O Ambiente Geográfico e os Geoindicadores (Geographic Environment and Geoindicators)
DOI:
https://doi.org/10.26848/rbgf.v4i2.232698Keywords:
Geoindicadores, ambiente geográfico, geomorfologia ambiental.Abstract
Este trabalho tem como objetivo a divulgação sistemática da metodologia dos geoindicadores ambientaisresgatando seu conceito e a revisão de pesquisas desenvolvidas no cenário internacional e nacional. Em questões multidisciplinares como a gestão ambiental, os geoindicadores se apresentam bastante uteis, permitindo o resumo de uma série de informações relacionadas a um aspecto, auxiliando na tomada de decisão, no diagnóstico e no prognóstico ambiental. Os geoindicadores podem ser entendidos como medidas de magnitudes, frequências, taxas e tendências de processos ou fenômenos geológicos, que ocorrem em períodos de cem anos ou menos, ou próximo à superfície terrestre e podem apresentar variações significativas para avaliação e compreensão das mudanças ambientais rápidas. As mudanças ambientais rápidas, de menor amplitude e efeitos espaciais mais restritos, são por vezes difíceis de perceber e pesquisar devido à impossibilidade de perceber e estabelecer distinções entre as mudanças naturais em escala decenal ou secular, e os efeitos derivados da interferência humana na paisagem (Coltrinari, 2001). Compreende-se, desta forma, que os geoindicadores podem ser aplicados a qualquer ambiente, desde que se tenha um conhecimento prévio dos problemas que ocorrem, para que depois sejam escolhidas as técnicas mais precisas para a avaliação do ambiente a serempesquisadas.
Palavras-chave: Geoindicadores, mudanças ambientais, geomorfologia ambiental.
Geographic Environment and Geoindicators
ABSTRACT
This work aims at the systematic dissemination of the methodology of environmental geoindicators rescuing his concept and a review of research at national and international scene. Multidisciplinary issues in environmental management, the present geoindicators quite useful, allowing a series of summary information related to one aspect, assisting in decision making, diagnosis and prognosis environment. The geoindicators can be understood as measures of magnitudes, frequencies, rates and trends of processes or geological phenomena that occur in periods of one hundred years or less, or near the surface and can vary significantly for the evaluation and understanding of rapid environmental changes. The rapid environmental changes, of lesser magnitude and more restricted spatial effects are sometimes difficult to understand and research due to the inability to perceive and distinguish between natural changes in decadal scale or secular, and the effects derived from human interference in the landscape (Coltrinari, 2001). It is understood that the form geoindicators can be applied to any environment, provided they have prior knowledge of the problems that occur, to be chosen after the most precise techniques for evaluating the environment to be searched.
Keywords: geoindicators, environment change, environmental geomorphology.
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Copyright (c) 2011 Pedro França Junior, Maria Estela Casale Dalla Villa
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