test_extrapolation: Test differences between observed and extrapolated stocks

In BlueCarbon: Estimation of Organic Carbon Stocks and Sequestration Rates from Soil Core Data

Test differences between observed and extrapolated stocks

Description

Subset those cores that reach the standardization depth and estimates the stock (observed stock), estimate the stock from the linear relation of organic carbon accumulated mass and depth using the 90, 75, 50 and 25% top length of the indicated standardization depth. Compares the observed stock with the estimated stocks by extrapolation.

Usage

test_extrapolation(
  df = NULL,
  depth = 100,
  core = "core",
  mind = "mind_corrected",
  maxd = "maxd_corrected",
  dbd = "dbd",
  oc = "eoc"
)

Arguments

df	A data.frame with, at least, columns: core, mind (minimum depth of the sample), maxd (maximum depth of the sample), dbd (dry bulk density), oc (organic carbon %)
depth	Number Standardization soil depth, by default 100 cm.
core	Character Name of the column reporting core ID.
mind	Character Name of the column reporting the minimum depth of each sample.
maxd	Character Name of the column reporting the maximum depth of each sample.
dbd	Character Name of the column reporting dry bulk density.
oc	Character Name of the column reporting organic carbon concentrations.

Value

A data.frame with the observed and extrapolated stocks. A plot with comparisons.

Examples

bluecarbon_decompact <- decompact(bluecarbon_data)
oc <- estimate_oc(bluecarbon_decompact)
out <- test_extrapolation(oc[[1]])

BlueCarbon documentation built on April 3, 2025, 10:58 p.m.