AGRICULTURAL HERBS AS AUXILIARY PLANTS FO R THE ESTABLISHMENT OF FOREST SITES

An experiment of the 'Forest Ecosystems Research Center - Gottingen' w as the establishment of a melioration area on a former old spruce stan d site. Different treatments has been applicated: deep ploughing, incl uding liming and fertilization, surficial liming/fertilitation and a c ontrol version. On half the part of all treated versions agricultural auxiliary plants has been sowed with the goal to concentrate as fast a nd as much biomass as possible, to cover the soil and to integrate the yielded nutrient-elements into the material cycling. The dynamic of s uttlement, the development of the biomass and the element-reserves of the agricultural auxiliary plants has been research ed and described, aided by so called permanent monitoring plots respectively by harvesti ng the biomass in special plots. Given these results the use of agricu ltural auxiliary plants on cleared sites which are planed to be cultiv ated with forest plants is appraised.