基于植被指数的新疆棉花遥感估产模型研究

The Research of Cotton Yield Estimation Based on Vegetation Index Using Remote Sensing in Xinjiang

利用植被指数与棉花产量的关系建立了棉花遥感估产模型,以期利用多时相遥感数据,实现对棉花产量定量遥感预测。模型建立以新疆棉花各生育期的不同卫星数据,构建相关植被指数,并与实际棉花产量进行回归分析,建立了棉花单产的遥感估算模型。结果表明:以棉花最佳估产时相期植被指数与棉花产量构建的产量估算模型可很好地定量预测棉花产量,模型为棉花卫星遥感估产提供了参考模型,对其他作物使用动态生长信息提高遥感估产水平也有一定的借鉴意义。

The model of cotton yield according to the relationship between Vegetation Index and the cotton yield,using remote senging datas in every growing period to structure vegetation indexes,and the best model for estimating cotton yield has been established through regression analysis.The results indicated that there was a good relationship between vegetation indices and cotton yield,The referenced model for yield estimation from the present research could contribute the improvement of other crop yield remote sensing estimation.