Similaridade da Qualidade das Águas Superficiais da Bacia do Rio Negro, MS
DOI:
https://doi.org/10.5902/2179460X12571Keywords:
Análise de agrupamento. Fontes de poluição. Sazonalidade climática.Abstract
Para investigar a similaridade em escala espacial e temporal da qualidade das águas da micro-bacia do pantanal do rio Negro empregou-se a análise de agrupamento e análise fatorial. As amostras simples de água foram coletadas em seis pontos (georreferenciados) nos anos de 2008 a 2012. Foram avaliados os seguintes parâmetros: oxigênio dissolvido (OD), potencial hidrogeniônico (pH), condutividade elétrica (CE), sólidos dissolvidos totais (SDT), sólidos sedimentáveis (SSd), turbidez (Tz), temperatura da água e do ar (T), metais. A redução dos dados pela análise por componentes principais resultou em três componentes, com valores próprios, os quais explicam até 89,9% da variância total, sendo a primeira componente com 31,2%, a segunda componente com 30,3 %, a terceira componente com 28,4. A variabilidade e das componentes pode ser usada para indicar o processo hidrodinâmico que controla a qualidade das águas, sem perda de características significativas. A análise de agrupamento hierárquico formou quatro grupos distintos, sendo determinantes os tipos e concentrações dos sais analisados. A qualidade de água da microbacia é influenciada, principalmente, por dois fatores: fontes pontuais de poluentes e a sazonalidade climática.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
To access the DECLARATION AND TRANSFER OF COPYRIGHT AUTHOR’S DECLARATION AND COPYRIGHT LICENSE click here.
Ethical Guidelines for Journal Publication
The Ciência e Natura journal is committed to ensuring ethics in publication and quality of articles.
Conformance to standards of ethical behavior is therefore expected of all parties involved: Authors, Editors, Reviewers, and the Publisher.
In particular,
Authors: Authors should present an objective discussion of the significance of research work as well as sufficient detail and references to permit others to replicate the experiments. Fraudulent or knowingly inaccurate statements constitute unethical behavior and are unacceptable. Review Articles should also be objective, comprehensive, and accurate accounts of the state of the art. The Authors should ensure that their work is entirely original works, and if the work and/or words of others have been used, this has been appropriately acknowledged. Plagiarism in all its forms constitutes unethical publishing behavior and is unacceptable. Submitting the same manuscript to more than one journal concurrently constitutes unethical publishing behavior and is unacceptable. Authors should not submit articles describing essentially the same research to more than one journal. The corresponding Author should ensure that there is a full consensus of all Co-authors in approving the final version of the paper and its submission for publication.
Editors: Editors should evaluate manuscripts exclusively on the basis of their academic merit. An Editor must not use unpublished information in the editor's own research without the express written consent of the Author. Editors should take reasonable responsive measures when ethical complaints have been presented concerning a submitted manuscript or published paper.
Reviewers: Any manuscripts received for review must be treated as confidential documents. Privileged information or ideas obtained through peer review must be kept confidential and not used for personal advantage. Reviewers should be conducted objectively, and observations should be formulated clearly with supporting arguments, so that Authors can use them for improving the paper. Any selected Reviewer who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should notify the Editor and excuse himself from the review process. Reviewers should not consider manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies, or institutions connected to the papers.
