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
[2] 浙江大学农业遥感与信息技术应用研究所
[3] 浙江大学农业遥感与信息技术应用研究所 贵州贵阳 
[4] 浙江杭州 
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
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
收藏
页码:189 / 194
页数:6
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