Rev Bras Cienc Solo 2017;41:e0150407 Article Division – Soil Use and Management | Commission – Land Use Planning Characteristics of Soils in Highland Wetlands as a Subsidy to Identifying and Setting their Limits Maria Tereza Warmling(1), Jackson Adriano Albuquerque(2)*, Jaime Antonio de Almeida(2) and Maria Izabel Warmling(1) (1) Universidade do Estado de Santa Catarina, Departamento de Solos e Recursos Naturais, Programa de Pós-graduação em Ciência do Solo, Lages, Santa Catarina, Brasil. (2) Universidade do Estado de Santa Catarina, Departamento de Solos e Recursos Naturais, Lages, Santa Catarina, Brasil. ABSTRACT: Palustrine areas and wetlands in particular are fragile ecosystems, with high biodiversity and high ecological productivity, and they provide benefits to society. The aim of this study was to describe and classify the main soils occurring in the wetlands of the Southern Plateau of Santa Catarina, and propose criteria for identification of hydromorphic environments as an aid in demarcation of their boundaries. Soils of four wetlands, in the municipalities of Bom Jardim da Serra, Bom Retiro, Lages, and Painel were described, collected, and taxonomically classified. A transection was demarcated in each one in which soils were analyzed in sites with different degrees of hydromorphism, corresponding to the inner, transition, and outer areas. In hydromorphic areas, the content of organic matter in the soil is higher than in non-hydromorphic areas, which influences the color and classification of the soils. In these soils, Aquents, Aquepts, and * Corresponding author: Histosols predominate, and Udepts predominate in the outer area. The drainage class E-mail:
[email protected] and the higher chroma in the subsurface horizons of the Udepts indicate that they are Received: October 20, 2015 outside the boundaries of the wetlands.