Land use change
14 important questions on Land use change
What is land use change?
Which processes are effected by land use change?
- Soil infiltration and water retention capacity.
- Local temperature and rainfall when change occurs over large areas.
Which processes are effected by land use change?
- Soil infiltration and water retention capacity.
- Local temperature and rainfall when change occurs over large areas.
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What are three ways to estimate the effects of land use change?
- Model simulation
- Paired catchment experiment
What is a limitation on the Penman-Monteith approach?
What are the advantages of using a model simulation to determent the land cover use?
- Multiple scenario's can be modeled after proper parametrization.
What are the limitations of using a model simulation to determent the land cover use?
- Equifinality
How does a paired catchment approach work?
What are to cons of the paired catchment approach?
- Black box method
What are four causes of increased water yield after forest cutting?
2. Reduced transpiration
3. Wetter soils produce more storm runoff
4. Disturbed soils tend to generate more runoff
Does deforestation lead to an increase or a reduction in dry-season flow if there is soil degradation?
What do you need to know about forests and annual streamflow.
Forests have greater leaf area, deeper roots, lower albedo and
higher aerodynamic roughness than shrubs, crops or pastures:
hence under normal conditions forest water use is (much) higher
than that of shorter vegetation.
Catchment response to rainfall (stormflow) is typically increased upon forest clearing because? (2 things)
2. Decrease in topsoil infiltration capacity likely to lead to increase in overland flow.
Why are floods not much affected by the presence or absence of forests?
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