Múcio do Amaral Figueiredo

Pedological aspects as environmental quality indicators of a touristic trail in the Serra do Cipó National Park/MG

Soil provides important support for anthropogenic activities, and earthen trails, which have always been present in the natural landscape, are routes of access to various tourist attractions. In recent decades, trails have been widely used as a method of access and visitation to geotouristic attractions. Because trails are restricted routes, transit along these paths also transforms the route into a pathway for the spread of various negative environmental impacts, including compaction and soil erosion of the trailbed. Soil compaction is caused by changes in the soil structure that are partly induced by the use of agricultural or geotechnical machinery and traffic, and the damage is also manifested in a remarkable decrease in porosity, which has clear implications for the infiltration and percolation of water and air associated with the functional porosity of soil. Soil micromorphological characteristics contribute to the analysis of soil porous systems, and the macroporous characteristics visible at this scale include the size, shape and connectivity among voids, which can be studied using different methods of identification, measurement and interpretation. Such methods are applied to understand the pore genesis and, more importantly, the physical behavior of soil-water order management. This work presents the results of analyses of the macromorphological and micromorphological characteristics, porosity, texture and penetrometry resistance of soil profiles on the Farofa Waterfall trail in the Serra do Cipó National Park, and the aim is to provide recommendations for compaction studies along special trails. The results showed that most of the trailbed is more compressed than at the margins, which suggests the need for geoindicator studies of soil quality to monitor the visitation of the trail and improve the conservation of natural resources.

RESÍDUOS SÓLIDOS: ESTUDO SOBRE A ATUAL SITUAÇÃO NO MUNICIPIO DE SÃO JOÃO DEL-REI/MG

RESUMO: A questao ambiental atualmente e motivo de discussao, principalmente quando o objetivo e equilibrar o desenvolvimento economico e o meio ambiente. Destaca-se, nesse contexto, a producao e disposicao dos residuos solidos. Diante dessa perspectiva, o objetivo desse trabalho e realizar o levantamento das legislacoes vigentes referentes a residuos solidos, tendo como exemplo, o estudo de caso de sao Joao del-Rei, que possui problemas referentes esse tema. Para isso, foram realizadas entrevistas, consultas a orgaos publicos que forneceram informacoes que resultaram na geracao de tabelas e na confeccao de mapas. De acordos com os dados levantados observou-se a ausencia de uma estrutura organizacional administrativa e planejamento das gestoes anteriores. De acordo com a lei 12305/2010 a atual gestao tera que se adequar e fazer cumprir a legislacao vigente, sob pena de nao receber o Fundo de Participacao dos Municipios (FPM), sendo este a principal fonte de receita dos municipios de pequeno a medio porte. Palavra-Chave : Residuos Solidos. Sao Joao del-Rei. Saneamento.

Qualidade do solo como geoindicador para o manejo de uma trilha no Parque Nacional da Serra do Cipó, MG, Brasil

The trails in natural areas are recognized as a means of travel between the visitor and tourist attractions. Thus, in protected areas, while providing visitors direct contact with nature, visitation results in environmental changes such as, among others, soil compaction and erosion in the bed of the trails. The objective of this study was to characterize soil quality in Farofa Trail, located in the Serra do Cipo National Park, Minas Gerais state, Brazil. The trail, which connects the park headquarters to the natural attraction Farofa Waterfall, located in quartzitic rocky cliff of great scenic beauty, is the most visited and utilized to achieve that natural attraction, besides serving for the practice of hiking, biking, horseback riding and vehicles traffic allowed. This trail offers outstanding environmental impacts of erosion and soil compaction, the latter barely visible to lay observations. To characterize the impact, we performed a survey of soil profiles in the bed of the trail and its surroundings, as well as measures of penetration resistance (penetrometer), using a cone penetrometer with dynamometric ring and collecting soil samples of disturbed and undisturbed soil surface for soil studies. The results show that soils the bed of the trails are compressed relative to adjacent soil and that these need to be managed to promote the conservation of associated biogeodiversity, and its viability as a means of access to the Farofa Waterfall and quartzitic rocky cliff present there, the highlighting the importance of using pedological attributes for the management of trails, encouraging conservation through environmentally sustainable practices.

Singularidades geológicas e históricas como atrativo geoturístico da Gruta Casa da Pedra, município de São João Del-Rei, MG

The caves have always played in men a mixture of fascination and fear, because they are atypical formations in relation to other geological formations, which causes curiosity and wonder to be visited. Another factor that increases the interest in visiting the cave is the fact that these are usually surrounded by varied legends and stories. This study is an analysis regarding the geotouristic potential of a karst cavity located in the municipality of Sao Joao del-Rei, MG, where in addition to features fascinating and unique as to its geological context, the cave has a long history of visitations and facts important to the story regionally and nationally.