Scriptiebank overzicht

Climate change has a significant impact on agricultural production because of its reliance on
environmental factors. Like in most parts of the world, the climate in Belgium is changing with
projections of increase in winter precipitation and decrease in summer precipitation. With
accompanying higher temperatures, evaporation will increase, and water availability will decrease,
especially in summer. It then becomes necessary to efficiently manage soil water for sustainable
crop production. While conservation agriculture is a promising climate smart agricultural
technology, it is often considered with less focus on mulching, one of the pillars of CA. In cases
where mulching has been studied, it was mostly under conventional tillage system, and about yield
and greenhouse gases emission. Since there is no one-size-fits all on soil water management. It is
imperative to conduct strategies suitable to local conditions. Potato is a staple crop in Belgium,
and it is drought sensitive. This makes it susceptible to effects of climate change. Therefore, this
research studied the impacts of mulching, under reduced tillage, on soil water balance and potato
growth as an adaptation strategy to climate change in the Flemish agricultural context.
A field experiment was conducted on a bio-parcel of the Flanders research institute for agriculture,
fisheries and food in Melle, East Flanders, Blegium. This study evaluated the effects of two
different mulch thickness (6 cm and 12 cm) against bare soil (no mulch) on evapotranspiration
(ET), potato growth, yield and water use efficiency (WUE). An adapted soil water balance
equation was used to determine ET; plant height and leaf area index (LAI) were used as parameter
of crop growth; and WUE was determined as a quotient of yield and ET. Data collected were
subjected to analysis of variance and significantly different means were separated using Tukey’s
Honestly Significant Difference (HSD) at 5% level of significance.
This study revealed that soil structural quality and soil water content improved under mulch; 12
cm mulch performed best in preventing drought stress during low rainfall; ET increased with
increasing mulch thickness though not significantly; 12 cm mulch significantly increased LAI
compared to other treatments; and yield and WUE were not significantly different among the
treatments though 6 cm and 12 cm mulch increased yield by 7.4% and 10.9% respectively.

This Master's thesis quantified the transpiration of urban trees in Amsterdam and incorporated these measurements in a groundwater model.