Macrophyte Occurrence in Response to Anthropogenic Pressure in Reservoir
Journal Title: Fronteiras: Journal of Social, Technological and Environmental Science - Year 2017, Vol 6, Issue 4
Abstract
The objective of this study was to evaluate the effect of anthropogenic land use on the community of aquatic plants in the vicinity of a consolidated artificial reservoir. Two landscape units (LU) were outlined adjacent to a more than 50-year-old artificial reservoir, of which one (LU1) had a low and the second (LU2) a high human impact. In total, we found 20 plant species. Only two species were common to UP1 and UP2. The species diversity in LU1 (n=18) was greater than in LU2 (n=4), and plant distribution more even. Phosphorus, potassium, organic matter, calcium, and magnesium contents were lower in LU2. It can be concluded that the embankment induced the occurrence of more macrophyte species and plants, due to the soil conservation in the reservoir surroundings. The low human impact in this area allowed a greater diversity of native macrophytes. The intensification of land use around the reservoir impoverishes the soil, preventing the development of a diversified community of macrophyte.
Authors and Affiliations
Carla Denise Tedesco| Doutorado em Agronomia pela Universidade de Passo Fundo, UPF, Brasil. Docente na Universidade de Passo Fundo, UPF, Brasil. tedesco@upf.br, Claudia Petry| Doutorado em Geografia pela Université Paris 1 Pantheon-Sorbonne, PARIS 1, França. Docente na Universidade de Passo Fundo, UPF, Brasil. petry@upf.br, Edson Campanhola Bortoluzzi | Doutorado em Science Du Sol Et Environnement pelo Institut National Agronomique Paris Grignon, INA P-G, França. Docente na Universidade de Passo Fundo, UPF, Brasil. edsonb@upf.br, Alfredo Castamann| Doutorado em Agronomia pela Universidade de Passo Fundo, UPF, Brasil. Docente na Universidade Federal da Fronteira Sul, UFFS, Brasil. alfredo.castamann@uffs.edu.br
Keywords
Related Articles
- EP ID EP15658
- DOI 10.21664/2238-8869.2017v6i4.p220-233
- Views 304
- Downloads 22
Mata Atlântica: Relatos de um bioma saudoso
Political Elites and the City: The urban network of Goiás in the areas of Portuguese America
In this article we propose to analyse the mechanisms used for the political elites of Vila Boa, which hadthe intent to expand their powers within the city. Considering this objective, the strategy of the municipal off...
Impacto da Lei de Proteção da Vegetação Nativa na Conservação de Recursos HÃdricos em um Assentamento Rural em Nova Venécia - EspÃrito Santo
A Lei de Proteção da Vegetação Nativa (LPVN) gerou intenso debate na sociedade brasileira. Dentre as principais mudanças, destacam-se a flexibilização das Ãreas de Preservação Permanente (APPs) e de Reserva L...
TECNOLOGIA, CULTURA E MEIO AMBIENTE: DETERMINANTES DAS PRÃTICAS DO ALEITAMENTO MATERNO NO BRASIL
A importância do aleitamento materno foi consagrada no século XX assim como sua total compatibilidade com a vida moderna das mulheres. Inúmeras são as evidências cientÃficas comprovando os benefÃcios do leite ma...
Experiences of Being a Mother: Meanings of Childbirth, Pain and Birth
The experiences of delivery and birth profoundly shape the lives of women, couple and family. The objective of this study is to understand the meanings attributed to childbirth, pain and birth, by Portuguese and immig...