Acetylene-reducing activity and nitrogen inputs in a bluff of Eleagnus angustifolia L

espanolSe estudia la actividad reductora de acetileno (ARA) y las entradas de nitrogeno por descomposicion de la hojarasca en un bosquete de E. angustifolia cerca de Madrid. El maximo diario de ARA se obtiene a las 6 horas y el anual, en el mes de septiembre. El nitrogeno total que retorna al suelo del bosquete con la caida de hojarasca es 34. 5 kg ha-' ano-'. EnglishDaily and annual variations in acetylene-reducing activity (ARA) and nitrogen input through litterfall in an Elaeagnus angustifolia stand near Madrid were determined. Maximum ARA was found at 6 a. m. and in September for daily and monthly measurements, respectively. Total nitrogen input in litter fall was 34. 5 kg ha-' year-'.