Water quality studies for environmental impact studies. A case study from the Pequenos Libombos reservoir, Mozambique
The main objective of the construction of the dam is the safe water supply for Maputo. As part of this project the water quality of the reservoir has been examined partly by a synoptic water quality study in March 1991, partly by studying data from
the seventies and eighties in the Umbeluzi River basin. The study is focused on the questions of salinization, eutrophication and pesticide and heavy metal pollution.
A geomorphological approach to soil erosion studies in Lesotho. Case studies of soil erosion and land use in the southern Lesotho Lowlands in Monitoring soil loss at different observation levels. Case studies of soil erosion in the Lesotho Lowlands.
The first aim is to study erosion on different scales (catchment, subcatchment, runoff plot) in order to find the optimum one for measuring the impact of land use on erosion. The second aim is to try to quantify erosion from various land use
Volcanological applications of pyroclastic studies in Tephra studies.
Pyroclastic studies can help determine the internal plumbing systems and magma release mechanisms of volcanoes, for example where they yield the magma output rate and provide evidence for magma mixing, and fall deposits supply the best means
of studying compositionally-zoned magma chambers. They are also important in volcanic hazard studies, where the past pattern of explosive activity is used as a guide to the probable future behaviour of a volcano.