Open AccessRespiração basal do solo sob três diferentes coberturas vegetais no Paraná
Author(s) -
Luiz Fernando Veronezi,
Angela Michelato Ghizelini,
Vânia Rossetto Marcelino,
Kátia Cylene Lombardi,
Kelly Geronazzo Martins,
Juliana Hanke
Publication year - 2020
Publication title -
ciência e natura
Language(s) - English
Resource type - Journals
eISSN - 2179-460X
pISSN - 0100-8307
DOI - 10.5902/2179460x34582
Subject(s) - edaphic , monoculture , basal area , soil respiration , environmental science , organic matter , eucalyptus , forestry , pinus <genus> , agronomy , zoology , soil water , botany , ecology , biology , soil science , geography
This study evaluated the soil basal respiration (SBR) of three forest types and seasons and their correlation with pedological attributes in the 0-5 cm land layer. Therefore, we selected two areas of commercial tree species in the central-southern Paraná region: one plot of Pinus taeda and one of Eucalyptus dunnii; and a control, a patch of native forest (Mixed Ombrophyllous Forest). We determined the SBR by the alkaline addition method, incubating the samples for seven days. We collected samples in the cool dry season (winter) and in the hot humid season (summer). Soil attributes were determined by a routine analysis (pH, K+, Ca2+, Mg2+, Al3+, P, Matéria Orgânica, areia grossa e areia fina, silte, argila e V%). We observed significant SBR differences only about summer and winter. SBR correlated significantly with organic matter. These results are similar to most of the literature. There was no difference between the forest types about the SBR, showing that even monoculture forests can present carbon fluxes statistically equal to those of an intermediate successional stage native forest. The specific edaphic fauna adapted to each ecosystem may explain the absence of this difference in relation to SBR.