归一化植被指数测量技术研究

被引:14
作者
杨述平
机构
[1] 中北大学仪器科学与动态测试教育部重点实验室山西太原
关键词
归一化植被指数; 光传感器; 氮利用率; 测量技术;
D O I
10.16058/j.issn.1005-0930.2004.03.013
中图分类号
Q94-3 [植物学研究和植物学实验];
学科分类号
071001 ;
摘要
归一化植被指数是反映农作物长势和营养信息的重要参数之一,根据该参数,可以知道不同季节的农作物对氮的需求量,对合理施用氮肥具有重要的指导作用.本文提出了一种由四个专门设计的光电探测器,直接得到归一化植被指数的测量方法,理论上证明了经过标定的测量装置无须现场校正就可得出归一化植被指数.实验结果表明,该测量技术能准确反映植物的颜色特征,与地物光谱仪测试结果不重合度小于5%.
引用
收藏
页码:329 / 333
页数:5
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