Frequently asked questions
The technical options and approaches available to researchers are key leverage points for successful water
balance modeling in forest stands supplied with water exclusively from rainfall and without irrigation.
Numerous studies have shown the impact that changes in the canopy can have on water consumption,
on drainage flow and constraints suffered by trees.
Forest managers and sylviculturists have proposed a range of questions:
Related to the current climate conditions:
- Is it possible to compare levels of drought conditions suffered by a given stand over a period of several years?
- In my region, was the drought in 1976 more severe than the drought in 2003?
Related to a changing climate:
- If the phenology is modified with future climate conditions, how will water balance change?
- If the climate changes, how is it possible to quantify changes in constraints or water stability in forest stands?
Related to canopy type:
- What is the difference in the water consumption for deciduous and coniferous forest stands?
- What is the difference in water consumption between trees and the herbaceous sub-layer?
- How does this consumption change throughout the year?
Related to the soil:
- For a given climatic year, how do differences in the soil induce differences in a stands water stress levels?
- What are the periods in the year when differences in the soil water reserve are the most significant to stand productivity?
Related to forestry operations:
- Is it possible to quantify the trees improved water comfort if the stand is thinned?
- How can the canopy be adapted to economize water consumption?
Related to water balance modeling:
- What are the impacts on forests of drainage and watershed flow?
- Does a forest consume more or less than grassland? than cultivated agriculture?