pitchpine_pyc

general information

This repository houses data from an experiment in Massachusetts examining the response of Pitch Pine to pyrogenic carbon (PyC) soil amendments. The dataset corresponds to the article Pyrogenic carbon increases pitch pine seedling frowth, soil moisture retention, and photosynthetic intrinsic water use efficiency in the field by Licht and Smith in Frontiers in Forests and Global Change. [link to article to be added following publication]

authors

Jeff Licht (jefflicht64@gmail.com) and Nick Smith (nick.gregory.smith@gmail.com)

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folder descriptions

/data

This folder contains all of the data files.

file descriptions

/data/pitchpine_pyc_biometrics.csv

This file contains stem diameter, plant height, and root length data. The specific column information is:

year: the year the measurement was taken
soil_treatment: the soil treatment, where Control is the untreated control, PyCA is the soil treated with pyrogenic carbon created from recycled feedstock, and PyCF is the soil treated with pyrogenic carbon created from forest materials
stem_diameter: the diameter of the main stem at 5 cm height (cm)
height: the height of the tree (cm)
root_length: the length of longest root (cm)

/data/pitchpine_pyc_foliar_cn_isotopes.csv

This file contains stem circumference, plant height, and root length data. The specific column information is:

individual_id: a unique identifier for each individual tree
year: the year the measurement was taken
soil_treatment: the soil treatment, where Control is the untreated control, PyCA is the soil treated with pyrogenic carbon created from recycled feedstock, and PyCF is the soil treated with pyrogenic carbon created from forest materials
d13c: the carbon-13 isotope discrimination value (per mil)
d15n: the nitrogen-15 isotope discrimination value (per mil)
c_percent: percent carbon in leaves (% or [gC/gLeaf * 100])
n_percent: percent nitrogen in leaves (% or [gN/gLeaf * 100])

/data/pitchpine_pyc_retention.csv

This file contains stem circumference, plant height, and root length data. The specific column information is:

year: the year the measurement was taken
soil_treatment: the soil treatment, where Control is the untreated control, PyCA is the soil treated with pyrogenic carbon created from recycled feedstock, and PyCF is the soil treated with pyrogenic carbon created from forest materials
retention: moisture retained by soil during dry down-to-moisten up bench test (unitless; 0-1)

/data/pitchpine_pyc_soil_nutrients_cec_ph.csv

This file contains soil nutrient, cation exchange capacity (CEC), and pH data. The specific column information is:

year: the year the measurement was taken
soil_treatment: the soil treatment, where Control is the untreated control, PyCA is the soil treated with pyrogenic carbon created from recycled feedstock, and PyCF is the soil treated with pyrogenic carbon created from forest materials
Ca: soil calcium (mg kg-1)
P: soil phosphorus (mg kg-1)
Mg: magnesium (mg kg-1)
K: soil potassium (mg kg-1)
Al: soil aluminum (mg kg-1)
Zn: soil zinc (mg kg-1)
CEC: soil cation exchange capacity (meq 100 g-1)
pH: soil pH (-log[H+])

/data/pitchpine_pyc_foliar_nutrients.csv

This file contains foliar nutrient data. The specific column information is:

year: the year the measurement was taken
soil_treatment: the soil treatment, where Control is the untreated control, PyCA is the soil treated with pyrogenic carbon created from recycled feedstock, and PyCF is the soil treated with pyrogenic carbon created from forest materials
Ca: soil calcium (mg kg-1)
P: soil phosphorus (mg kg-1)
Mg: magnesium (mg kg-1)
K: soil potassium (mg kg-1)
Al: soil aluminum (mg kg-1)
Zn: soil zinc (mg kg-1)

/data/pitchpine_pyc_charcoal_nutrients_cec_ph.csv