山东农业科学2016，Vol.48Issue(5)：28-30,3.DOI:10.14083/j.issn.1001-4942.2016.05.007
拔节期淹水玉米冠层光谱变化特征分析
Character Analysis of Canopy Spectral Changes of Corn at Jointing Stage under Waterlogging Stress
摘要
Abstract
Using plot simulation test with the corn at jointing stage as research object,the influences of different flooding times on corn canopy spectrum reflectance and vegetation indexes were analyzed under con-tinuous irrigation imitating flooding condition.The results showed that with the increase of flooding time,the corn canopy spectrum reflectance at red band (565 ~707 nm)increased,and those at blue band (400 ~480 nm),green band (513 ~564 nm)and near red band gradually reduced.Especially at the near red band,the flooding time and spectrum reflectance showed a significantly negative correlation.At the same time,the RVI, NDVI,and DVI were set up to monitor the corn growth situation under different flooding times.At early flood-ing stage,the three indexes grew rapidly,and then declined in different levels at late flooding stage when the corn went into the water stress state.Among which,the change of DVI was the most obvious which could be used to evaluate corn flooding degree.关键词
玉米/拔节期/涝灾/冠层光谱/植被指数/遥感监测Key words
Corn/Jointing stage/Flooding/Canopy spectrum/Vegetation index/Remote sensing monitoring分类
农业科技引用本文复制引用
颜丙囤,隋学艳,王猛,侯学会,陈振,姚慧敏,梁守真..拔节期淹水玉米冠层光谱变化特征分析[J].山东农业科学,2016,48(5):28-30,3.基金项目
山东省农业重大应用技术创新课题“基于遥感数据的玉米涝灾监测、预警与评估技术研究”；农业农村资源等监测统计经费（农业遥感监测与评价）项目“山东省主要农作物种植面积遥感监测”；山东省信息化（电子政务）专项资金项目“山东省农情遥感监测平台建设” （）
