Michael van der Laan

TL;DR: Results suggest that for parthenin to have detrimental allelopathic effects, it requires high P. hysterophorus densities that result in high soil levels of Parthenin and soil conditions that favor the persistence of parthen in.

TL;DR: Climate change and N input interactions have strong implications for the design of robust adaptation practices across SSA, because the impact of climate change will be modified if farmers intensify maize production with more mineral fertilizer.

TL;DR: Investigation of the ability of water footprints to inform water resource management at catchment-scale was investigated on the Steenkoppies Aquifer, South Africa, and a catchment WF framework was developed that gave important insights into the hydrology of the aquifer through a simplified method.

TL;DR: In this paper, chemical water quality data obtained from the South African Department of Water Affairs was used to assess the quality of river water in the Crocodile, Komati-Lomati and Pongola River catchments.

TL;DR: The first author, Betsie le Roux, conducted this research and wrote the paper as part of her Ph.D. studies; Michael van der Laan supervised the research as discussed by the authors.