PlantPen便攜式NDVI植被指數測量儀?是一種快速測量植物反射光譜指數的野外便攜式儀器。PlantPen的兩種標準版配置分別測量NDVI和PRI這兩種應用為廣泛的植被指數。用戶也可以定制其他參數

PlantPen NDVI 310：NDVI (Normalized Difference Vegetation Index)歸一化植被指數是通過計算植物葉片對紅光和近紅外兩個波長光反射而得到的參數，是反映植物葉綠素含量的一個重要參數。葉綠素會強烈吸收紅光用于光合作用，而葉片細胞結構會強烈反射近紅外光。因此，NDVI與光合能力直接相關，從而反映植物冠層的能量吸收狀況。

●應用領域

葉綠素含量快速檢測

植物光合研究

早期脅迫檢測

氮素利用效率研究

●技術參數

PlantPen便攜式NDVI植被指數測量儀

PlantPen NDVI 310：歸一化植被指數NDVI = (RNIR – RRED) / (RNIR + RRED)

測量光：內置雙波長光源，PlantPen PRI 210：531nm和570nm；PlantPen NDVI 310：635nm和760nm

檢測波長：PlantPen PRI 210：500 – 600 nm；PlantPen NDVI 310：620-750 nm

通訊：藍牙1.1，USB

存儲：16M

數據存儲：100,000個

顯示：圖形顯示

鍵盤：密封防水設計2鍵

電源：可充電鋰電池，USB充電，連續工作70小時，低電報警

自動關機：5分鐘無操作

尺寸：135×65×33 mm

重量：188g

操作環境：溫度： 0 ～ 55 ºC; 相對濕度： 0 ～95 % (無冷凝)

存儲條件：溫度：-10 ～ 60 ºC;相對濕度：0 ～ 95 % (無冷凝)

●參考文獻

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 crs 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