Search Results - "Lorentz, S"
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Climate change and mountain water resources: overview and recommendations for research, management and policy
Published in Hydrology and earth system sciences (04-02-2011)“…Mountains are essential sources of freshwater for our world, but their role in global water resources could well be significantly altered by climate change…”
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Investigation of hydrological processes and the impacts of Acacia mearnsii plantations on groundwater in secondary aquifers: Case study at the two-stream research catchment, South Africa
Published in Journal of hydrology. Regional studies (01-04-2022)“…Two-Streams catchment, KwaZulu-Natal Midlands, South Africa. The impacts of Acacia mearnsii plantations on hydrological processes including groundwater is…”
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Controlling factors of sheet erosion under degraded grasslands in the sloping lands of KwaZulu-Natal, South Africa
Published in Agricultural water management (01-09-2011)“…The current increase in the global demand for food and fresh water and the associated land use changes or misuses exacerbate water erosion which has become a…”
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Decreased vitamin B12 availability induces ER stress through impaired SIRT1-deacetylation of HSF1
Published in Cell death & disease (01-03-2013)“…Vitamin B12 (cobalamin) is a key determinant of S-adenosyl methionine (SAM)-dependent epigenomic cellular regulations related to methylation/acetylation and…”
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Sandflies and leishmaniasis in Germany
Published in Parasitology research (1987) (01-12-2008)“…This study has provided evidence for the natural occurrence of sandflies in Germany. Two species belonging to the genus Phlebotomus were detected. Phlebotomus…”
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Influence of basin connectivity on sediment source, transport, and storage within the Mkabela Basin, South Africa
Published in Hydrology and earth system sciences (21-02-2013)“…The management of sediment and other non-point source (NPS) pollution has proven difficult, and requires a sound understanding of particle movement through the…”
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Influence of grass soil cover on water runoff and soil detachment under rainfall simulation in a sub-humid South African degraded rangeland
Published in Earth surface processes and landforms (15-06-2011)“…In most regions of the world overgrazing plays a major role in land degradation and thus creates a major threat to natural ecosystems. Several feedbacks exist…”
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Water erosion-induced CO2 emissions from tilled and no-tilled soils and sediments
Published in Agriculture, ecosystems & environment (15-09-2012)“…► We investigated the impact of tillage on soil and erosion-induced CO2 losses. ► Tilled (T) and no-tilled (NT) maize treatments were considered. ► NT reduced…”
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Imprints of Glacial Refugia in the Modern Genetic Diversity of Pinus sylvestris
Published in Global ecology and biogeography (01-05-2006)“…Aim: To understand the impact of glacial refugia and migration pathways on the modern genetic diversity of Pinus sylvestris. Location: The study was carried…”
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The use of Slingram EM38 data for topsoil and subsoil geoelectrical characterization with a Bayesian inversion
Published in Geoderma (01-06-2013)“…We use the Bayesian method to invert a simple two-layer pedological horizon (1-D with a topsoil and a subsoil) of a surveyed site to be assessed. We show how…”
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A geophysical analysis of hydro-geomorphic controls within a headwater wetland in a granitic landscape, through ERI and IP
Published in Hydrology and earth system sciences (01-08-2010)“…Wetlands are undergoing considerable degradation in South Africa. As interventions are often technical and costly, there is a requirement to develop conceptual…”
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Establishment of a catchment monitoring network through a participatory approach in a rural community in South Africa
Published in Hydrology and earth system sciences (13-12-2010)“…The establishment of a catchment monitoring network is a process, from the inception of the idea to its implementation, the latter being the construction of…”
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Rainfall-induced groundwater ridging and the Lisse effect on tailings storage facilities: A literature review
Published in Journal of the Southern African Institute of Mining and Metallurgy (01-02-2022)“…The failure of tailings storage facilities (TSFs) results in the discharge of significant quantities of hazardous waste material into the natural environment…”
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Nutrient Vectors and Riparian Processing: A Review with Special Reference to African Semiarid Savanna Ecosystems
Published in Ecosystems (New York) (01-12-2007)“…This review article describes vectors for nitrogen and phosphorus delivery to riparian zones in semiarid African savannas, the processing of nutrients in the…”
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Comparison of methods for determining unsaturated hydraulic conductivity in the wet range to evaluate the sensitivity of wetting front detectors
Published in Water S. A. (01-01-2012)“…The design of passive lysimeters or wetting front detectors determines the tensions at which they collect a water sample from an unsaturated soil. When…”
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Soil as indicator of hillslope hydrological behaviour in the Weatherley Catchment, Eastern Cape, South Africa
Published in Water S. A. (01-10-2010)“…There is an interactive relationship between soil and hydrology. Identifying and interpreting soil properties active in this relationship can enhance our…”
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Winter activity of Phlebotomus (Transphlebotomus) mascittii, Grassi 1908 (Diptera: Psychodidae) on the island of Corsica
Published in Parasitology research (1987) (01-07-2008)“…In the first week of February 2008 on the island of Corsica, 55 Phlebotomus (Transphlebotomus) mascittii, 39 males and 16 females, were caught in a railway…”
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The hydrodynamic response of a semi-arid headwater wetland to technical rehabilitation interventions
Published in Water S. A. (01-01-2012)“…Loss of wetland extent continues to be documented as a significant problem and this is true for the headwaters of the Sand River system in the north-east of…”
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Assessment of the Impact of Irrigation with Low-quality Mine Water on Virgin and Rehabilitated Soils in the Upper Olifants Basin
Published in Mine water and the environment (01-03-2008)“…Low-quality mine water from collieries may be used in large quantities to irrigate agricultural crops on virgin (unmined) and rehabilitated soils in South…”
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Evaporative water use of different land uses in the upper-Thukela river basin assessed from satellite imagery
Published in Agricultural water management (01-09-2011)“…▶ Each land use has different evaporative water use. ▶ Remote sensing is a good platform for addressing scale issues in hydrology. ▶ Low spatial resolution of…”
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