玉米高光谱及其红边特征分析

被引：33

作者：

唐延林

王秀珍

王人潮

机构：

[1] 贵州大学理学院物理系,浙江大学农业遥感与信息技术应用研究所,浙江大学农业遥感与信息技术应用研究所贵州贵阳　,浙江大学农业遥感与信息技术应用研究所,浙江杭州　,浙江杭州　,浙江杭州

来源：

山地农业生物学报 | 2003年 / 03期

关键词：

玉米; 高光谱反射率; 红边参数; 农学参数; 相关分析; 光谱测定;

D O I：

10.15958/j.cnki.sdnyswxb.2003.03.001

中图分类号：

S513 [玉米（玉蜀黍）];

学科分类号：

0901 ;

摘要：

通过大田和室内试验,测定了玉米冠层、完全展开倒一、三叶在不同发育期的反射光谱及叶片的叶绿素、类胡萝卜素含量。结果表明,随发育期推迟,冠层反射率在可见光范围内降低,在近红外区域增高;冠层光谱的红边具有"双峰"现象,红边位置λred随发育期推迟呈"红移"现象,而红边幅值Dλred和红边面积Sred呈"红移"和"蓝移"现象;叶面积指数、地上生物量和鲜叶重与冠层λred、Dλred、Sred显著相关,叶片叶绿素和类胡萝卜素含量与其λred、Dλred、Sred也显著相关。

引用

页码：189 / 194

页数：6

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