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油菜不同组分生物量光谱遥感估算模型-浙江农业学报.PDF

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浙江农业学报 (): , Acta Agriculturae Zhej iangensis 16 2 79 ~ 83 2004 油菜不同组分生物量光谱遥感估算模型 王 渊,王福民,黄敬峰 (浙江大学 农业遥感与信息技术应用研究所,农业信息科学与技术中心,浙江 杭州 310029 ) 摘 要:通过田间小区试验,测定了 个品种、个供氮水平的油菜冠层在不同生长时期的高光谱反射率及 4 3 对应叶片、茎以及荚果的干鲜重,并对叶片、茎以及荚果的干生物量与光谱植被指数 , 之间相关系 RVI NDVI 数进行显著性检验( = 0 .05 ),建立了油菜叶片、茎和荚果的干生物量光谱估算模型。 P 关键词:油菜;干生物量;植被指数;遥感模型 中图分类号: ; ; 文献标识码: 文章编号: ( ) TP79 S127 S565 .4 A 1004 - 1524 2004 02 - 0079 - 05 The models for estimation of dry biomass from different components of rapeseed us- ing canopy spectral data , , WANG Yuan WANG Fu-ming HUANG Jing-feng ( , Institute of Agricultural Remote Sensing Inf ormation System App lication Research Center f or Agricultural Inf ormation , , , ) Science and Technology Zhej iang University Hangzhou 310029 China TM : Abstract The canopy spectral reflectance of four varieties and 3 N levels were measured by a ASD FieldSpec Pro FR ( ) under the field condition at different growth stages of rapeseed . The normalized difference vegetation index NDVI and ( ) ratio vegetation index RVI were calculated using canopy spectral data . The correlation coefficient between dry biomass of rapeseed and spectrum vegetation indices were significant at 0 .05 level . The models for estimation of dry biomass from different components of rapeseed using canopy spect
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