基于作物植被指数和温度的产量估算模型研究

Study on the Model of Crop Yield Estimating Based on NDVI and Temperature

该文利用冬小麦返青初期至抽穗初期的累积植被指数和孕穗—灌浆阶段的温度累积值为模型因子 ,建立冬小麦产量估算模型 ,在建模过程中 ,分析了模型变量与产量的关系并对变量获取方法进行了适当改进 ,简化了变量的获取途径 ,为模型的业务化应用奠定了基础。

In this article, the Model was established for Crop Yield Estimating by using accumulated NDVI of winter wheat from returning green stage to heading stage and accumulated temperature from booting stage to filling stage. This Model can be put into service operation because of its high accuracy to estimate crop yield and its convenience to obtain the factors of the model. Furthermore, the influences of the model factors on crop yield have been theoretically analyzed and the approaches of improving and simplifying the way to get the model factors have been supplied in order to make the model efficient.