1） Objectives of observation
The photosynthetic datasets can be used in the study of plant physiological ecology characteristic and the simulation and validation for the eco-hydrological models.
2） Instrument and theory of the observation
Measuring instrument: LI-6400XT Portable Photosynthesis System.
Measuring theory: Using the infrared gas analyzer to measure the change of CO2 concentration, and then measuring the differences of CO2 concentration between the sample chamber and the referenced chamber so as to acquire the net productivity of the leaf.
3） Time and site of observation
Observation site in the Populus forest station.
Observation time: 2014-07-24
Observation site in the mixed forest station.
Observation time: From 2014-07-25 to 2014-07-31.
4） Data processing
The raw data of LI-6400 were archived in text format and can be opened by text editor or excel, the preprocessed data were in Excel format. Every time period of observation was archived in a single document, named as “date + type”.
Wang Haibo, Ma Mingguo, Song Yi, Ren Zhiguo, Zhou Shengnan, Li Yimeng. HiWATER: Dataset of photosynthesis observed by LI-6400 in the lower reaches of the Heihe River Basin. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences. 2015. 10.3972/hiwater.266.2015.db (Download: RIS | Bibtex)
The dataset is generated from the "Heihe Watershed Allied Telemetry Experimental Research (HiWATER)". User must have a clear statement in the article of the original data source and cite the dataset and papers in the Citation section.