干旱地区农业研究Issue(4)：94-98,5.
基于 APSIM 的旱地小麦叶面积指数模拟模型构建
Modeling of APSIM-based simulation of leaf area index of wheat in dryland
摘要
Abstract
In order to understand the growth law of leaves of wheat in dryland ,the APSIM-based model of leaf area potential growth and the leaf area growth model regarding to water and nitrogen stress were built .The parameters of AP-SIM were modified and verified according to the data collected from the field experiment ,and the dynamic process of leaf area index (LAI) during the growth period of wheat was simulated by connecting the models to APSIM-Wheat .Further-more ,the change law of LAI of wheat was explored by using correlation analysis method .The results showed that the AP-SIM-based model of leaf area potential growth and the leaf area growth model regarding to water and nitrogen stress could be used to simulate the dynamic process of LAI of wheat with a high accuracy .During the whole growth period of wheat , the simulated and observed LAI values were positively correlated (R=0 .996) ,with the normalized root mean square er-ror (NRMSE) within 3 .08% ~9 .38% and the effectiveness index (ME ) within 0 .594~0 .956 .关键词
APSIM/小麦/模拟模型/叶面积指数Key words
APSIM/wheat/simulation/leaf area index分类
农业科技引用本文复制引用
聂志刚,李广..基于 APSIM 的旱地小麦叶面积指数模拟模型构建[J].干旱地区农业研究,2013,(4):94-98,5.基金项目
国家自然科学基金资助项目（31060178）；甘肃农业大学科技创新基金项目 （）
