Environmental Science: Recent submissions
Now showing items 21-40 of 65
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Intergenerational bargaining and wealth flows in the era of HIV/AIDS: emerging trends in Old Naledi-Gaborone, Botswana
(Taylor & Francis (Routledge), http://jir.ucsur.pitt.edu/, 2008)Based on the intergenerational wealth flows conceptual framework, this paper investigates how the AIDS pandemic threatens to disrupt the transfer of resources between generations by using a typical low income urban area ... -
Analysis of persistence soil nutrient statusin abandoned cattle kraals in a semi arid area of Botswana
(Academic Journals, http://www.academicjournals.org, 2011-12-04)The aim of this study was to analyze the depletion of soil nutrients with time on abandoned kraals in a peri-urban area of Botswana. Active kraals are enriched with nutrients through the accumulation of animal droppings ... -
Comparative assessment of water infiltration of soils under different tillage systems in eastern Botswana
(Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2009)Water infiltration is an important component of water balance for improving crop production potential in dryland soil tillage systems in Botswana, particularly in the eastern region. Hardsetting soils common in arable ... -
Use of neutron probe and tensiometry techniques in determining water characteristics of the two soil types
(University of Botswana, Faculty of engineering and technology, http://www.ajol.info/index.php/bjt/index, 2008)Characterisation of soil water, in particular water flow dynamics is fundamental in assessing the environmental implications to soil management. Soil water characterisation was assessed by measuring soil water content and ... -
Chicken manure-enhanced soil fertility and productivity: effects of application rates
(Academic Journals, http://www.academicjournals.org/JSSEM, 2010-05)The utilization of chicken manure as an organic fertilizer is essential in improving soil productivity and crop production. We carried out the study to assess the effects of chicken manure on soil chemical properties and ... -
Comparative effects of secondary treated waste water irrigation on soil quality parameters under different crop types
(Global Science Books, http://www.globalsciencebooks.info/Journals/AJPSB.html, 2011)This study compares soil quality parameters, and salinity and heavy metal levels in soils cultivated with different crops under secondary treated wastewater irrigation in the Glen Valley, near Gaborone City, Botswana. The ... -
Soil resources distribution, woody plant properties and land use in a lunette dune-pan system in Kalahari, Botswana
(Academic Journals, http://www.academicjournals.org/SRE, 2008)The distribution of selected soil properties, selected woody vegetation properties, and land use in a lunette dune-pan system were investigated in the Sekoma area, which is located within the IGBP Kalahari Transect (KT) ... -
Natural attenuation of mining pollutants in the transboundary Save River
(Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2011)The objective of the study was to investigate the role played by the natural environment in protecting the transboundary Save River from the impacts of metals derived from phosphate mining at Dorowa. The study is a follow ... -
Localized wood resource depletion in Botswana: Towards a demographic, institutional and cosmovisional explanation
(Taylor & Francis Ltd, http://www.tandf.co.uk/journals/cepe, 2002)In sub-Saharan Africa, communal land resource utilization and management has reflected changes in sociocultural belief systems, population dynamics, and modes of societal administration and regulation. This paper, based ... -
Energy sector policies in Botswana and their implications for global climate change
(Kluwer Academic Publishers, http://www.springerlink.com/content/102895/, 2002)Like most African countries, Botswana contributes almost insignificantly to global greenhouse emissions (GHGs). In this context, some have argued that energy policy and legislative measures to regulate emissions in Botswana ... -
Towards a theoretical exploration of the differential urbanisation model in Sub-saharan Africa: The Botswana case
(Blackwell Publishing Ltd, http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1467-9663, 2006)This paper investigates the extent to which the differential urbanisation model is applicable to Botswana by using empirical data obtained from periodic censuses, supportive documentary information and observations from ... -
Mineralogical appraisal of sediments of duricrust suites and pans around Jwaneng area, Botswana
(Bioline http://www.bioline.org, 2007)A mineralogical investigation of duricrust suites in Letlhakeng valley, and five pans around Jwaneng in Botswana was undertaken in order to know the mineral assemblages and infer on their landscape formation. In Letlhakeng, ... -
Characterization of agriculture-related land degradation in eastern and western parts of Botswana
(University of Botswana, http://www.ub.bw, 2005-04)A study was carried out during 1998-2001 with the objective of, firstly, assessing the impact of cultivation on soil quality, and secondly, evaluating the effects of human and animal activities on soil erosion and range ... -
Nitrogen cycling in the soil–plant system along a precipitation gradient in the Kalahari sands
(Blackwell Publishing, 2004-01-01)Nitrogen (N) cycling was analyzed in the Kalahari region of southern Africa, where a strong precipitation gradient (from 978 to 230mm mean annual precipitation) is the main variable affecting vegetation. The region is ... -
Vulnerability of traditional beef sector to drought and the challenges of climate change: the case of Kgatleng District, Botswana
(Academic journals http://hdl/handle.net/10289/973, 2008)Cattle’s rearing in Botswana is undertaken in two sectors: the communal and commercial. The communal sector is exclusively free range and therefore depends on biomass production. This makes the systems highly susceptible ... -
Environmental problems among low income urban residents: an empirical analysis of old Naledi-Gaborone, Botswana
(Pergamon, www.elsevier.com/locate/habitatint, 2003)This study investigates the profile, dynamics and dimensions ofenvironm ental problems at Old Naledi, a low income urban neighbourhood in Gaborone, the capital city ofBotsw ana. It is based on documentary and field ... -
Urban water scarcity management: civic vs. state response in Bulawayo
(Pergamon, www.elsevier.com/locate/habitatint, 2002)In most sub-Sahara African cities, rapid urbanization has placed a heavy burden on available human, financial and socioeconomic resources. The problem has been compounded by the intricate and interactive effects of rapid ... -
Decrease in hydraulic conductivity in saturated soil columns and particle release associated with self-filtration in saturated soil columns
(Elsevier http://www.linkinghub.elsevier.com/retrieve/pii/S0016706108001365, 2008)The dynamics of the process of self-filtration in soil columns have been evaluated for two soils with different structural cohesion (Balkuling agricultural soil and a mining residue) by carrying out experiments focusing on ... -
Using a pore-scale model to quantify the effect of particle re-arrangement on pore structure and hydraulic properties
(Wiley http://www.interscience.doi.wiley.com/10.1002/hyp.6299, 2008)A pore-scale model based on measured particle size distributions has been used to quantify the changes in pore space geometry of packed soil columns resulting from a dilution in electrolyte concentration from 500 to 1 ... -
Contending with unequal and privileged access to natural resources and land in the Okavango Delta, Botswana
(Blackwell http://www.wiley.com/10.1111/j.1467-9493.2008.00332.x, 2008)This paper reviews how state policy and regulatory instruments, including protected area alienations and concessions, have altered or denied the access to land and natural livelihood resources of the indigenous Basarwa ...