It focuses first on the daily course of evaporation derived from the surface energy balance module only, forced with meteorological variables, net radiation and soil moisture.
The model is calibrated by means of the Multi-objective Calibration Iterative Process (MCIP) algorithm and next validated for evaporation and soil moisture over a dataset collected in a Southern France grassed vineyard. The model makes use of standard meteorological data together with parameters describing foliage development, grass and soil characteristics. It is coupled with a soil water balance module running with a daily time step. A three-source energy balance approach describes the energy and mass transfer between the soil-plant continuum and the lower atmosphere with an hourly time step. 草业学报, 2010, 19(2): 1-6.A parsimonious and versatile Soil-Vegetation-Atmosphere Transfer (SVAT) model is proposed for three component vineyards, which includes vine foliage, grassed soil and bare soil. Agcultural and Forest Meteorology, 2004, 123: 13-39. How plant functional-type, weather, seasonal drought, and soil physical properties alter water and energy fluxes of an oak-grass savanna and an annual grassland. Simulating surface energy and radiometric surface temperatures for two arid vegetation communities using the SHAW model. Agricultural and Forest Meteorology, 1991, 56: 227-246. Modeling plant canopy effects on variability of soil temperature and water. Modeling evapotranspiration and surface energy budgets across a watershed. Modeling the exchanges of energy, water, and carbon between continents and the atmosphere. Sellers P J, Dickinson R E, Randall D A, et al. The energy balance closure problem: an overview.
korshinskii forest at the sun-facing slope. italica at the shaded slope, and the energy outgoing components were contrary for S. The simulation of energy balance indicated that the energy outgoing components were latent heat, followed by sensible heat from M. However, the proportion of long wave effective radiation was higher in soil layer than the residue layer and plant canopy layer for C. tabulaeformis at the sun-facing slope, and soil layer released less long wave effective radiation. 91% of long wave effective radiation came from plant canopy layer for P. For Stipa bungeana and Setaria italica at the shaded slope, the proportion of soil layer absorbed short wave radiation was higher. The results showed that the proportion of short wave radiation absorbed by plant canopy layer was more than soil layer and residue layer for Pinus tabulaeformis and Caragana korshinskii at the sun-facing slope, and for Medicago sativa at the shaded slope. The energy transfer and distribution of the soil-residue-plant canopy layers in typical vegetation cover types were simulated from April to September in 2007, using one dimension water and heat transfer model SHAW (the simultaneous heat and water), at Liudaogou watershed in the farming-pastoral zone of the Loess Plateau.
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