Proposta de trilha interpretativa e interdisciplinar em fragmento florestal urbano em Medianeira – PR: bosque Sepé-Tiaraju

Abstract

The present work seeks to show the importance of ecosystem services offered by an urban forest fragment – Bosque Sepé-Tiaraju – in the municipality of Medianeira – PR, with the main objective of proposing an interdisciplinary interpretative trail project, with a view to environmental education. Through botanical, ecosystemic, edaphic and educational research, we sought to identify the arboreal individuals around a trail in the woods, determine the physicochemical parameters of the soil and prepare an integrative project script for High School, Area of Sciences of the Nature and its Technologies. An attempt was also made to illustrate, through graphic representation, the proposed trail in the forest and to present, through 5 panels, the ecosystem aspects in an interdisciplinary way with the integrative project. The suitability of using the trail in the fragment, through the integrative project, can significantly contribute to the learning of biology, physics and chemistry through active, motivating and instigating methodologies, so that students develop an interest in preserving the environment and services ecosystems generated by the forest. 70 tree individuals were found on the trail, distributed in 34 species of 32 genera, from 19 different botanical families, with 30 native species. The edaphic aspects highlighted in the form of panels were the concentration of iron in the soil, which averaged 15%. Organic carbon indices averaged 7% and soil pH was around 5, slightly acidic, at the collection points. Phosphorus concentration averaged 87.1 mg/Kg. Five ecosystem aspects were highlighted through panels, which encompass concepts about the Semideciduous Seasonal Forest, soil, fauna and flora interaction, botany and nutrient cycling, and it was concluded that the study trail conserves structural aspects and brings together typical species of the Seasonal Forest Semidecidual. The ecosystem services provided by the fragment are extremely important to the living beings that depend on it directly or indirectly.