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Load NCSS / KSSL pedons with reference USDA Soil Taxonomy classification

Source: R/benchmark-loaders.R
load_kssl_pedons.Rd

Reads the KSSL pedon CSV export (typically named NCSS_Pedon_Layer.csv or similar) plus the lab-data CSV, joins on pedon_key, and assembles a list of PedonRecord objects. The published USDA Soil Taxonomy classification (from the Series or Subgroup field) is attached as pedon$site$reference_usda.

Usage

load_kssl_pedons(pedon_csv, layer_csv, head = NULL, verbose = TRUE)

Arguments

pedon_csv

Path to the pedon-level CSV (one row per profile, with site-level metadata + classification).

layer_csv

Path to the layer-level CSV (one row per horizon, with horizon properties).

head

Optional integer; if not NULL, returns only the first head pedons (useful for parser validation).

verbose

If TRUE (default), emits a summary of the load.

Value

A list of PedonRecord objects.

Details

KSSL is the de-facto standard for validating USDA Soil Taxonomy keys (~50k profiles, lab-grade analytical data, professional pedon descriptions). Get the export from https://ncsslabdatamart.sc.egov.usda.gov/.