Saprolitologia aplicada à gênese e às implicações ambientais de regolitos do Estado de Pernambuco

Ficha de Boana freicanecae

“…Endêmica do Brasil: Sim Boana freicanecae é endêmica do Brasil e possui distribuição isolada de todas as outras espécies do grupo, sendo restrita às florestas de altitude do nordeste do Brasil, na região denominada Planalto da Borborema (Carnaval & Peixoto, 2004;Cardoso et al, 2006;Roberto et al, 2017). Sua localidade-tipo é na Serra do Quengo (700 metros acima do nível do mar), na Reserva Particular do Patrimônio Natural (RPPN) Frei Caneca, no município de Jaqueira, estado de Pernambuco (Carnaval & Peixoto, 2004;Santos, 2009). B. freicanecae.…”

Field Perception of the Boundary Between Soil and Saprolite by Pedologists and its Differentiation Using Mathematical Models

“…The data were collected from 25 regolith profiles (P1 to P25) described by Guerra (2015) and Santos (2015) in their thesis, summing up to 137 horizons and layers, developed from: granite, syenite, gneiss, schist, sandstone, and siltstone (Table 1).…”

“…The particle density (Pd) was determined in Santos (2015) by the alcohol volumetric method (Claessen, 1997) and in Guerra (2015) using the helium pycnometer method (Danielson and Sutherland, 1986). The total porosity (TP) was estimated from the values of the bulk density (soil or saprolite) and the particle density (Pd) by the equation 2:…”

“…The selective extractions of iron were done with the dithionite-citrate-bicarbonate (Fe DCB ) and the ammonium oxalate (Fe OA ) methods described in Mehra and Jackson (1960) and (1) P01-P12 (Guerra, 2015) and P13-P25 (Santos, 2015); the order of the profiles presented here is not the same as the theses. Match (paper/theses).…”

“…In Guerra (2015), P01 = P03, P02 = P02, P03 = P05, P04 = P06, P05 = P08, P06 = P09, P07 = P10, P08 = P11, P09 = P12, P10 = P13, P11 = P14, P12 = P15. In Santos (2015), P13 to P25 corresponds P01 to P13 in the thesis.…”