Dataset DOI: 10.5061/dryad.k98sf7mpq

Description of the data and file structure

Files and variables

File: Mutiti_et_al_standard_soil_bulk_density_data.csv

Description: File containing values used to determine soil bulk density. 

Variables

• Sample ID: Unique identifier of each soil sample
• Weight (g): the weight of the dried soil sample in grams
• Vol (cm3): the volume of the soil sample in cubic centimeters
• Db (g/cm3): bulk density calculated by dividing weight by volume

File: Mutiti_et_al_standard_soil_chemical_results.csv

Description: File containing results of the soil analysis performed by Clemson University Agricultural Services lab

Variables

• Sample ID: Description of each soil sample
• Clemson #: unique number assigned to each soil sample when sending samples to the professional lab for analysis
• SoilpH: pH of the soil sample
• BufferpH: buffer pH of the soil sample
• P (Ibs/A): amount of phosphorus
• K (Ibs/A): amount of potassium
• Ca (Ibs/A):amount of calcium
• Mg (Ibs/A): amount of magnesium
• Zn (Ibs/A):amount of zinc
• Mn (Ibs/A): amount of manganese
• Cu (Ibs/A): amount of copper
• B (Ibs/A): amount of boron
• Na (Ibs/A): amount of sodium
• CEC (meg/100 g): cation exchange capacity of the sample
• Acidity (meg/100 g): acidity of the soil
• Ca %: percent of calcium relative to total bases
• Mg %: percent of magnesium relative to total bases
• K %: percent of potassium relative to total bases
• Na %: percent of sodium relative to total bases
• Total %: total base saturation

File: Mutiti_et_al_vegetation_sampling_data.csv

Description: File containing the field sampling data for the vegetation

Variables

• Transect #: Transect number
• Sample #: Sample number 
• Quadrant #: quadrant number at sampling point
• Plant ID: plant identification by its common name
• Tree DBH (cm): diameter (in cm) of the tree at 1.37 meters.  Values separated by commas indicate trees with two or more stems
• Tree Dist. (m): distance to the tree in meters from the sampling point along the transect
• Sapling ID: identification of a sapling (diameter less than 5 cm) by its common name
• Sapling DBH (cm): diameter (in cm) of sapling at 1.37 meters
• Sapling Dist. (m): distance to the sapling in meters from the sampling point along the transect
• Dead DBH (cm): diameter (in cm) of a dead tree in a quadrant
• Dead Dist. (m):  distance to the dead tree in meters from the sampling point along the transect
• Privet DBH (cm): diameter (in cm) of the largest privet shrub in a quadrant
• Privet Dist. (m): distance to the largest shrub in meters from the sampling point along the transect

Empty cells in all the variables starting from "Tree DBH" indicate no data

File: Mutiti_et_al_size_particle_analysis_data.csv

Description: File with the raw data collected during the size particle determination and the calculated percent of clay, silt and sand

Variables

• Blank density: density reading of the cylinder containing only water and the sodium hexametaphosphate used to disperse the soil samples
• Stand type: the vegetation block from which the sample was collected
• Sample #: what sample number is being analyzed
• Density1: first density (g/cm³) reading for a sample at 40 seconds
• Density2: second density (g/cm³) reading for a sample at 40 seconds
• Density3: third density (g/cm³) reading for a sample at 40 seconds
• Density4: fourth density (g/cm³) reading for a sample at 40 seconds. Empty cells indicate no data
• Correction: the correction factor determined by combining the blank density value and temperature
• Temp (40s): temperature (°F) of the sample at 40 seconds
• Corrected density1: corrected density (g/cm³) of a sample at 40 seconds
• Uncorrected density (2hr): density (g/cm³) of a sample at 2 hours
• Temp (2hr): temperature (°F) of a sample at 2 hours
• Corrected density2: corrected density (g/cm³) of a sample at 2 hours
• Sample weight: weight of a sample in grams
• %Clay: calculated percent clay
• %Silt: calculated percent silt
• % Sand: calculated percent sand

File: Mutiti_et_al_soil_organic_carbon_data.csv

Description: File contains the weights of soil samples after oven drying and ashing. These are the values used to determine percent organic matter and organic carbon

Variables

• Sample ID: Unique identifier of each sample
• Stand: Vegetation stand where the sample was collected
• Depth (cm): sample depth in cm (5 = 0 to 5cm; 10 = 5 to 10 cm; 15 = 10 to 15 cm)
• R1 Soil Weight (105C) g: first replication sample weight in grams after oven drying
• R1 Soil Weight (360C) g: first replication sample weight in grams after ashing
• R2 Soil Weight (105C) g: second replication sample weight in grams after oven drying
• R2Soil Weight (360C) g: second replication sample weight in grams after ashing
• R3 Soil Weight (105C) g: third replication sample weight in grams after oven drying
• R3 Soil Weight (360C) g: third replication sample weight in grams after ashing
• R4 Soil Weight (105C) g: fourth replication sample weight in grams after oven drying
• R4 Soil Weight (360C) g: fourth replication sample weight in grams after ashing

File: Mutiti_et_al_total_carbon_elemental_analysis_data.csv

Description: File containing the total carbon values determined by an elemental analyzer from the University of Georgia's  Agricultural & Environmental Services Laboratories

Variables

• Sample ID: Unique sample identifier
• Stand: Vegetation stand where the sample was collected
• Depth (cm): sample depth in cm (5 = 0 to 5cm; 10 = 5 to 10 cm; 15 = 10 to 15 cm)
• Lab: The number assigned to each sample by the lab performing the analysis
• Sample: sample number
• % C: percent total carbon