Diffuse Reflectance Spectroscopy (Vis-Nir-Swir) as a Promising Tool for Blue Carbon Quantification in Mangrove Soils: A Case of Study in Tropical Semiarid Climatic Conditions

Author(s)

Romero, Danilo J. ^[1] ; Nobrega, Gabriel N. ^[1] ; Otero, Xose L. ^[2] ; Ferreira, Tiago O. ^[1]

Affiliation

^[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Soil Sci Dept, Ave Padua Dias 11, Piracicaba, SP - Brazil

^[2] Univ Santiago de Compostela, Fac Biol, Dept Edafol & Quim Agr, Santiago 5782 - Spain

• Document type: Journal article
• Source: Soil Science Society of America Journal; v. 81, n. 6, p. 1661-1667, NOV-DEC 2017.
• Web of Science Citations: 0

Abstract

The assessment of the soil organic carbon (SOC) stocks in mangrove ecosystems is essential for coastal management activities seeking the mitigation of CO2 emissions. However, the wet chemical analysis conventionally used to quantify SOC may overestimate SOC content due to oxidation of reduced compounds. This work focused on the use of diffuse reflectance spectroscopy (DRS) for predicting SOC in mangrove forest areas. When used properly, DRS may be, in some cases, a more accurate and more efficient method for the determination of SOC in mangrove soils than conventional analytical approaches. Furthermore, variable selection may simplify and improve prediction accuracy, reducing collinearity in the dataset used and allowing better SOC quantification through more interpretable and robust models. (AU)

• FAPESP's process: 14/11778-5 - Subaqueous soils from Brazilian seagrass beds: biogeochemistry, genesis and classification
• Grantee: Gabriel Nuto Nóbrega
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/21026-6 - Brazilian coastal wetland soils (hypersaline tidal flats and seagrasses): soil genesis and biogeochemistry of Fe, Si and C
• Grantee: Tiago Osório Ferreira
• Support Opportunities: Regular Research Grants