Evaluation of the Edge-effect on the Farmland Production Environment in Hilly and MOuntainous Areas (1) : Spatial and Temporal Changes of Solar Radiation Environment

• Yuge Kozue

  Faculty of Agriculture, Kyushu University

• Haraguchi Tomokazu

  Faculty of Agriculture, Saga University

• Anan Mitsumasa

  Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University

• Nakano Yoshisuke

  Faculty of Agriculture, Kyushu University

Abstract

The objective of this study is quantification of the solar radiation in the farmland located in the hilly and mountainous areas, considering the effect of the shelter adjacent to the field, such as the forest (This effect is called as the edge-effect in this study.). To evaluate the edge-effect on the solar radiation environment in the farmland, solar radiations are measured at the center and edge of the study site adjacent to the forest. The simulation model is composed, coupling with the fish-eye projection method and procedure for the separating direct and diffuse solar radiations. Using this model, the diurnal solar radiations are simulated at the center and edge of the study site. The simulation result showed good agreement with the observation. The spatial distribution of the solar radiation in an observational field is quantified by this method, considering the edge-effect. The simulation result indicated that the solar radiation environment on the field surface is affected by the shelter adjacent to the field and the field direction.

Journal

• Journal of the Faculty of Agriculture, Kyushu University

  Journal of the Faculty of Agriculture, Kyushu University 52 (1), 175-178, 2007-02-28

  Faculty of Agriculture, Kyushu University

Keywords

• Geo-Environment Science
• 地水環境学

Details

• CRID: 1390009224683692544
• NII Article ID: 110006199668
• NII Book ID: AA00247166
• DOI: 10.5109/9302
• HANDLE: 2324/9302
• ISSN: 00236152
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles