Full name:
CLSoilMaps: A national soil gridded product for Chile
Version:
v1
Organization or Author:
Mauricio Galleguillos, Diego Dinamarca, Oscar Seguel, Carlos Faundez
Abstract:
CLSOILMAPS presents a newly gridded database of soil physical properties and soil hydraulic parameters based on digital soil mapping (DSM) techniques and a pedotransfer function (Rosetta V3) at close to 100m of spatial resolution covering the continental area of Chile and binational basins shared with Argentina for six standardized depths following GlobalSoilMap project standards. Maps were based on a newly compiled soil profile database covering different land use conditions (e.g. agricultural, forest, peatland, shrubland, and Andean grassland), and several environmental covariates based on the SCORPAN soil forming factors. DSM models showed moderate to good accuracies with R2 ranging from 0.76-0.88 for bulk density, 0.50-0.76 for clay, and 0.67-0.84 for sand. Silt maps were derived from clay and sand predictions taking advantage of the compositional nature of the particle size fraction. Field capacity, permanent wilting point, total available water capacity, and Van Genuchten´s soil hydraulic parameters were derived with Rosetta V3 algorithm.
Service location:
Geographical Coverage:
National - Chile
GIS Data Type:
Raster
Spatial resolution:
100 m (100 x 100 m pixel)
Publication date:
2022-12-20
Reference period-start:
1996
Reference period-stop
2021
License:
Soil Properties:
Bulk Density, USDA Texture, Available Water Holding Capacity, silt, Clay, sand, Saturated Hydraulic Conductivity, Permanent Wilting Point, Available Moisture, Field Capacity
Soil deph coverage (cm):
0-200 cm
Citation:
Galleguillos, M., Dinamarca, D., Seguel, O., & Faundez, C. (2022). CLSoilMaps: A national soil gridded product for Chile [Data set]. In Earth Science System Data (Versione V1). Zenodo. https://doi.org/10.5281/zenodo.7464210
Overview
The original dataset also contains information on: residual water content (cm3/cm3), saturated water content (cm3/cm3), "alpha" shape parameter (1/cm), "n" shape parameter. See Zenodo.org
| Name | Original name | Unit of measurement | Description |
|---|---|---|---|
| Available Water Holding Capacity | Available water capacity | mm | Available water capacity as h*(FC-PWP), h = horizon depth in mm |
| Available Moisture | Available moisture | cm3/cm3 | Available Moisture as FC-PWP |
| Field Capacity | Field capacity | cm3/cm3 | Field capacity at 330kPa |
| Permanent Wilting Point | Permanent wilting point | cm3/cm3 | Permanent wilting point at 15000kPa |
| Saturated Hydraulic Conductivity | Saturated hydraulic conductivity | cm/day | saturated hydraulic conductivity |
| Bulk Density | Bulk density | g/cm3 | Bulk density of the fine fraction |
| Clay | Clay | % | Clay content |
| sand | Sand | % | Sand content |
| silt | Silt | % | Silt content |
| USDA Texture | Textural class | - | Textural Class expressed as 1 = Clay, 2 = Silty Clay, 3 = Sandy Clay, 4 = Clay Loam, 5 = Silty Clay Loam, 6 = Sandy Clay Loam, 7 = Loam, 8 = Silty Loam, 9 = Sandy Loam, 10 = Silt, 11 = Loamy Sand, 12 = Sand |