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CHLSOC: the Chilean Soil Organic Carbon database, a multi-institutional collaborative effort

2020; Copernicus Publications; Volume: 12; Issue: 1 Linguagem: Inglês

10.5194/essd-12-457-2020

1866-3516

Marco Pfeiffer, José Padarian, Rodrigo Osorio, Nelson Bustamante, Guillermo F. Olmedo, Mário Guevara, Felipe Aburto, Francisco Albornoz, Mónica Antilén, Elías Araya, Eduardo C. Arellano, Maialen Barret, Juan Alberto Barrera, Pascal Boeckx, Margarita Briceño, Sally Bunning, Léa Cabrol, Manuel Casanova, Pablo Cornejo, Fabio Corradini, Gustavo Curaqueo, Sebastian Döetterl, Paola Durán, Mauricio Escudey, Angelina Espinoza, Samuel Francke, Juan Pablo Fuentes, Marcel Fuentes, Gonzalo Gajardo, Rafael A. García, Audrey Gallaud, Mauricio Galleguillos, Andrés González Gómez, Marcela Hidalgo, Jorge Ivelic-Sáez, Lwando Mashalaba, Francisco Matus, Francisco Meza, Marı́a de la Luz Mora, Jorge Andrés Tovar Mora, C. Muñoz, Pablo Norambuena, Carolina Olivera, Carlos Ovalle, Marcelo Panichini, Aníbal Pauchard, Jorge F. Pérez‐Quezada, Sergio Radic, José Naranjo Ramírez, Nicolás Riveras, Germán Ramos Ruiz, Osvaldo Salazar, Iván Salgado, Óscar Seguel, María de los Ángeles Sepúlveda, Carlos A. Sierra, Yasna Tapia, Francisco Herrera Tapia, Balfredo Toledo, José Miguel Torrico, Susana Valle, Rodrigo Vargas, M. J. Wolff, Erick Zagal,

Geochemistry and Geologic Mapping

Abstract. A critical aspect of predicting soil organic carbon (SOC) concentrations is the lack of available soil information; where information on soil characteristics is available, it is usually focused on regions of high agricultural interest. To date, in Chile, a large proportion of the SOC data have been collected in areas of intensive agricultural or forestry use; however, vast areas beyond these forms of land use have few or no soil data available. Here we present a new SOC database for the country, which is the result of an unprecedented national effort under the framework of the Global Soil Partnership. This partnership has helped build the largest database of SOC to date in Chile, named the Chilean Soil Organic Carbon database (CHLSOC), comprising 13 612 data points compiled from numerous sources, including unpublished and difficult-to-access data. The database will allow users to fill spatial gaps where no SOC estimates were publicly available previously. Presented values of SOC range from 6×10-5 % to 83.3 %, reflecting the variety of ecosystems that exist in Chile. The database has the potential to inform and test current models that predict SOC stocks and dynamics at larger spatial scales, thus enabling benefits from the richness of geochemical, topographic and climatic variability in Chile. The database is freely available to registered users at https://doi.org/10.17605/OSF.IO/NMYS3 (Pfeiffer et al., 2019b) under the Creative Commons Attribution 4.0 International Public License.