Suchergebnisse

The conservation of urban green areas provides benefits of mitigation and adaptation to climate change, in addition to offering ecosystem services for local populations, where the economic valuation of the goods is a reliable alternative for this purpose. The objective of this study was to determine the total biomass and the economic value of the Carbon reserve of the arboreal resource in the Dr. Claudio Pavetti Park. A forest inventory was carried out identifying and measuring all the trees with d1.30 cm ≥ 10 cm. For the estimation of the total biomass, the allometric equation for the Humid Chaco ecoregion was applied. For the economic valuation, the average price of the first semester of 2020 was used, considering the value of the Emission Rights of the European Union (EUA) reflected in the Stock Exchange of the European CO2 Trading System (SENDECO2). 94 individuals were identified belonging to 22 species, 21 genera and 13 botanical families. The species that obtained the highest accumulated Carbon value were Peltophorum dubium (54.62 Mg ha-1), Anadenanthera colubrina var. cebil (23.56 Mg ha-1), Pterogyne nitens (18.75 Mg ha-1) and Parapiptadenia rigida (12.21 Mg ha-1). The estimated total biomass was 291.58 Mg ha-1, which is equivalent to 137.04 Mg ha-1 of C and 502.49 Mg ha-1 of CO2 eq. The economic value of the ecosystem service of the reserve for C amounts to US$ 168.11 ha-1. ; La conservación de las áreas verdes urbanas proporcionan beneficios de mitigación y adaptación al cambio climático, además de ofrecer servicios ecosistémicos para las poblaciones locales, donde la valoración económica de los bienes resulta una alternativa confiable para dicha finalidad. El objetivo del presente estudio fue determinar la biomasa total y el valor económico de la reserva de Carbono del recurso arbóreo del Parque Dr. Claudio Pavetti. Fue realizado un inventario forestal identificando y midiendo todos los árboles con d1,30 cm ≥ 10 cm. Para la estimación de la biomasa total se aplicó la ecuación alométrica para la ...

The objective of this work was to analyze the legal arrangements on a very complex theme in the forest sector: the use of a species threatened with extinction, araucaria. After years of intense deforestation, linked to the country's economic growth, after 1960 decade, it was edited an array of regulations aimed to control the forest use through strict laws and expansion of the environmental bureaucracy. In 2014, MMA Decree 443, araucaria was included in the danger category, restricting any timber use, including the ones gathered under forest management. The justification for this inclusion comes from the population reduction, deforestation and logging. Regarding the justification of its inclusion, it is important to note the non-disclosure of official data, an obligation of the State, on the remaining area and number of individuals. Decree 443 collides with the Brazilian forest low removing rights, as forest management, not established by Law number 12.651 of 2012. It also defies the Complementary Law 140 which establishes reports and technical-scientific studies for framing the listed species. Nor does it comply with the steps required in article 5º MMA Decree 43, which precedes Decree 443. By analyzing the regulations regarding the araucaria and its commercial use: there is no law prohibiting the use, through management and planting; what exists are Decrees and resolutions. Whoever is in the messianic right to forbid the cutting of the species, subsidizes itself in Decrees and resolutions. Moreover, who believes they have the right to cut it, is not aware of the legislation.

A Floresta Ombrófila Mista (FOM) foi intensamente explorada no passado, em parte devido à forte extração de madeira e lenha da floresta. Atualmente, a legislação ambiental restringe, e em muitos casos impede, o corte de madeira da floresta, tornando-a um problema para os proprietários rurais, que acabam por optar pela extração ilegal. O objetivo do estudo foi identificar e quantificar as espécies florestais não madeireiras de um fragmento de FOM localizado em São João do Triunfo-PR. Foram inventariadas as espécies arbóreas e as espécies não arbóreas de hábito terrestre e epifítico. Para inventário das espécies arbóreas foram utilizadas 350 parcelas de 100 m² e das espécies não arbóreas foram utilizadas 128 parcelas de 4 m². Foi realizada a análise fitossociológica e uma revisão de literatura com o propósito de verificar os potenciais usos não madeireiros das espécies inventariadas. Os resultados apontaram a presença de 884 indivíduos arbóreos por ha, pertencentes a 71 espécies. Destas, 62% apresentaram possíveis usos não madeireiros. Quanto aos indivíduos não arbóreos, o inventário revelou 15.371 indivíduos.ha-1 com hábito terrestre e 4.063 epífitas por ha, pertencentes a 63 espécies, sendo que 44% podem fornecer produtos florestais não madeireiros (PFNM). Pode-se concluir que o fragmento estudado possui uma grande quantidade de espécies e estas podem fornecer múltiplos usos para os proprietários rurais. ; The Araucaria Forest was intensively exploited in the past, in the part for timber and firewood extraction from the forest. Currently environmental legislation restricts and in many cases prohibits the cutting of forest wood, making it often a problem for landowners who eventually chose illegal extraction. The study objective was to identify and quantify the non-wood forests species of a fragment of Araucaria Forest. The study was carried out in a fragment of Araucaria Forest in São João do Triunfo, Brazil, where the species with terrestrial and epiphytic habit were taken into account. The inventory of the tree species was conducted through the use of 350 plots of 100 m² and the inventory of other species was conducted through the use of 128 plots of 4 m². The phytosociological analysis was performed and a review of literature was performed with the purpose of verifying the potential uses of non-wood forests species surveyed. The results indicated the presence of 884 trees.ha-1, with the identification of 71 species. Of these, 61.97% had possible non-wood uses. As those not trees, the inventory showed 15,371 individuals.ha-1 with terrestrial habit and 4,063 epiphytes per ha, with the identification of 63 species, of which 44.44% can provide non-wood forests products. It can be concluded that the fragment studied had a large number of species and these can provide multiple uses for landowners, minimizing the illegal exploitation of wood, may be an economically viable alternative, environmentally correct, directing the property to the sustainable management.