Plot NDVI_From 2018

The progression in the vegetation greenness (Normalized Difference Vegetation Index; NDVI) is followed in the plant phenology plots on a weekly basis. NDVI is measured by a RapidSCAN CS-45 Handheld System and scans are conducted by moving the sensor steadily forward (ca. 1 meter per second) approximately 75 cm above the vegetation. This results in a measuring footprint of approximately 10 x 45 m. For further details, please refer to the newest BioBasis manual available at the website.本研究每周对植物物候样地内的植被绿度（归一化植被指数，Normalized Difference Vegetation Index，简称NDVI）变化开展追踪监测。NDVI数据由RapidSCAN CS-45手持式系统（RapidSCAN CS-45 Handheld System）采集，测量过程中需将传感器以约1米每秒的速度平稳前移，并保持传感器位于植被上方约75厘米处。该操作将形成约10×45米的测量覆盖范围。如需了解更多细节，请参阅该网站上发布的最新BioBasis手册。