). Among the futures issues will be presentations on meeting the needs of the agencies with hybrid (on-line and in the field) courses, Blended Learning (using multiple media technologies to teach a single lesson), and the new role of the employee’s career development system, e.g. DoILearn (Department of the Interior) and AgLearn (Department of Agriculture). Presenters will introduce issues the Consortium faces such as, developing and maintaining active course listings, common structure to on-line course listings, “what our students want, and what our agency clients want!”, “academic credits from accredited institutions”; understanding Learning and Content Management Systems with focus on knowledge, skills and abilities, and linkages between extension faculty and faculty in graduate programs. Presenters also will focus on the contemporary issues of faculty recruitment and development, linkages between the Land Grant/McIntire-Stennis natural resource colleges to the State Colleges, and private sector venders contracting to Federal and State agencies. The NRDL Consortium Policies and Procedures (draft) will be introduced. Consortium members: Virginia Tech, Stephen F. Austin State University, North Carolina State University, University of Tennessee – Martin, Oregon State University, Penn State University, University of Idaho, University of Montana, and Northern Arizona University.
Journal of Forestry, 2019
Affiliations: Sonia R. Bruck (sonia.bruck@oregonstate.edu) and Badege Bishaw (badege.bishaw@orego... more Affiliations: Sonia R. Bruck (sonia.bruck@oregonstate.edu) and Badege Bishaw (badege.bishaw@oregonstate.edu), Department of Forest Ecosystems and Society, Oregon State University, 3180 SW Jefferson Way, 208 Richardson Hall, Corvallis, OR 97330. Tamara L. Cushing (tamara.cushing@oregonstate.edu), Department of Forest Engineering, Resources, and Management, Oregon State University, 3180 SW Jefferson Way, 216 Richardson Hall, Corvallis, OR 97330. Frederick W. Cubbage (fred_cubbage@ncsu.edu), Department of Forestry and Environmental Resources North Carolina State University, Box 8008, 2800 Faucette Blvd, Raleigh, NC 27695.
Copyright: World Agroforestry (ICRAF) holds the copyright to its publications and web pages but e... more Copyright: World Agroforestry (ICRAF) holds the copyright to its publications and web pages but encourages reproduction, without alteration of these materials for non-commercial purposes. Acknowledgement of the source is required in all instances. Information owned by others that requires permission is marked as so. The information provided by ICRAF is, to the best of our knowledge accurate although we do not guarantee the information nor are we liable for any damages arising from the use of the information. Photos and illustrations: All images remain the sole property of their source and may not be used for any purpose without written permission of the source.
According to Uibrig (1989), lithosols and regosols cover more than 50 percent of the Basin and sh... more According to Uibrig (1989), lithosols and regosols cover more than 50 percent of the Basin and show the advanced stage of soil weathering through erosion. Càinbisols are good quality agricultural soils, and cover about 25 percent of the Basin. Fluvisols account for about 17 percent of the study area and are preferable for agricultural use. Vertisols, which are difficult to manage, prevail in a small area only (1 percent). Rendzina over limestone is considered a very productive soil and accounts for about 6.5 percent of the Basin. The soil reaction is about neutral with the exception of limestone areas where alkaline reaction occurs. 2.5. ECOLOGICAL ZONES AND LAND USE SYSTEMS The country has a wide range of agro-ecological zones reflecting the wide variation in rainfall (both quantity and distribution) temperature, altitude, topography and soils. According to the study made by Getahun (1978) and Constable (1985), three broad major agro-ecological zones are identified on the highland zones of Ethiopia (Fig. 4 and Table 1).
I would like to thank the World Agroforestry Center (ICRAF), Nairobi, Kenya, for providing funds ... more I would like to thank the World Agroforestry Center (ICRAF), Nairobi, Kenya, for providing funds through the USAID Linkage Project to initiate collaborative research, student and faculty exchange, and the exchange of scientific information between Oregon State University and the World Agroforestry Center. Also, Oregon State University, the Wondo Genet College of Forestry and Natural Resources, Hawassa University, Hawassa, Ethiopia, the Institute of Biodiversity Conservation (IBC), Addis Ababa, Ethiopia, and the Center for International Forestry Research (CIFOR), Addis Ababa, Ethiopia.
Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger,... more Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger, famine, and malnutrition and land degradation still linger and present the greatest threat to the survival of the nation. With the new thrust to produce more food using high input and single crop farming, today’s farmers grow only one or two crops in monoculture systems. The traditional diversification of farmlands, which arguably has been the source of sustenance in rural Ethiopia since time immemorial, has largely been abandoned. Furthermore, deforestation, accelerated soil erosion, and land degradation are now serious problems in Ethiopia. As a result crop and livestock yields are generally very low and the recent drought has aggravated the situation. The land use system is associated with the decrease in the size of holdings both for arable and grazing lands. Thus there is a continued trend toward the conversion of forested and marginal lands to agricultural lands, resulting in mass...
Riparian areas in the Pacific Northwest have traditionally been a source of natural resources, su... more Riparian areas in the Pacific Northwest have traditionally been a source of natural resources, such as timber and grazing, and have been used as transportation corridors and homestead sites. A primary impact of use has been the removal of riparian trees, the crowns and roots of which provide shade and stream bank protection. Increases in water temperature can be lethal to salmonid fish, and decreasing salmon populations over the past few decades have resulted in an urgent need for improving the management of watersheds, fish habitat, and water quality. Leaving stream-side buffers is now required by state forest practices regulations on forest lands, but no regulations are in place on agricultural lands, where riparian trees have frequently been removed. In 1995, the Beaver Creek Riparian Buffer Project was established to develop better information about how to establish riparian buffers on coastal pastureland near Newport, Oregon. No riparian trees were present when the trial was be...
International Forestry Review, Mar 1, 2006
... of local populations and greater emphasis on environmental conservation and biodiversity, a c... more ... of local populations and greater emphasis on environmental conservation and biodiversity, a complex ... At one end, we have programmes that are based on traditional European education where industrial ... In few African countries the whole range of training levels from vocational ...
Agroforestry Systems
The seventeen manuscripts included in this Special Issue have been derived from temperate agrofor... more The seventeen manuscripts included in this Special Issue have been derived from temperate agroforestry research projects, outreach, and development. Papers were selected from temperate regions in North America, including the United States, Canada, and Mexico as well as manuscripts from subtropical systems in India. Overall, the conference papers addressed multidisciplinary topics in agroforestry including, accessing resources, accessing markets, managing risks, advances in technology applications, production science, environmental benefits, adoption, implementation, evaluation, education, outreach and community engagement, policy practice, climate change opportunities and challenges, and special forest products.
Riparian areas in the Pacific Northwest have traditionally been a source of natural resources suc... more Riparian areas in the Pacific Northwest have traditionally been a source of natural resources such as timber and grazing and for transportation corridors, and homesteads. A primary impact has been the removal of riparian trees, whose crowns and roots provide shade and stream bank protection. Increases in water temperature can be lethal to salmonid fish and decreasing salmon populations over the past few decades have resulted in an urgent need for improving the management of watersheds, fish habitat, and water quality. Leaving streamside buffers is now required by state forest practices regulations on forestlands, but no regulations are in place on agriculture lands where riparian trees have frequently been removed. In 1995, the Beaver Creek riparian buffer project was established to develop better information about how to establish riparian buffers on coastal pastureland near Newport, Oregon. No riparian trees were present. A replicated tree filter belt trial was established along t...
Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger,... more Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger, famine, and malnutrition and land degradation still linger and present the greatest threat to the survival of the nation. With the new thrust to produce more food using high input and single crop farming, today’s farmers grow only one or two crops in monoculture systems. The traditional diversification of farmlands, which arguably has been the source of sustenance in rural Ethiopia since time immemorial, has largely been abandoned. Furthermore, deforestation, accelerated soil erosion, and land degradation are now serious problems in Ethiopia. As a result crop and livestock yields are generally very low and the recent drought has aggravated the situation. The land use system is associated with the decrease in the size of holdings both for arable and grazing lands. Thus there is a continued trend toward the conversion of forested and marginal lands to agricultural lands, resulting in mass...
Information about effects of planted spacing on growth and development of western white pine is s... more Information about effects of planted spacing on growth and development of western white pine is scant because white pine blister rust disease has severely limited the survival of trees in young plantations. In the early 1980s, we established a western white pine spacing trial in the southern Cascades of Washington, using seedlings from a seedlot comprised primarily of open-pollinated seed from trees screened and certified as resistant to white pine blister rust. Initial square spacings ranged from 2 to 6 m; treatment plots were 0.4 ha in size and were replicated three times (six times for the 3 m spacing). Permanent measurement plots were installed at age 8, and the lower portion of all stems was pruned in the 10th growing season to reduce blister rust infections. The plots were remeasured at ages 11 and 16. Sixteen years after planting, survival averaged 80%; most mortality was associated with blister rust, but the rate of new infections and mortality diminished substantially between ages 11 and 16; 71% of the planted trees were free of blister rust at age 16. Trees averaged 8.4 m tall (ranging from 7.6 m in the 2 m spacing to 8.8 m in the 4 and 5 m spacings) and 12.7 cm dbh (10.3 in the 2 m spacing to 14.0 cm in the 5 m spacing). Periodic annual growth from 11 to 16 yr in the three wider spacings averaged 0.7 m in height and 1.0 cm in diameter. Antler rubbing by elk caused substantial damage to stems, but wounds on most trees were overgrown in 2 to 4 yr. Rub damage did not appear directly related to spacing but rather to stem diameter, with damage limited primarily to stems >6 and <15 cm. Early growth rates in this trial were much greater than those attained in older, natural stands (as inferred from site index curves and yield tables) and in progeny tests and other young silvicultural trials planted elsewhere. We believe rust-resistant stock of western white pine merits greater consideration for planting in the Douglas-fir region.
ABSTRACT Fourth of four presentations at this symposium. This symposium consists of presentations... more ABSTRACT Fourth of four presentations at this symposium. This symposium consists of presentations and discussions looking to the future of natural resources distance learning concepts. Key issues that will be discussed include: faculty development, technology roles - from remote imaging transmitted to the classroom to iPod lecture series and field assignments, credit transfer among Consortium members, faculty recruitment, funding course development, and innovation in course delivery. The epicenter of discussion is meeting the needs of students currently employed who cannot afford time or cost to relocate at a university campus to complete graduate courses or degree programs, meeting needs of natural resource agencies (federal, state and local), and future roles of professional societies (professional licensing and certifications). Among the futures issues will be presentations on meeting the needs of the agencies with hybrid (on-line and in the field) courses, Blended Learning (using multiple media technologies to teach a single lesson), and the new role of the employee’s career development system, e.g. DoILearn (Department of the Interior) and AgLearn (Department of Agriculture). Presenters will introduce issues the Consortium faces such as, developing and maintaining active course listings, common structure to on-line course listings, “what our students want, and what our agency clients want!”, “academic credits from accredited institutions”; understanding Learning and Content Management Systems with focus on knowledge, skills and abilities, and linkages between extension faculty and faculty in graduate programs. Presenters also will focus on the contemporary issues of faculty recruitment and development, linkages between the Land Grant/McIntire-Stennis natural resource colleges to the State Colleges, and private sector venders contracting to Federal and State agencies. The NRDL Consortium Policies and Procedures (draft) will be introduced. Consortium members: Virginia Tech, Stephen F. Austin State University, North Carolina State University, University of Tennessee – Martin, Oregon State University, Penn State University, University of Idaho, University of Montana, and Northern Arizona University.
Journal of Forestry, 2019
Affiliations: Sonia R. Bruck (sonia.bruck@oregonstate.edu) and Badege Bishaw (badege.bishaw@orego... more Affiliations: Sonia R. Bruck (sonia.bruck@oregonstate.edu) and Badege Bishaw (badege.bishaw@oregonstate.edu), Department of Forest Ecosystems and Society, Oregon State University, 3180 SW Jefferson Way, 208 Richardson Hall, Corvallis, OR 97330. Tamara L. Cushing (tamara.cushing@oregonstate.edu), Department of Forest Engineering, Resources, and Management, Oregon State University, 3180 SW Jefferson Way, 216 Richardson Hall, Corvallis, OR 97330. Frederick W. Cubbage (fred_cubbage@ncsu.edu), Department of Forestry and Environmental Resources North Carolina State University, Box 8008, 2800 Faucette Blvd, Raleigh, NC 27695.
Copyright: World Agroforestry (ICRAF) holds the copyright to its publications and web pages but e... more Copyright: World Agroforestry (ICRAF) holds the copyright to its publications and web pages but encourages reproduction, without alteration of these materials for non-commercial purposes. Acknowledgement of the source is required in all instances. Information owned by others that requires permission is marked as so. The information provided by ICRAF is, to the best of our knowledge accurate although we do not guarantee the information nor are we liable for any damages arising from the use of the information. Photos and illustrations: All images remain the sole property of their source and may not be used for any purpose without written permission of the source.
According to Uibrig (1989), lithosols and regosols cover more than 50 percent of the Basin and sh... more According to Uibrig (1989), lithosols and regosols cover more than 50 percent of the Basin and show the advanced stage of soil weathering through erosion. Càinbisols are good quality agricultural soils, and cover about 25 percent of the Basin. Fluvisols account for about 17 percent of the study area and are preferable for agricultural use. Vertisols, which are difficult to manage, prevail in a small area only (1 percent). Rendzina over limestone is considered a very productive soil and accounts for about 6.5 percent of the Basin. The soil reaction is about neutral with the exception of limestone areas where alkaline reaction occurs. 2.5. ECOLOGICAL ZONES AND LAND USE SYSTEMS The country has a wide range of agro-ecological zones reflecting the wide variation in rainfall (both quantity and distribution) temperature, altitude, topography and soils. According to the study made by Getahun (1978) and Constable (1985), three broad major agro-ecological zones are identified on the highland zones of Ethiopia (Fig. 4 and Table 1).
I would like to thank the World Agroforestry Center (ICRAF), Nairobi, Kenya, for providing funds ... more I would like to thank the World Agroforestry Center (ICRAF), Nairobi, Kenya, for providing funds through the USAID Linkage Project to initiate collaborative research, student and faculty exchange, and the exchange of scientific information between Oregon State University and the World Agroforestry Center. Also, Oregon State University, the Wondo Genet College of Forestry and Natural Resources, Hawassa University, Hawassa, Ethiopia, the Institute of Biodiversity Conservation (IBC), Addis Ababa, Ethiopia, and the Center for International Forestry Research (CIFOR), Addis Ababa, Ethiopia.
Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger,... more Despite the efforts made to develop Ethiopian agriculture over the years, the problems of hunger, famine, and malnutrition and land degradation still linger and present the greatest threat to the survival of the nation. With the new thrust to produce more food using high input and single crop farming, today’s farmers grow only one or two crops in monoculture systems. The traditional diversification of farmlands, which arguably has been the source of sustenance in rural Ethiopia since time immemorial, has largely been abandoned. Furthermore, deforestation, accelerated soil erosion, and land degradation are now serious problems in Ethiopia. As a result crop and livestock yields are generally very low and the recent drought has aggravated the situation. The land use system is associated with the decrease in the size of holdings both for arable and grazing lands. Thus there is a continued trend toward the conversion of forested and marginal lands to agricultural lands, resulting in mass...
Riparian areas in the Pacific Northwest have traditionally been a source of natural resources, su... more Riparian areas in the Pacific Northwest have traditionally been a source of natural resources, such as timber and grazing, and have been used as transportation corridors and homestead sites. A primary impact of use has been the removal of riparian trees, the crowns and roots of which provide shade and stream bank protection. Increases in water temperature can be lethal to salmonid fish, and decreasing salmon populations over the past few decades have resulted in an urgent need for improving the management of watersheds, fish habitat, and water quality. Leaving stream-side buffers is now required by state forest practices regulations on forest lands, but no regulations are in place on agricultural lands, where riparian trees have frequently been removed. In 1995, the Beaver Creek Riparian Buffer Project was established to develop better information about how to establish riparian buffers on coastal pastureland near Newport, Oregon. No riparian trees were present when the trial was be...