Estimation of rice productivity based on synthetic aperature radar in Northeast Thailand

2014 Fiscal Year Final Research Report

• Project/Area Number: 24780012
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Crop science/Weed science
• Research Institution: Kyoto University
• Principal Investigator: HOMMA Koki 京都大学, (連合)農学研究科(研究院), 講師 (60397560)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 後方散乱係数 / 水稲 / 収量 / 葉面積 / シミュレーションモデル / タイ / ラオス / インドネシア

Outline of Final Research Achievements

From the aspects of food security, development of evaluation method for crop production is recommended by utilizing satellite-based remote sensing. This study tried to use synthetic aperture radar (SAR) to evaluate rice production in Thailand, Lao PDR and Indonesia, where the production varies year-to-year.
The results showed that the method based on SAR was unsatisfied to evaluate leaf area index (LAI) or yield directly. However, periodic SAR image provided key to assess rice production. Transplanting date is estimated by using SAR image in relatively accurate level, which makes it possible to estimate rice production by combining a simulation model for rice growth and yield.

Free Research Field

作物