PlantPen便携式NDVI植被指数测量仪​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这两种应用为广泛的植被指数。用户也可以定制其他参数

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

叶绿素含量快速检测

植物光合研究

早期胁迫检测

氮素利用效率研究

●技术参数

PlantPen便携式NDVI植被指数测量仪

PlantPen NDVI 310：归一化植被指数NDVI = (RNIR – RRED) / (RNIR + RRED)

测量光：内置双波长光源，PlantPen PRI 210：531nm和570nm；PlantPen NDVI 310：635nm和760nm

检测波长：PlantPen PRI 210：500 – 600 nm；PlantPen NDVI 310：620-750 nm

通讯：蓝牙1.1，USB

存储：16M

数据存储：100,000个

显示：图形显示

键盘：密封防水设计2键

电源：可充电锂电池，USB充电，连续工作70小时，低电报警

自动关机：5分钟无操作

尺寸：135×65×33 mm

重量：188g

操作环境：温度： 0 ～ 55 ºC; 相对湿度： 0 ～95 % (无冷凝)

存储条件：温度：-10 ～ 60 ºC;相对湿度：0 ～ 95 % (无冷凝)

●参考文献

1. K Jabran, et al. 2018. High carbon dioxide concentration and elevated temperature impact the growth of weeds but do not change the efficacy of glyphosate. Pest Management Science 74(3): 766-771

2. K Trnková, et al. 2017. Desiccation‐induced changes in photochemical processes of photosynthesis and spectral reflectance in Nostoc commune (Cyanobacteria, Nostocales) colonies from polar regions.Phycological Research 65(1): 44-50

3. V Leemans , et al. 2017. Estimation of leaf nitrogen concentration on winter wheat by multispectral imaging.SPIE Commercial + Scientific Sensing and Imaging

4. Y Fenghua, et al. 2016. Models for estimating the leaf NDVI of japonica rice on a canopy scale by combining canopy NDVI and multisource environmental data in Northeast China. International Journal of Agricultural and Biological Engineering 9(5): 132-142

5. C Zhang, et al. 2016. Affecting Factors and Recent Improvements of the Photochemical Reflectance Index (PRI) for Remotely Sensing Foliar, Canopy and Ecosystemic Radiation-Use Efficiencies. Remote Sensing 8(9): 1-33

6. LLR Mendonçaa, et al. 2016. Management of Meloidogyne javanica with biological pesticides and oils in a lettuce field. Nematoda 3: e152015

7. R Calderón, et al. 2016. Soil temperature determines the reaction of olive c*rs to Verticillium dahliae pathotypes. PLOS ONE 9(10): e110664

8. M Barták, et al. 2015. Effect of dehydration on spectral reflectance and photosynthetic efficiency inUmbilicaria arctica and U. hyperborean. Biologia Plantarum 59(2): 357-365