Research articles (ORI): Recent submissions
Now showing items 141-160 of 262
-
Intersecting western and local knowledge: critical issues for development research in Africa
(Knowledge Globalization Institute, http://www.kglobal.org, 2012)Knowledge production, sharing and adaptation become beneficial when they enhance sustainable human development. Western and local knowledge are not mutually exclusive. In combination, local and western technologies may ... -
Agrarian reforms and the African green revolution
(Emerald, www.emeraldinsight.com, 2012)Agricultural intensification is central to the Green Revolution (GR) programme. This initiative, which dates back to early 1940s, revolves around the development of high yielding and disease resistant seed varieties that ... -
Responding to climate change through joint partnership: insights from the Okavango Delta in Botswana
(Emerald, www.emeraldinsight.com, 2014)Purpose: Climate change continues to pose a serious challenge to mankind. Given their socio-economic and vulnerable situations, resource-poor farmers will be hard hit and likely to be the most affected group in Africa – ... -
Ethno-meteorology and scientific weather forecasting: small farmers and scientists’ perspectives on climate variability in the Okavango Delta, Botswana
(Elsevier, http://www.elsevier.com/, 2014-09-03)Recent trends in abrupt weather changes continue to pose a challenge to agricultural production most especially in sub-Saharan Africa. The paper specifically addresses the questions on how local farmers read and predict ... -
Biomass production and economic value of Phragmites australis reedbeds in the Southern Okavango Delta, Botswana
(Global Science Books, www.globalsciencebooks.info, 2010-11-10)Most work globally on Phragmites spp. has been done in temperate northern hemisphere localities, where winter low temperatures and short day lengths cause a seasonal decrease in growth. In this study, we report above-ground ... -
Cultural resources as sustainabilty enablers: Community-Based Cultural Heritage Resources Management (COBACHREM) model
(MDPI, http://www.mdpi.com, 2013-12-20)People inhabit and change environments using socio-cultural and psycho-social behaviors and processes. People use their socio-cultural understanding of phenomena to interact with the environment. People are carriers of ... -
Assessing the impacts of fire on the vegetation resources that are available to the local communities of the seasonal wetlands of the Okavango, Botswana, in the context of different land uses and key government policies
(Wiley online library, onlinelibrary.wiley.com, 2009)The Okavango wetlands in north western Botswana are the most fire-prone environment in Botswana. Most of these fires are anthropogenic. The fires in this environment are thought to impact the environment negatively and ... -
Political economy of integrated soil fertility management in the Okavango Delta, Botswana
(World Academy of Science, Engineering and Technology, https://www.waset.org, 2013)Although many factors play a significant role in agricultural production and productivity, the importance of soil fertility cannot be underestimated. The extent to which small farmers are able to manage the fertility of ... -
Remotely sensed habitat indicators for predicting distribution of impala (Aepyceros melampus) in the Okavango Delta, Botswana
(Cambridge University Press, www.cambridge.org, 2006)We studied the spatial and temporal habitat use of impala in Botswana’s Okavango Delta at landscape level with the aid of satellite imagery, with minimal fieldwork. We related remotely sensed vegetation to impala habitat ... -
A laboratory assessment of the potential molluscicidal potency of Jatropha curcas aqueous extracts
(Taylor & Francis http://www.taylorandfrancis.com/, 2008)Preliminary laboratory studies were conducted to determine the molluscicidal potency of Jatropha curcas, the physic nut. Biomphalaria glabrata and Bulinus globosus snails were exposed to varying concentrations of aqueous ... -
Mechanisms for biosorption of chromium(III), copper(II) and mercury(II) using water extracts of Moringa oliefera seed powder
(Academic Journals, http://www.academicjournals.org/AJB, 2008)In continuation of our work on heavy metal remediation using Moringa seed powder, this study examines the mechanisms of metal sorption on water extracts of Moringa oleifera (MO) seed powder using extended X-ray absorption ... -
Species diversity of the Okavango Delta, Botswana
(Springer link, http://link.springer.com, 2006)In the Okavango Delta (about 28,000 km2) the number of identified species is 1,300 for plants, 71 for fish, 33 for amphibians, 64 for reptiles, 444 for birds, and 122 for mammals. The local occurrence of different species ... -
Water balance and infiltration in a seasonal floodplain in the Okavango Delta, Botswana
(Springer link, http://link.springer.com, 2006)Water balance in a seasonal floodplain in the Okavango Delta, Botswana was determined for three years (1997–1999). There was no surface outflow, and infiltration to ground water was very large (4.7–9.7 m during 90–175 days ... -
Flooding dynamics in a large low-gradient alluvial fan, the Okavango delta, Botswana, from analysis and interpretation of 30-year hydrometric record
(Hydrology and Earth Systems Sciences, www.hydrology-and-earth-system-sciences.net, 2006)The Okavango Delta is a flood-pulsed wetland, which supports a large tourism industry and the subsistence of the local population through the provision of ecosystem services. In order to obtain insight into the influence ... -
Access to water in gazetted and ungazetted rural settlements in Ngamiland, Botswana
(Elservier, www.elsevier.com, 2006)Lack of access to safe or improved water supply in developing countries is a major global concern, since water is a basic need for sustenance. Programmes aimed at improving access to safe water have been implemented in ... -
Scenarios of the impact of local and upstream changes in climate and water use on hydro-ecology in the Okavango Delta, Botswana
(Elservier, www.elsevier.com, 2006)Changes in hydrological inputs to the flood-pulsed Okavango Delta result in changes in such flooding characteristics as floodplain water depth, inundation duration and frequency. A mathematical model is used to assess ... -
Use of the geochemical and biological sedimentary record in establishing palaeo-environments and climate change in the Lake Ngami basin, NW Botswana
(Elservier, www.elsevier.com, 2006)Sediment samples from a continuous 4.6 m profile in the dry bed of Lake Ngami in NW Botswana were analysed for geochemistry and dated using both 14C and TL methods. Certain units in the profile were found to be diatom rich ... -
Communicating integrated water resources management: from global discourse to local practice - chronicling an experience from the Boteti river sub-basin, Botswana
(Elsevier, http://www.elsevier.com, 2008)The Boteti River is an ephemeral outflow of the Okavango River. It lies in the north-western part of Botswana where about 25,000 people reside across a number of widely scattered villages and informal settlements. The ... -
Water resources management in Botswana: balancing sustainability and economic development
(Springer, http://www.springer.com, 2006)Botswana is a rapidly developing country in southern Africa. Over the last three decades, diamond mining and tourism have provided double-digit rates of economic growth. Yet most of Botswana’s land is in the Kalahari desert ... -
Pathways of human sprawl in wilderness buffer zones
(Springer, http://www.springer.com, 2006)Intensification of human sprawl in buffer zones of globally important African wilderness areas is of worldwide concern. The paper identifies two major conflicting (yet potentially reconcilable) pathways of rural sprawl in ...