Objetivo
STUDY OF THE NITROGEN CYCLE.
THE TRANSFORMATION PROCESSES OF NITROGEN DURING ITS PASSAGE FROM AGRICULTURAL SOILS TO ESTUARIES WILL BE STUDIED AS FOLLOWS:
1) A QUANTITATIVE DETERMINATION OF THE TURNOVER OF NITROGEN;
2) THE FATE OF NITROGEN FERTILISERS IN EXCESS TO PLANT NEEDS WILL BE DETERMINED BY MEASURING AMMONIA AND NITROUS OXIDE EMISSIONS AND DENITRIFICATION MOSTLY IN GRASS-LAND SOIL;
3) NITROGEN LEACHING FROM AGRICULTURAL SOILS WILL BE EVALUATED BY SYSTEMATICAL AND AMMONIUM DETERMINATIONS IN SMALL RIVERS;
4) THE PROCESS OF DENITRIFICATION IN RIVERS WILL BE STUDIED QUANTITATIVELY;
5) NITROGEN TRANSFER IN SCHELDE ESTUARY, LINKED TO THE PROCESSES OF DENITRIFICATION AND PRIMARY PRODUCTION, WILL BE STUDIED.