This README.txt file was generated by Lishan Ran (Department of Geography, HKU).

-------------------
GENERAL INFORMATION
-------------------

1. This is the dataset for our research on riverine carbon export and greenhouse gas emissions from Jing River catchment on the Chinese Loess Plateau. Field sampling and laboratory analysis were financially supported by the Research Grants Council of Hong Kong (grants: 27300118, 17300619, and 17300621) and the National Natural Science Foundation of China (grant: 41807318). 

2. Contact information

    Lishan Ran
    Department of Geography, HKU
    Email:lsran@hku.hk

---------------------
DATA DESCRIPTION
---------------------

For the Sheet 'Streams':
This sheet includes water quality and GHG concentrations and effluxes at stream sites in the Jing River catchment during four sampling campaigns (August and October 2018 and March and June 2019). There were thirty nine (39) stream sites, from R1 to R39. Symbol ‘-’ represent no data.
Column A: Sampling site from R1 to R39
Column B: Location of the sampling site (Longitue E)
Comumn C: Location of the sampling site (Latitude N)
Columns D, M, V and AE: pH in surface water
Columns E, N, W and AF: Concentration of dissolved oxygen (DO)
Comumns F, O, X and AG: Concentration of dissolved organic carbon (DOC)
Columns G, P, Y and AH: Concentration of dissolved inorganic carbon (DIC)
Columns H, Q, Z and AI: CO2 partial pressure (pCO2) in surface water
Comumns I, R, AA and AJ: CO2 emission flux
Columns J, S, AB and AK: Dissolved CH4 concentration 
Columns K, T, AC and AL: CH4 emission flux (diffusion)
Comumns L, U, AD and AM: CH4 emission flux (ebullition)

For the Sheet 'Reservoirs':
This sheet includes water quality and GHG concentrations and effluxes at reservoir sites in the Jing River catchment during four sampling campaigns (August and October 2018 and March and June 2019). There were five (5) reservoir sites, from S1 to S5.
Column A: Sampling site from S1 to S5
Column B: Location of the sampling site (Longitue E)
Comumn C: Location of the sampling site (Latitude N)
Columns D, M, V and AE: pH in surface water
Columns E, N, W and AF: Concentration of dissolved oxygen (DO)
Comumns F, O, X and AG: Concentration of dissolved organic carbon (DOC)
Columns G, P, Y and AH: Concentration of dissolved inorganic carbon (DIC)
Columns H, Q, Z and AI: CO2 partial pressure (pCO2) in surface water
Comumns I, R, AA and AJ: CO2 emission flux
Columns J, S, AB and AK: Dissolved CH4 concentration 
Columns K, T, AC and AL: CH4 emission flux (diffusion)
Comumns L, U, AD and AM: CH4 emission flux (ebullition)

For the Sheet 'DOC':
This sheet includes dissolved organic carbon (DOC) concentration measured at Jingcun gauge in the Jing River catchment.
Column A: Sampling date		
Column B: Total suspended sediment concentration
Column C: Flow discharge 
Column D: DOC concentration

For the Sheet 'DIC':
This sheet includes dissolved inorganic carbon (DIC) concentration measured at Jingcun gauge in the Jing River catchment.
Column A: Sampling date
Column B: DOC concentration

For the Sheet 'POC':
This sheet includes particulate organic carbon (POC) content in sediments measured at Jingcun gauge in the Jing River catchment.
Column A: Sampling date
Column B: POC content (dry weight)

For the Sheet 'Soil and sediment cores_OC':
This sheet includes soil organic carbon (SOC) in soil cores (T) and POC in sediment cores (S) sampled in the Jing River catchment.
Soil and sediment cores_OC
Columns A, C, E, G, J, L, N: Depth of the core in cm
Columns B, D, F, H, K, M, O: SOC or POC content (dry weight)

Note: Data sheets 'Streams' and 'Reservoirs' are also available at Ran, Lishan (2021): Greenhouse gas emissions from the Jing River network in China. HKU Data Repository. Dataset. https://doi.org/10.25442/hku.13668818.v1.