DOI: 10.5281/zenodo.18462658
title: Daily fraction of photosynthetically active radiation (fPAR), edaphic, and weather conditions from 20220410 to 20230409 in Kulen, Cambodia
title: Daily mean and standard deviation of Soil water content, soil temperature, soil saturation extracted electrical conductivity of evergreen forests, regrowth forests, and cashew plantations in Kulen, Cambodia.
title: Daily weather condition data from 20220410 to 20230409 in Kulen, Cambodia.
title: Photosynthetically active radiation (PAR) data from 20220410 to 20230409 in Kulen weather station, Cambodia.
title: Geographic coordinates and elevation of forest inventory and weather station sites in Kulen, Cambodia.

description: Sub-title 1: Daily mean and standard deviation of Soil water content, soil temperature, soil saturation extracted electrical conductivity of evergreen forests, regrowth forests, and cashew plantations in Kulen, Cambodia. (File name: Edaphic_fPAR_Pub.txt)

Sub-title 2: Daily weather condition data from 20220410 to 20230409 in Kulen, Cambodia. (File name: Weather_Pub.txt)

Sub-title 3: Photosynthetically active radiation (PAR) data from 20220410 to 20230409 in Kulen weather station, Cambodia. (File name: PARa_Pub.txt)

Sub-title 4: Geographic coordinates and elevation of forest inventory and weather station sites in Kulen, Cambodia. (File name: Plot_Location_WGS84.txt)


Note: The study area, experimental design, and data collection methods are described in detail in the associated peer-reviewed publication by Sovann et al. (2025; https://doi.org/10.5194/bg-22-4649-2025).Sovann, C., Tagesson, T., Vestin, P., Sakhoeun, S., Kim, S., Kok, S., & Olin, S. (2025). Land-Cover Change Alters Stand Structure, Species Diversity, Leaf Functional Traits, and Soil Conditions in Cambodian Tropical Forests. Biogeosciences, 22(18), 4649-4677. https://doi.org/10.5194/bg-22-4649-2025 
description: File name: Edaphic_fPAR_Pub.txt
Column name notes: 
Weather condition: 

DateTime = Year, month, and day of weather, edaphic, and fraction of photosynthetically active radiation measurements,  
precSum = Daily sum precipitation (mm) measuring at weather station,
AtempM = Daily mean air temperature (ºC) measuring at weather station,
AtempSD = Daily standard deviation air temperature (ºC) measuring at weather station,
Soil water content:

swcM.EF1 = Daily mean soil moisture content measuring 20 cm below ground (SWC, m2 m-2) at evergreen forest plot 1 (EF1),   
swcM.EF3 = Daily mean SWC (m2 m-2) at evergreen forest plot 3 (EF3),   
swcM.RF1 = Daily mean SWC (m2 m-2) at regrowth forest plot 1 (RF1),   
swcM.RF3 = Daily mean SWC (m2 m-2) at regrowth forest plot 3 (RF3),   
swcM.CP2 = Daily mean SWC (m2 m-2) at cashew plantation plot 2 (CP2),   
swcM.CP3 = Daily mean SWC (m2 m-2) at cashew plantation plot 3 (CP3),
swcSD.EF1 = Daily standard deviation SWC (m2 m-2) at EF1,   
swcSD.EF3 = Daily standard deviation SWC (m2 m-2) at EF3, 
swcSD.RF1 = Daily standard deviation SWC (m2 m-2) at RF1, 
swcSD.RF3 = Daily standard deviation SWC (m2 m-2) at RF3,   
swcSD.CP2 = Daily standard deviation SWC (m2 m-2) at CP2,   
swcSD.CP3 = Daily standard deviation SWC (m2 m-2) at CP3, 
Soil temperature:

stempM.EF1 = Daily mean soil temperature measuring 20 cm below ground (Ts, ºC) at EF1, 
stempM.EF3 = Daily mean Ts (ºC) at EF3, 
stempM.RF1 = Daily mean Ts (ºC) at RF1, 
stempM.RF3 = Daily mean Ts (ºC) at RF3, 
stempM.CP2 = Daily mean Ts (ºC) at CP2, 
stempM.CP3 = Daily mean Ts (ºC) at CP3, 
stempSD.EF1 = Daily standard deviation Ts (ºC) at EF1, 
stempSD.EF3 = Daily standard deviation Ts (ºC) at EF3, 
stempSD.RF1 = Daily standard deviation Ts (ºC) at RF1, 
stempSD.RF3 = Daily standard deviation Ts (ºC) at RF3,
stempSD.CP2 = Daily standard deviation Ts (ºC) at CP2, 
stempSD.CP3 = Daily standard deviation Ts (ºC) at CP3, 
Soil saturation extracted electrical conductivity:

secM.EF1 = Daily mean soil saturation extracted electrical conductivity measuring 20 cm below ground (ECs, dS m-1) at EF1,   
secM.EF3 = Daily mean ECs (dS m-1) at EF3,   
secM.RF1 = Daily mean ECs (dS m-1) at RF1,   
secM.RF3 = Daily mean ECs (dS m-1) at RF3,   
secM.CP2 = Daily mean ECs (dS m-1) at CP2,   
secM.CP3 = Daily mean ECs (dS m-1) at CP3,   
secSD.EF1 = Daily standard deviation ECs (dS m-1) at EF1,   
secSD.EF3 = Daily standard deviation ECs (dS m-1) at EF3, 
secSD.RF1 = Daily standard deviation ECs (dS m-1) at RF1,   
secSD.RF3 = Daily standard deviation ECs (dS m-1) at RF3,   
secSD.CP2 = Daily standard deviation ECs (dS m-1) at CP2,   
secSD.CP3 = Daily standard deviation ECs (dS m-1) at CP3, 
Fraction of photosynthetically active radiation:

fParM.EF1 = Daily mean fraction of photosynthetically active radiation intercepted by the stand canopy (fPAR, %) measuring at 1.3 m above ground at EF1, 
fParM.EF3 = Daily mean fPAR (%) at EF3,   
fParM.RF1 = Daily mean fPAR (%) at RF1,   
fParM.RF3 = Daily mean fPAR (%) at RF3, 
fParM.CP2 = Daily mean fPAR (%) at CP2,   
fParM.CP3 = Daily mean fPAR (%) at CP3,   
fParSD.EF1 = Daily standard deviation fPAR (%) at EF1, 
fParSD.EF3 = Daily standard deviation fPAR (%) at EF3, 
fParSD.RF1 = Daily standard deviation fPAR (%) at RF1, 
fParSD.RF3 = Daily standard deviation fPAR (%) at RF3, 
fParSD.CP2 = Daily standard deviation fPAR (%) at CP2, 
fParSD.CP3 = Daily standard deviation fPAR (%) at CP3. 
description: File name: Weather_Pub.txt 
Column name notes: 

Variable = Weather condition variables. They are solar radiation (W m-2), air temperature (ºC), precipitation (mm), max precip rate (mm h-1), wind direction (degrees), wind speed (m s-1), gust speed (m s-1), relative humidity (RH, %), RH Sensor Temp (ºC), atmospheric pressure (kPa), VPD (kPa), reference pressure (kPa), lightning activity (count), lightning distance (km).
DateTime = Year, month, and day of weather conditions 
n_sample = Number of weather condition observations that were utilized to calculate daily mean, median, standard deviation, minimum, maximum, and sum, 
Mean = Daily mean of weather condition variables,     
SD = Daily standard deviation of weather condition variables,
Median = Daily median of weather condition variables, 
Minimum = Daily minimum of weather condition variables, 
Maximum = Daily maximum of weather condition variables, 
Sum = Daily sum of weather condition variables.
description: File name: PARa_Pub.txt 

Column name notes: 



DateTime = Year, month, day, and time of photosynthetically active radiation (PAR) measurements at weather station,

PAR1 = PAR value (µmol m−2 s−1) from sensor 1 at weather station, 

PAR2 = PAR value (µmol m−2 s−1) from sensor 2 at weather station,   

PAR3 = PAR value (µmol m−2 s−1) from sensor 3 at weather station,   

PAR4 = PAR value (µmol m−2 s−1) from sensor 4 at weather station,   

PAR5 = PAR value (µmol m−2 s−1) from sensor 5 at weather station.
description: File name: Plot_Location_WGS84.txt

Column name notes: 



PlotID = Unique identifier of each sampling plot (EF = evergreen forest, RF = regrowth forest, CP = cashew plantation, WS = weather station).

Latitude_WGS84 = Geographic latitude of the plot location, expressed in degrees, minutes, and seconds (DMS; WGS84).

Longitude_WGS84 = Geographic longitude of the plot location, expressed in degrees, minutes, and seconds (DMS; WGS84).

Elevation_m = Elevation of the plot location above mean sea level, in metres.