title: NitroScape: a model to integrate nitrogen transfers and transformations in rural landscapes.
abstract: Modelling nitrogen transfer and transformation at the landscape scale is relevant to estimate the mobility of the reactive forms of nitrogen (N(r)) and the associated threats to the environment. Here we describe the development of a spatially and temporally explicit model to integrate N(r) transfer and transformation at the landscape scale. The model couples four existing models, to simulate atmospheric, farm, agro-ecosystem and hydrological N(r) fluxes and transformations within a landscape. Simulations were carried out on a theoretical landscape consisting of pig-crop farms interspersed with unmanaged ecosystems. Simulation results illustrated the effect of spatial interactions between landscape elements on N(r) fluxes and losses to the environment. More than 10% of the total N(2)O emissions were due to indirect emissions. The nitrogen budgets and transformations of the unmanaged ecosystems varied considerably, depending on their location within the landscape. The model represents a new tool for assessing the effect of changes in landscape structure on N(r) fluxes.
authors: INRA-AgroParisTech, UMR 1091 Environnement et Grandes Cultures (EGC), 78850 Thiverval-Grignon, France.
authors: S
authors: S
authors: Duretz
authors: J L
authors: JL
authors: Drouet
authors: P
authors: P
authors: Durand
authors: N J
authors: NJ
authors: Hutchings
authors: M R
authors: MR
authors: Theobald
authors: J
authors: J
authors: Salmon-Monviola
authors: U
authors: U
authors: Dragosits
authors: O
authors: O
authors: Maury
authors: M A
authors: MA
authors: Sutton
authors: P
authors: P
authors: Cellier
mesh_terms: D000383:Agriculture; D000818:Animals; D017753:Ecosystem; D004784:Environmental Monitoring; D008954:Models, Biological; D058458:Nitrogen Cycle; D009609:Nitrous Oxide / Q000737:chemistry* / Q000378:metabolism; D012939:Social Planning; D013552:Swine / Q000378:metabolism
chemical_list: D009609:Nitrous Oxide