Guideline for leaf area index estimation in non-mixed forest tree stands

This guideline introduces theory and methodological approaches for LAI estimation in forest stands, especially those which are user-friendly in the field as well as sufficiently accurate. These approaches include indirect methods, which use instruments with optical sensors. This guideline fills the gaps in the information given in the instruction manuals to these instruments. It gives a detailed description of how to assess whether the current conditions for LAI measurement are suitable, how to establish a grid of measurement points in a stand and what corrections to apply, etc. in order to obtain the desired value of LAI effectively and accurately