TY - Data T1 - Heihe River eco hydrological remote sensing experiment: Li-6400 photosynthetic observation data set in the lower reaches of Heihe River (July 2012) A1 - Wang haibo DO - 10.12072/ncdc.nieer.db2862.2023 PY - 2021 DA - 2021-09-14 PB - National Cryosphere Desert Data Center AB - In this data set, the photosynthesis process of Populus euphratica forest in the experimental area of the lower reaches of Heihe River Basin was observed by Li-6400 photosynthetic instrument. The observation site is located at Populus euphratica station and mixed forest station in Ejina Banner, the downstream core observation area. The observation date is late July 2014. This data set is the original observation data of Li-6400 of Populus euphratica during the observation period. 1. Measurement purpose Photosynthetic data measurement can be used to study plant physiological characteristics. 2. Measuring instrument Measuring instrument: Li-6400 portable photosynthesis measuring instrument. 3. Observation time and place Observation site: Mixed Forest Station Observation time: July 24, 2014 Observation location: Populus euphratica station Observation time: July 25, 2014 to July 31, 2014 4. Data storage and processing Li-6400 data is stored in Excel format. In order to retain the original data, the data is not deleted. During measurement, each time period data is saved as a file and named with date + type DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/e017852e-a518-49d7-bd96-fb6c92e7c22a ER -