To use pollen traps to monitor pollen deposition across vegetation transitions from closed forest to open situations under as natural conditions as possible as a basis for interpreting fossil pollen spectra.
The use of pollen traps distinguishes this programme from one utilizing moss polsters in that it enables the calculation of pollen influx, not just pollen percentages. The emphasis on natural forest - unforested transects also distinguishes this programme from others which focus specifically on the area of forest cleared by man (Gaillard, in press).