PolyPen RP 410手持式植物光谱测量仪通过内部光源（氙气白炽灯380-1050nm）测定植物叶片的反射光谱，也可以测定其他光源的透光度和吸光率、�/span>PolyPen在软件中内置了几乎所有常用的植物反射光谱指数公式，例妁�/span>NDVI＋�/span>PRI＋�/span>NDGI等。测得的数据以图形或数据表的形式实时显示在仪器的显示屏上。这些数据都可以储存在仪器的内存里并传输到电脑里、�/span>

PolyPen RP 410由可充电锂电池供电，不需要使用电脑即可独立进行测量。仪器配备全彩色触屏显示器、内置光源、内�?/span>GPS和用于固定样品的无损叶夹。叶夹具备进行光源和检测器校准的标准参照物、�/span>

应用领域９�/span>

?植物反射光谱测量

?植物胁迫响应

?色素组成变化

?氮素含量变化

?产量估测

技术特点：

?目前*便携的测量植物叶片反射光谱的高光谱测量仪、�/span>

?自动计算常用的植物反射光谱指数，也可计算用户定制的指数，同时提供高精度反射光谱图、�/span>

?非破坏性原位测量、�/span>

?手持式仪器，电池供电，无需外部电脑，便于野外测量、�/span>

?内置GPS＋�/span>USB/蓝牙双通讯模式

技术参数：

?光谱检测范围：

PolyPen RP 410UVIS光谱响应范围丹�/span>380-790nm

PolyPen RP 410NIR光谱响应范围丹�/span>640-1050nm

?内置植被指数９�/span>

PolyPen RP 410UVIS９�/span>NDVI�?/span>SR、绿度指数�?/span>MCARI�?/span>TCARI�?/span>TVI�?/span>ZMI�?/span>SRPI�?/span>NPQI�?/span>PRI�?/span>NPCI�?/span>Carter指数�?/span>SIPI�?/span>GM1、�/span>

PolyPen RP 410NIR９�/span>NDVI�?/span>SR�?/span>MCARI1�?/span>OSAVI�?/span>MCARI�?/span>TCARI�?/span>ZMI�?/span>Ctr2�?/span>GM2

?光源９�/span>氙气白炽�?/span>380-1050nm

?光谱响应半宽度：8nm

?光谱杂散光：-30dB

?光学孔径９�/span>7mm

?扫描速度：约100ms

?触控屏：240��320像素＋�/span>65535艱�/span>

?内存９�/span>32MB（可存储8000组以上测量数据）

?系统数据９�/span>16位数模转捡�/span>

?动态范围：高增盉�/span> 1:4300；低增益1:13000

?GPS：内�?/span>

?通讯方式９�/span>USB/蓝牙双通讯模式

?软件功能：自动计算内置植被指数、计算用户自定义植被指数、实时显示数据图和数据表、数据导出为Excel�?/span>GPS地图、固件升级，Windows XP及以上系统适用

?光谱反射标准配件（选配）：提供**的漫反射值（99%）。光谱平面涵盕�/span>UV-VIS-NIR光谱，保�?/span>+/-1%的光学平面。用于光源和检测器的校准、�/span>

?尺寸９�/span>15��7.5��4cm

?重量９�/span>300g

?外壳：防水溅外壳

?电池：锂电池，通过USB接口充电

?续航时间：可连续测量48小时

?工作温度９�/span>0~50ℂ�/span>

?存放温度９�/span>-20~70ℂ�/span>

软件界面

应用案例

扁桃树红色叶斑病造成叶片反射光谱及相应植被指数变化（M L��pez-L��pez�et al.2016（�/span>

参考文�?/span>

1.A Niglas�et al.2017.Short-term effects of light quality on leaf gas exchange and hydraulic properties of silver birch (Betula pendula).Tree Physiology 37(9):1218-1228

2.M Ashrafuzzaman�et al.2017.Diagnosing ozone stress and differential tolerance in rice (Oryza sativaL.) with ethylenediurea (EDU).Environmental Pollution230:339-350

3.M L��pez-L��pez�et al.2016.Early Detection and Quantification of Almond Red Leaf Blotch Using High-Resolution Hyperspectral and Thermal Imagery.Remote Sens. 8(4):276

4.PJ Zarco-Tejada�et al.2016.Seasonal stability of chlorophyll fluorescence quantified from airborne hyperspectral imagery as an indicator of net photosynthesis in the context of precision agriculture.Remote Sensing of Environment179:89-103

5.VV Ptushenko�et al.2015.Possible reasons of a decline in growth of Chinese cabbage under a combined narrowband red and blue light in comparison with illumination by high-pressure sodium lamp.Scientia Horticulturae194:267-277

6.VV Ptushenko�et al.2014.Chlorophyll fluorescence induction� chlorophyll content� and chromaticity characteristics of leaves as indicators of photosynthetic apparatus senescence in arboreous plants.Biochemistry (Moscow)79:260-272

内置计算公式的植物光谱指数：

?归一化差值植被指�?/span>Normalized Difference Vegetation Index (NDVI)

参考文献：Rouse et al. (1974)

公式９�/span>NDVI = (R_NIR- R_RED) / (R_NIR+ R_RED)

?简单比值植被指�?/span>Simple Ratio Index (SR)

参考文献：Jordan (1969); Rouse et al. (1974)

公式９�/span>SR = R_NIR/ R_RED

?改进的叶绿素吸收反射指数1Modified Chlorophyll Absorption in Reflectance Index1(MCARI1)

参考文献：Haboudane et al. (2004)

公式９�/span>MCARI1 = 1.2 * [2.5 * (R₇₉₀- R₆₇₀) - 1.3 * (R₇₉₀- R₅₅₀)]

?**化土壤调整植被指�?/span>Optimized Soil-Adjusted Vegetation Index (OSAVI)

参考文献：Rondeaux et al. (1996)

公式９�/span>OSAVI = (1 + 0.16) * (R₇₉₀- R₆₇₀) / (R₇₉₀- R₆₇₀+ 0.16)

?绿度指数Greenness Index (G)

公式９�/span>G = R₅₅₄/ R₆₇₇

?改进的叶绿素吸收反射指数Modified Chlorophyll Absorption in Reflectance Index (MCARI)

参考文献：Daughtry et al. (2000)

公式９�/span>MCARI = [(R₇₀₀- R₆₇₀) - 0.2 * (R₇₀₀- R₅₅₀)] * (R₇₀₀/ R₆₇₀)

?转换类胡萝卜素指�?/span>Transformed CAR Index (TCARI)

参考文�?/span>９�/span>Haboudane et al. (2002)

公式９�/span>TSARI = 3 * [(R₇₀₀- R₆₇₀) - 0.2 * (R₇₀₀- R₅₅₀) * (R₇₀₀/ R₆₇₀)]

?三角植被指数Triangular Vegetation Index (TVI)

参考文�?/span>９�/span>Broge and Leblanc (2000)

公式９�/span>TVI = 0.5 * [120 * (R₇₅₀- R₅₅₀) - 200 * (R₆₇₀- R₅₅₀)]

?Zarco-Tejada & Miller指数Zarco-Tejada & Miller Index (ZMI)

参考文�?/span>９�/span>Zarco-Tejada et al. (2001)

公式９�/span>ZMI = R₇₅₀/ R₇₁₀

?简单比值色素指�?/span>Simple Ratio Pigment Index (SRPI)

参考文�?/span>９�/span>Pe?uelas et al. (1995)

公式９�/span>SRPI = R₄₃₀/ R₆₈₀

?归一化脱镁作用指�?/span>Normalized Phaeophytinization Index (NPQI)

参考文�?/span>９�/span>Barnes et al. (1992)

公式９�/span>NPQI = (R₄₁₅- R₄₃₅) / (R₄₁₅+ R₄₃₅)

?光化学植被反射指�?/span>Photochemical Reflectance Index (PRI)

参考文�?/span>９�/span>Gamon et al. (1992)

公式９�/span>PRI = (R₅₃₁- R₅₇₀) / (R₅₃₁+ R₅₇₀)

?归一化色素叶绿素指数Normalized Pigment Chlorophyll Index (NPCI)

参考文�?/span>９�/span>Pe?uelas et al. (1994)

公式９�/span>NPCI = (R₆₈₀- R₄₃₀) / (R₆₈₀+ R₄₃₀)

?Carter指数Carter Indices

参考文�?/span>９�/span>Carter (1994)� Carter et al. (1996)

公式９�/span>Ctr1 = R₆₉₅/ R₄₂₀; Ctr2 = R₆₉₅/ R₇₆₀

?结构加强色素指数Structure Intensive Pigment Index (SIPI)

参考文�?/span>９�/span>Pe?uelas et al. (1995)

公式９�/span>SIPI = (R₇₉₀- R₄₅₀) / (R₇₉₀+ R₆₅₀)

?Gitelson and Merzlyak指数Gitelson and Merzlyak Indices

参考文�?/span>９�/span>Gitelson & Merzlyak (1997)

公式９�/span>GM1 = R₇₅₀/ R₅₅₀; GM2 = R₇₅₀/ R₇₀₀

产地９�/span>欧洲