Study on inverse estimation of irrigation water supply by using plant growth and ground water combined model

本研究利用水稻产量资料，建立了灌溉供水量的反推方法。利用辐射光谱-水稻产量关系曲线，估算了水稻产量的空间分布.根据气象资料，利用植物生长模型计算水稻水分胁迫，利用考虑地下水影响的土壤水分平衡模型估算灌溉用水量。

In this study, inverse estimation method of irrigation water supply was developed from rice yield data. The distributions of rice yield were evaluated by using the radiation spectral - rice yield relation curves. Water stress of paddy rice was calculated by using plant growth model from meteorological data, and irrigated water was estimated by using soil water balance model considering the effect of ground water.