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Now showing items 31-40 of 91
Groundwater fluoride levels in villages of Southern Malawi and removal studies using bauxite
(Academic Journals, http://www.academicjournals.org/ijps, 2008)
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 ...
Temperature-Emissivity separation with ASTER and LANDSAT 7 validation on the fringe of the Okavango Delta, Botswana
(SPIE, http://link.aip.org, 2004)
Land surface temperatures are important in global change studies, in estimating radiation budget, heat balance studies and as control for climate models. Several algorithms for estimating land surface temperature and ...
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 ...
Importance of nitrogen fixation in soil crusts of southern African arid ecosystems: acetylene reduction and stable isotope studies
(Elsvier, www.elsevier.com, 2003)
Cyanobacterial soil crusts may be important in arid and semi-arid ecosystems because of their ability to fix atmospheric nitrogen (N2). These crusts are very sensitive to trampling by animals, and their destruction can ...
Soil carbon inventories and δ13C along a moisture gradient in Botswana
(John Wiley and Sons, www.wiley.com, 2004)
We present a study of soil organic carbon (SOC) inventories and δ13C values for 625 soil cores collected from well-drained, coarse-textured soils in eight areas along a 1000 km moisture gradient from Southern Botswana, ...
The Southern African Regional Science Initiative (SAFARI 2000): wet season campaigns
(Wageningen Institute for Environment and Climate Research, http://library.wur.nl/, 2002)
The Southern African Regional Science Initiative (SAFARI 2000) involved two wet season and one dry season field campaigns. This paper reports on the wet season campaigns. The first was conducted at five sites along the ...
Common pool resource management among San communities in Ngamiland, Botswana
(Routledge, 2009-12-14)
The contestation for common pool resources in Botswana pits powerful institutions such as
national governments and international organisations against powerless local communities who continue to rely heavily on these ...
Deltamethrin in sediment samples of the Okavango Delta, Botswana
(South African Water Research Commission http://www.wrc.org.za, 2006)
Deltamethrin concentrations were determined in 35 sediment samples collected from three different habitats: channel, lagoon and pool sites from Xakanaxa in the Okavango Delta, NW Botswana. The samples were Soxhlet-extracted ...
Islands in the Okavango delta as sinks of water-borne nutrients
(Botswana Society, 2005)
Groundwater under islands in the Okavango Delta is a known sink of inorganic dissolved minerals, preventing salinisation of this virtually enclosed evaporation-dominated hydrological system. The Okavango Delta is an ...