Daniele Guarienti Rorato

Silvicultural Potential of Handroanthus heptaphyllus Under Doses of Controlled Release Fertilizer and Container Volume, in Nursery and in the Field

The present study aimed to characterize the growth of Handroanthus heptaphyllus seedlings in a nursery, planted under different container volumes and doses of controlled release fertilizer (CRF), and to verify whether the responses obtained in the nursery are confirmed in the field. For the production of seedlings in the nursery, three volumes of container (180 and 280 cm3 polypropylene tubes and 500 cm3 polyethylene bags) and four CRF doses (0, 4, 8, and 12 g L-1 of substrate) were used. At 180 d after emergence, height (H), stem diameter (SD), H:SD ratio, shoot dry weight, root dry weight, total dry weight, Dickson Quality Index, leaf area, root length, and fluorescence of chlorophyll a were evaluated. The same treatments were evaluated again in the field 540 d after planting, and the survival, increase in H and SD, as well as shoot dry weight, leaf area, chlorophyll fluorescence, and chlorophyll index (a, b and total) were measured. In the nursery, seedlings of H. heptaphyllus responded positively to the volume of the container, as well as the base fertilization using CRF. However, when planted in the field, the plants that received the best nutritional conditions in the nursery showed good performance and was favored in the field. Thus, in the production of quality seedlings, the use of containers of the type polypropylene tubes with 180 cm3, and basic fertilization with 12 g L-1 of CRF conditions that enable growth of H. heptaphyllus in the field are recommended.

Seed Analysis and Seedling Production of Matayba elaeagnoides Radlk

The objective of this study was to evaluate the germination potential of Matayba elaeagnoides seeds, identifying the best substrate for laboratory analysis and to determine seedling emergence and growth under different shade levels in the nursery. Different substrates (paper roll, between and on blotting paper, and on sand or vermiculite) were evaluated in the germination test and different shade levels (0, 30, 50 and 75%) were tested in the nursery. No differences were found between the substrates for seed germination, however, the highest germination percentage was observed when using paper roll (70%). The 30, 50 and 75% shading intensities positively influenced Matayba elaegnoides seedling emergence, however, the best performance in nursery growth was observed under 75% shade presenting seedlings with better standard and quality.

FITOSSOCIOLOGIA E AUTOECOLOGIA SUBSIDIANDO A RESTAURAÇÃO DE MATA CILIAR, EM REGIÃO DE TRANSIÇÃO CAMPO-FLORESTA

The objective of this study was to identify potential areas for collecting seeds and to list promising native species for testing the recovery of riparian forests in the field-forest zone, Sao Francisco de Paula, RS. Four vegetation fragments (F1, F2, F4 and F5) were observed, which were performed at phytosociological and autoecological analysis of the studied species. The results proved that F1 and F2 showed seed collecting potential. In the restoration areas highlights Araucaria angustifolia , Sebastiania commersoniana, Eugenia uruguayensis, Myrciaria delicatula, Drimys brasiliensis, Blepharocalyx salicifolius, Ocotea pulchella, Cinnamomum amoenum, Styrax leprosus, Myrceugenia cucullata, Calyptranthes concinna, Myrcia palustris, Zanthoxylum rhoifolium, Roupala brasiliensis, Casearia decandra and Sebastiana brasiliensis as species with potential for restoration areas in the region with possibility of preserving the fragments where they occur.

Aspectos do perfil discente do Curso Técnico em Paisagismo da Universidade Federal de Santa Maria

The goal of this study was determinate same aspects of students profile of technical course in landscaping at Universidade Federal de Santa Maria, RS. To this end, it was applied a closed questionnaire for 16 and 24 students, respectively, from second and fourth semesters, of the course. It was verified that the age range is large, varying between 17 and 60 years old, with female predominance. About the schooling, majority of the students have only high school, with wish of continuous the studies and work in the landscaping area, possibly, by considering the course with great importance to their quality of life and society. The main motivation of the course is due a personal issues, and also, for the tradition and quality of the institution, reflecting the students satisfaction in relation to of technical course in landscaping. Key-words: professional education, vocational education, quality of live, socio-economic profile.

Ações práticas e de educação ambiental visando preservar nascentes, Dona Francisca, RS

O trabalho teve como objetivo apresentar as atividades desenvolvidas no Programa Protecao de Nascentes, realizado no municipio de Dona Francisca, RS. A falta de abastecimento de agua em grande parte das propriedades rurais e o descaso com as nascentes levaram o governo municipal juntamente com a EMATER/RS-ASCAR do municipio, a partir de 1990, a realizar atividades de limpeza visando proteger esses locais da entrada de sedimentos contaminantes ou acesso de animais. Adicionalmente, teve-se o cuidado tambem com o entorno das nascentes, deixando a area protegida com isolamento, uso de praticas como o terraceamento para desvio das aguas superficiais, plantio de arvores nativas no entorno quando necessario, entre outras recomendacoes. Das 12 nascentes analisadas, 50% foram consideradas preservadas e o restante foi considerado como necessitando intervencao. Alem disso, destaca-se a realizacao concomitante de atividades de educacao ambiental junto as familias e criancas dessas comunidades beneficiadas. A partir da realizacao conjunta dessas atividades foi possivel perceber uma mudanca comportamental nos individuos, na maneira de pensar e agir, refletindo em acoes mais conscientes e responsaveis para com o meio ambiente.

Resíduos eletroeletrônicos: ações do Batalhão Ambiental Mirim na sensibilização da comunidade de Faxinal do Soturno, RS

Esse trabalho teve como objetivo apresentar as atividades desenvolvidas pelo Batalhao Ambiental Mirim da Escola Estadual de Educacao Basica Dom Antonio Reis, Faxinal do Soturno, RS, como uma ferramenta pratica de educacao ambiental. A proposta de criacao desse Batalhao surgiu basicamente do interesse de alunos, os quais demonstraram preocupacao com o meio ambiente, em especial, com o descarte de residuos eletronicos. O grupo realiza atividades de coleta de residuos eletronicos na cidade, associado a praticas de conscientizacao durante a coleta, bem como participacao em feiras e eventos municipais. Esse Batalhao Ambiental Mirim e considerado um grupo de trabalho recente, com apenas dois anos de atuacao. Durante o ano de 2014, foram coletados tres toneladas de residuos eletronicos, as quais foram vendidas a uma empresa especializada. Comparativamente ao ano de 2013, uma tonelada a mais foi recolhida, devido, possivelmente, a divulgacao e reconhecimento do Batalhao e suas atividades na sensibilizacao da comunidade. Assim, visa-se aumentar o envolvimento dos alunos participantes do Batalhao para atuarem como multiplicadores de uma consciencia ambiental por meio, principalmente, do descarte adequado e consciente de residuos eletronicos, contribuindo com a reducao, mesmo que em escala local, dos impactos causados pelo crescente descarte desses residuos.

Aspectos eco-fisiológicos limitantes da regeneração natural

Natural regeneration comprises the initial stages of establishment and development, and is considered a slow and unpredictable process, due to the complex interaction between the successful establishment of seedlings and different environmental factors. Thus, the aim of this study was show a review addressing eco-physiological factors influencing the natural regeneration of forests as reserves of seed, production and seed dispersal, germination and dormancy, temperature, and water availability and light. Knowledge of the effect of these factors and their interactions with the community are essential to forest management, regarding its management and revegetation of disturbed areas. Thus, simulations of regeneration constitute naturally a very useful tool.

INFLUÊNCIA DOS FATORES AMBIENTAIS NO COMPONENTE ARBÓREO DE FRAGMENTOS FLORESTAIS EM SÃO FRANCISCO DE PAULA - RIO GRANDE DO SUL

O presente trabalho teve como objetivo geral caracterizar a influencia do solo e da topografia no componente arboreo de fragmentos, no entorno do Reservatorio Divisa, na regiao dos Campos de Cima da Serra, Sul do Brasil. O levantamento da vegetacao foi realizado em quatro fragmentos, sendo em cada parcela (10 x 20 m) efetuada a identificacao e medicao da circunferencia a altura do peito (CAP) dos individuos com CAP ≥ 30 cm. Os dados de vegetacao foram submetidos a analise de agrupamento. Adicionalmente, foram obtidas as variaveis ambientais, como declividade media das parcelas e amostras de solo, na camada de 0-20 cm de profundidade. A correlacao entre os dados ambientais e de vegetacao foi realizada por meio da Analise de Correspondencia Canonica. As caracteristicas fisicas do solo nao apresentaram influencia nos grupos formados e nas especies. Nos capoes, a constante presenca do gado influenciou negativamente a estrutura do sub-bosque, assim como as caracteristicas quimicas do solo. Aluminio e saturacao por aluminio apresentaram maior influencia nas especies predominantes da mata ciliar enquanto cobre e enxofre influenciaram as especies presentes nos capoes. Especies como Araucaria angustifolia, Eugenia uruguayensis, Blepharocalyx salicifolius, Calyptranthes concinna, Lithraea brasiliensis, Myrsine coriacea, Ocotea pulchella e Sebastiania commersoniana sao adaptadas a mata ciliar, podendo ser utilizadas na recuperacao e enriquecimento desses ambientes.

Environmental Education and awakening to citizenship

The work has as objective to encourage the participation of students in environmental education activities, arousing interest in native species and their use for restoration of riparian areas of streams and springs in the municipality of Sao Joao do Polesine, RS, Brazil. The research was conducted with students from the 4th and 5th year of Municipal Elementary School La Salle, meetings that covered topics such as the study of native trees, concepts of forest diversity , the environment and conservation areas being conducted, as well as planting native forest species, ecological trail , a walk on the banks of River Soturno, among other activities. there was a big behavioral change in relation to the preservation of the environment in the form of commitment to actions and preservationist attitudes and the desire to forward community concepts and knowledge acquired. Also noting students motivation while performing this job, evidenced by the interest and participation in activities and understanding of concepts worked. Thus, it is perceived that through environmental education can raise awareness about the need of preserving forest diversity through knowledge of native species forming forests existing in the locality, as well as its possible use in the recovery of riparian forests.