Obiettivo NIPHYS investigates effects of soil-borne and deposited nitrogen on forest organisms and soils along a climatic transect through Europe. NIPHYS will substantiate the understanding of nitrogen transformations in forest ecosystems and improve predictions on effects of changing depositions and global climate on broad-leaved and coniferous trees.Investigations on forest decline have demonstrated the importance of nitrogen deposition in enhancing various nutritional imbalances in trees and soil. Nevertheless, it is presently not possible to answer several basic questions : (1) What form of nitrogen is used by trees in different environments, (2) what roles are played by soil properties, mycorrhiza, and microorganisms in the transformation of nitrogen in forest soils, (3) which process regulate the ammonium/nitrate ratio in soil solution. NIPHYS addresses these issues by investigating plant, microbial, and abiotic processes involved in the transformation of ammonium and nitrate in forest soils of different climatic regions. The project combines botanical, microbiological and soil science. Each participant will work at all study sites. General objectives are : (1) to compare broad-leaved and coniferous trees, (2) to quantify the ecosystem internal fluxes of ammonium and nitrate, (3) to identify the sources of nitrate in groundwaters, and (4) to develop the capacity to predict future development in forest soils with respect to soil acidification and groundwater quality. Campo scientifico natural sciencesearth and related environmental sciencessoil sciencesnatural sciencesbiological sciencesecologyecosystemsmedical and health sciencesbasic medicinephysiologynatural sciencesbiological sciencesmicrobiology Programma(i) FP3-ENV 1C - Specific research and technological development programme (EEC) in the field of the environment, 1990-1994 Argomento(i) 0106 - Biogeochemical cycles and ecosystem dynamics Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore UNIVERSITAET BAYREUTH Contributo UE Nessun dato Indirizzo Universitätsstrasse 30 95440 Bayreuth Germania Mostra sulla mappa Costo totale Nessun dato Partecipanti (8) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francia Contributo UE Nessun dato Indirizzo Route de Mende 1919 34293 MONTPELLIER Mostra sulla mappa Costo totale Nessun dato Danish Forest and Landscape Research Institute Danimarca Contributo UE Nessun dato Indirizzo 16,Skovbrynet 2800 Lyngby Mostra sulla mappa Costo totale Nessun dato Institut National de la Recherche Agronomique (INRA) Francia Contributo UE Nessun dato Indirizzo Centre de Recherche de Nancy Champenoux 54280 Seichamps Mostra sulla mappa Costo totale Nessun dato Natural Environment Research Council Regno Unito Contributo UE Nessun dato Indirizzo Windermere Road LA11 6JU Grange-Over-Sands - Cumbria Mostra sulla mappa Costo totale Nessun dato THE SWEDISH UNIVERSITY OF AGRICULTURAL SCIENCES Svezia Contributo UE Nessun dato Indirizzo 901 83 Umeå Mostra sulla mappa Costo totale Nessun dato THE SWEDISH UNIVERSITY OF AGRICULTURAL SCIENCES Svezia Contributo UE Nessun dato Indirizzo Ulls v.33 750 07 UPPSALA Mostra sulla mappa Costo totale Nessun dato UNIVERSITAET HOHENHEIM Germania Contributo UE Nessun dato Indirizzo Fruwirthstr.20 70593 STUTTGART Mostra sulla mappa Costo totale Nessun dato UNIVERSITY OF SHEFFIELD Regno Unito Contributo UE Nessun dato Indirizzo Western Bank S10 2TN SHEFFIELD Mostra sulla mappa Costo totale Nessun dato