夏玉米叶面积指数增长模型的研究

Normalized leaf area index model for summer maize

摘要: 以玉米多品种多年试验资料，研究了反映区域叶面积指数(LAI)动态变化的模拟模型，该模型以积温指标表示的生育阶段为自变量，综合不同地理位置、品种、播期、密度等的影响，是一个扩展的Logistic叶面积生长模型，经检验可很好地模拟不同生育阶段叶面积指数动态变化，可用于区域作物生长模拟模型和区域作物生长监测及遥感估产。

Abstract: Based on the data of severaI summer maize varieties acquired at Yucheng and Luancheng experimental stations，as well as some data from literatures．a general model of LAI was developed．It is a modified Logistic curve with normalized accum ulation temperature as a dependent variable．It is intended to provide a generalized LAI curve within the growing season for regional crop monitoring and yield estimation.