时间:2018-11-15
作者:易科泰
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简介:
PlantPen叶夹式PRI&NDVI测量仪
PlantPen叶夹式PRI&NDVI测量仪是一种快速测量植物反射光谱指数的野外便携式仪器。PlantPen的两种标准版配置分别测量NDVI和PRI这两种应用最为广泛的植被指数。用户也可以定制其他参数。
PlantPen PRI 210:PRI (Photochemical Reflectance Index) 光化学反射指数是通过计算植物叶片对531nm和570nm两个波长光反射而得到的参数。该参数对类胡萝卜素极为敏感,反应植物的光合作用中的光能利用效率和CO2同化速率,并可作为植物水胁迫的可靠指数。因此广泛用于植物产量和胁迫研究。
PlantPen NDVI 310:NDVI (Normalized Difference Vegetation Index)归一化植被指数是通过计算植物叶片对红光和近红外两个波长光反射而得到的参数,是反映植物叶绿素含量的一个重要参数。叶绿素会强烈吸收红光用于光合作用,而叶片细胞结构会强烈反射近红外光。因此,NDVI与光合能力直接相关,从而反映植物冠层的能量吸收状况。
应用领域
功能特点
技术参数
用户定制
描述植物结构和叶绿素含量的参数种类很多,应用测量光波长各异,计算方法也各不相同。为了满足不同客户的需求,可以定制适合各种类似参数的掌上植物测量仪。或购买PolyPen RP410光谱仪测量植物全反射光谱。
应用案例
西班牙巴斯克大学使用PlantPen PRI测量仪和FluorPen叶绿素荧光仪研究高产大豆对干旱胁迫的生理和光合响应(Buezo,2019)。
沈阳农业大学使用PlantPen NDVI 和SpectroSense 2+植被指数测量仪分别测量水稻叶片和冠层的NDVI(Y Fenghua, 2016)
产地:捷克
参考文献
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