Search Results - "Masamba, Wellington R. L"
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River-wetland interaction and carbon cycling in a semi-arid riverine system: the Okavango Delta, Botswana
Published in Biogeochemistry (01-07-2013)“…The Okavango River, in semi-arid northwestern Botswana, flows for over 400 km in a pristine wetland developed on a large (>22,000 km²) alluvial fan (Okavango…”
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Spatial and temporal dynamics of diffusive methane emissions in the Okavango Delta, northern Botswana, Africa
Published in Wetlands ecology and management (01-02-2014)“…Global warming is associated with the continued increase in the atmospheric concentrations of greenhouse gases; carbon dioxide, methane (CH₄) and nitrous…”
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3
Physicochemical controls of diffusive methane fluxes in the Okavango Delta, Botswana
Published in Wetlands ecology and management (01-08-2015)“…Atmospheric methane (CH₄) is one of the three key greenhouse gases (GHGs) driving global climate change. The atmospheric concentration of CH₄ has increased by…”
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Stable hydrogen and oxygen isotopes reveal aperiodic non-river evaporative solute enrichment in the solute cycling of rivers in arid watersheds
Published in The Science of the total environment (15-01-2023)“…We investigated the spatial and temporal variations of the stable isotope composition of hydrogen (δD) and oxygen (δ18O) and the total dissolved ions (TDI)…”
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Nutrient composition of common fish species in the Okavango Delta: potential contribution to nutrition security
Published in Environment, development and sustainability (01-08-2024)“…Fish can be a key strategy in addressing the global food and nutrition insecurity challenges. Fish nutrient data are critical for policy development targeting…”
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Dissolved Organic Matter Accumulation, Reactivity, and Redox State in Ground Water of a Recharge Wetland
Published in Wetlands (Wilmington, N.C.) (01-09-2008)“…Ground water beneath the seasonal swamp of the Okavango Delta, a recharge wetland in northwestern Botswana, is known to be a sink for solutes. In this study,…”
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Investigation of helium inductively coupled plasma-mass spectrometry for the detection of metals and nonmetals in aqueous solutions
Published in Analytical chemistry (Washington) (15-10-1993)“…Aqueous solutions were introduced into a helium inductively-coupled plasma mass spectrometer (ICPMS) in order to detect metals and nonmetals. The effect of…”
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Spatial and Seasonal Variability in Surface Water Chemistry in the Okavango Delta, Botswana: A Multivariate Approach
Published in Wetlands (Wilmington, N.C.) (01-10-2011)“…The annual flood pulse in the Okavango Delta (Botswana), has a major influence on water chemistry and habitat. We explore spatial and temporal patterns in a…”
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Diatom sensitivity to hydrological and nutrient variability in a subtropical, flood-pulse wetland
Published in Ecohydrology (01-07-2012)“…ABSTRACT The principal aim of this study was to disentangle hydrochemical influences on primary producers in a pristine, flood‐pulse ecosystem. This was…”
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Quality of drinking water and cholera prevalence in Ndirande Township, City of Blantyre, Malawi
Published in Physics and chemistry of the earth. Parts A/B/C (01-01-2014)“…Scarcity of safe drinking water is a big problem in Ndirande Township, City of Blantyre. Consequently, residents use unsafe sources of drinking water other…”
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Impact on water quality of land uses along Thamalakane-Boteti River: An outlet of the Okavango Delta
Published in Physics and chemistry of the earth. Parts A/B/C (2008)“…Botswana is a semiarid country and yet has one of the world’s famous wetlands: the Okavango Delta. The Thamalakane-Boteti River is one of the Delta’s outlets…”
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Analysis of Gender and Other Social Dimensions of Household Water Insecurity in Ngamiland, Botswana
Published in Journal of management and sustainability (01-12-2014)“…This paper analyzes impacts of water insecurity on men, women and children in Botswana, a middle income and semi-arid country. The paper contributes to the…”
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