Publications Published in Phyton: Annales Rei Botanicae
Sources of nitrous oxide emissions in intensive grassland managements. Jarvis, S. C.; Yamulki, S.; Brown, L..
Phyton: Annales Rei Botanicae:
This paper provides a review of some recent research on nitro-as oxide (N2O) emissions conducted in intensively managed grassland-based livestock systems by The Institute of Grassland and Environmental Research (IGER). Studies have allowed improved confidence in the estimates of rates of emission from a range of sources but have also demonstrated wide-ranging temporal and spatial variability. Losses associated with the movement of NO3- at depth in well-rained soils, and with other un-managed components of a dairy farming landscape have been identified and quantified. The data obtained have been used to develop improved model prediction. A process-based model has been developed from the DNDC model of LI & al. 1992 which has been validated against UK information. This has produced a flexible, transparent means of predicting N2O emissions at a range of scales ranging from field to national levels.