Evaluation of the Edge-effect on the Farmland Production Environment in Hilly and Mountainous Areas (2) : Energy Balance on the Soil Surface

概要

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The objectives of this study are evaluating the energy balance and water consumption on the soil surface of the farmland located in the hilly and mountainous areas, considering the effect of the shelter adjacent to the farmland, such as the forest (This effect is called as the edge-effect in this study.). Field experiment is conducted at the observational field arranged to imitate the actual farmland adjacent to the forest. The solar radiation and temperature on the soil surface are measured at the 4 measurement points, and the spatial and temporal changes of the energy balance components, including the net radiation, sensible heat flux, ground heat flux, are quantified using the measurement data. The net radiation and the latent heat flux show the large spatial variations, comparing with the sensible heat flux and ground heat flux. At the point facing the north and in the vicinity of shelter, the condensation is obtained. The results indicated that the shelter adjacent to the farmland in the hilly and mountainous areas brings the spatial variation of the energy balance and water consumption on the field surface.
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