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WATER: Dataset of photosynthesis observed by Li-6400 in the Yingke oasis, Huazhaizi desert steppe and Linze grassland foci experimental areas Chinese Version


The dataset of photosynthesis observed by Li-6400 was obtained in the Yingke oasis, Huazhaizi desert steppe and Linze grassland foci experimental areas.

Parameters included:

CO2R_µml: CO2 viscosity inside the reference lab (µmol CO2 mol-1); CO2S_µml: CO2 viscosity inside the sample room (µmol CO2 mol-1); H2OR_mml: H2O viscosity inside the reference lab (mmol H2O mol-1); H2OS_mml: H2O viscosity inside the sample room (mmol H2O mol-1); Flow_CV%: variation coefficient of Flow_µml (%); RH_R_%: relative humidity inside the reference lab (%); RH_S_%: relative humidity inside the sample room (%); Td_R_%: dew-point temperature inside the reference lab (C); Td_S_%: dew-point temperature inside the sample room (C); Prss_kPa: air pressure (kPa); ParIn_µm: active radiation of interior photosynthesis (µmol m-2 s-1); c: active radiation of interior photosynthesis (µmol m-2 s-1); BLC_moll: boundary layer conductance (mol m-2 s-1); Tblock°C: temperature inside the sample room (°C) (mmol H2O mol-1); Tleaf°C: leaf temperature (°C); HH:MM:SS: time; Program: automatic program mode; CHPWMF:Status word (summary of line J); Battery: battery voltage (V); CO2: CO2 IRGAs; H2O: IRGAs; Pump: pump; Flow: air flow controller; Mixr: CO2 mixer; Fan: fan; Program: automatic program mode; ProgPrgs: AutoProgram step counter; FwMxCrLp: Numerical summary of the four stability flags; totalCV% : See totalCV% under E above; CRagc_mv: Reference CO2 AGC (automatic gain control) signal, in mV; CSagc_mv: Sample CO2 AGC signal; HRagc_mv: Reference H2O AGC signal; HSagc_mv: Sample H2O AGC signal.

Observations were carried out as follows:

(1) Photosynthesis synchronizing with TM in Yingke oasis No. 1 maize plot (three maize plants), No. 4 (5 maize plants) and No. 5 (2 wheat plants) on May 20, 2008.

(2) Barley and alfalfa synchronizing with ASAR and MODIS on May 24, 2008.

(3) Photosynthesis synchronizing with ASAR and MODIS in Yingke oasis maize plot on May 28, 2008.

(4) Photosynthesis synchronizing with WiDAS in Yingke oasis maize plot on May 30, 2008.

(5) Photosynthesis synchronizing with OMIS-II in Yingke oasis maize plot on Jun. 4, 2008.

(6) Photosynthesis synchronizing with OMIS-II in Yingke oasis maize plot on Jun. 16, 2008.

(7) Photosynthesis synchronizing with WiDAS in Yingke oasis maize plot on Jun. 29, 2008.

(8) Photosynthesis synchronizing with WiDAS and TM in Yingke oasis maize plot on Jul. 7, 2008.

(9) Photosynthesis synchronizing with WiDAS in Yingke oasis maize plot on Jul. 11, 2008.

Data, including observation time, instrument parameters and those above mentioned, were archived in the original format of LI-6400, and could be read by .exe and Microsoft Excel.


CitationHelp

Data Citation Xin Xiaozhou, Li Li, Liu Sihan, Su Gaoli, Wen Jianguang, Xia Chuanfu, Zhang Yang, Zhou Chunyan, Zhou Mengwei. WATER: Dataset of photosynthesis observed by Li-6400 in the Yingke oasis, Huazhaizi desert steppe and Linze grassland foci experimental areas. Institute of Remote Sensing Applications, Chinese Academy of Sciences. 2008. doi:10.3972/water973.0185.db


Special Publications

  1. Li X, Li XW, Li ZY, Ma MG, Wang J, Xiao Q, Liu Q, Che T, Chen EX, Yan GJ, Hu ZY, Zhang LX, Chu RZ, Su PX, Liu QH, Liu SM, Wang JD, Niu Z, Chen Y, Jin R, Wang WZ, Ran YH, Xin XZ, Ren HZ. Watershed Allied Telemetry Experimental Research. Journal of Geophysical Research, 2009, 114(D22103), doi:10.1029/2008JD011590.Detail | Download
  2. Wang Liangxu, Wang Shuguo, Ran Youhua. Data Sharing and Data Set Application of Watershed Allied Telemetry Experimental Research. IEEE Geoscience and Remote Sensing Letters, 2014, 11(11):2020-2024. doi:10.1109/LGRS.2014.2319301Detail | Download
  3. Li X, Li XW, Roth K, Menenti M, Wagner W. Preface 'Observing and modeling the catchment scale water cycle'. Hydrology and Earth System Sciences, 2011, 15(2): 597-601. doi:10.5194/hess-15-597-2011.Detail | Download

Limitations

The dataset is generated from the "Watershed Airborne Telemetry Experimental Research (WATER) “, the user must have a clear statement in the article of the original data source and adopt the reference style providing by the metadata in the References section.

Fund

  • National Program on Key Basic Research Project (973 Program) (No. 2007CB714400)
  • The CAS (Chinese Academy of Sciences) Action Plan for West Development Project (No. KZCX2-XB2-09)

Online Resources