To evaluate rice production and management on a regional scale, a simulation model combined with remote-sensing is recommended. This study aimed to develop a simulation model for use with remote-sensing (SIMRIW-RS) to evaluate the field-to-field variation in rice production on a regional scale. This model was developed based on a simulation model for rice weather relations called SIMRIW and its derived models. The model consists of 6 components (water budget, nitrogen uptake, phenological development, leaf area index (LAI) growth, dry matter production and yield formation) and has 2 representative field parameters and 5 representative cultivar parameters. The parameters that were determined with the data from previous field studies seemed to be reflected with field and cultivar characteristics, and differences in the rice growth and production among the fields and cultivars were well explained by the model. The application of the model on a regional scale using remote sensing is discussed.

中文翻译：

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水稻遥感模拟模型（SIMRIW-RS）的开发

为了在区域范围内评估水稻生产和管理，建议使用与遥感相结合的模拟模型。本研究旨在开发一种用于遥感 (SIMRIW-RS) 的模拟模型，以评估区域范围内水稻生产的田间变化。该模型是基于称为 SIMRIW 的水稻天气关系模拟模型及其派生模型开发的。该模型由 6 个组成部分（水分收支、氮吸收、物候发育、叶面积指数 (LAI) 生长、干物质生产和产量形成）组成，具有 2 个代表性田间参数和 5 个代表性品种参数。用以前田间研究的数据确定的参数似乎反映了田间和品种特征，该模型很好地解释了不同领域和品种间水稻生长和产量的差异。讨论了该模型在区域尺度上使用遥感的应用。