利用NOAA卫星资料进行冬小麦苗情分类统计的研究
Statistic classification of winter wheat growth conditions by using NOAA satellite information
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摘要: 农作物苗情长势是指导农业生产、预测农作物产量的重要参考，利用气象卫星绿度值资料分析统计淮北地区的冬小麦三类苗情比例，首先根据1986～1994年地面苗情观测资料分析了小麦苗情的分布特征，提出4条假设，通过对绿度 值历史资料的统计分析，确定三类苗情的绿度值划分指标，从而可利用气象卫星绿度值资料统计小麦苗情比例及其分布。Abstract: The situations of crop growth is a very important reference in guiding agricultural production and forcasting crop yield.ln this study,value of green degree from meteorological sattellite is used for analysing the growth conditions of winter wheat in Huaibei.Firstly,based on the investigations to the growth situations of winter wheat and their distributions in Haibei from 1986 to 1994,four hypothesises were set up.Secondly based on the analysis of the historical green degree information,green degree indexes were presented for classification of three kinds of growth conditions.Thus the green degree information from meteorological sattellite can be used for monitoring the growth of winter wheat.
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