Use of BIOME-BGC to simulate water and carbon fluxes within Mediterranean macchia

iForest - Biogeosciences and Forestry

Corona P¹  Salvati R¹  Chirici G²  Duce P³  Vaccari FP⁴  Maselli F⁴  Chiesi M⁴  Spano D⁵ 

[1] DISAFRI - Università della Tuscia, v. S. Camillo Lellis snc, I-01100 Viterbo (Italy);EcoGeoFor - Università del Molise, Contrada Fonte Lappone snc, 86090 Pesche, IS (Italy);IBIMET-CNR, Traversa la Crucca 3, Regione Baldinca, I-07100 Li Punti, SS (Italy);IBIMET-CNR, via Madonna del Piano 10, 50019 Sesto Fiorentino (Italy);Università degli Studi di Sassari, Dipartimento di Economia e Sistemi Arborei (DESA), Euro Mediterranean Center on Climate Change - CMCC, via De Nicola 9, I-07100 Sassari (Italy);

关键词: Evapotranspiration;    Gross primary production;    C-Fix;    E-OBS dataset;   

DOI  :  10.3832/ifor0605-009

来源: DOAJ

【 摘 要 】

The biogeochemical model BIOME-BGC is capable to estimate the main ecophysiological processes characterising all terrestrial ecosystems. To this aim it needs to be properly adapted to reproduce the behaviour of each biome type through a calibration phase. The aim of this paper is to adapt BIOME-BGC to reproduce the evapotranspiration (ET) and photosynthesis (GPP) of Mediterranean macchia spread all over Italy. Ten different sites were selected in the Centre-South of Italy and their gross primary production (GPP) was estimated by applying a parametric model, C-Fix, based on remotely sensed data for ten years (1999-2008). These monthly data were then used to calibrate BIOME-BGC through an iterative process which led to reproduce the spatial and temporal GPP variations found by C-Fix. The calibrated model was then applied to simulate the ET and GPP of two Italian sites characterised by the presence of an eddy flux tower; its performances were evaluated against ground data by common statistics. The results obtained indicate that, after a proper calibration phase, BIOME-BGC can be applied to estimate the evapotranspiration and photosynthesis of Mediterranean macchia with a good accuracy, strictly dependent on the input data utilised.

【 授权许可】

Unknown