Environmental fragility of Iguaçu river watershed, Paraná, Brazil

The aim of this study was to analyze the environmental fragility of Iguaçu River watershed, Paraná. Regarding fragility potential, most watersheds fell under the moderate fragility class (40.47 % of the total), followed by very low (18.83 %), low (16.20 %), high (13.27 %) and very high with only 8.6...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dalla Corte,Ana Paula, Klein Hentz,Ângela Maria, Doubrawa,Betina, Sanquetta,Carlos Roberto
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2015
Materias:	environmental planning land use vulnerability
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000200014
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-92002015000200014
record_format	dspace
spelling	oai:scielo:S0717-920020150002000142015-09-14Environmental fragility of Iguaçu river watershed, Paraná, BrazilDalla Corte,Ana PaulaKlein Hentz,Ângela MariaDoubrawa,BetinaSanquetta,Carlos Roberto environmental planning land use vulnerability The aim of this study was to analyze the environmental fragility of Iguaçu River watershed, Paraná. Regarding fragility potential, most watersheds fell under the moderate fragility class (40.47 % of the total), followed by very low (18.83 %), low (16.20 %), high (13.27 %) and very high with only 8.68 %. Concerning emerging fragility, most watersheds again lay within moderate fragility (41.55 %), though in this case low fragility was found in second place (with 40.73 %), followed by very low (7.67 %), high (6.50 %) and very high (0.99 %). Urban areas corresponded to 1.37 % and bodies of water to 1.18 % of the area. From a visual analysis, emerging fragility was observed to be high and very high, when present, followed by flooded areas; thus, demonstrating the importance of considering them in such studies, since they are environments with very unstable structural features including certain soil types, significant erosion from water, among others. The results of certain classes also appeared to depend on the weights given to factors considered as affecting the outcome. When the mean fragility methodology was used, the classes tended to follow a normal distribution, i.e. with a dominant moderate class. Therefore one can conclude that determining the importance of each factor is essential in evaluating environmental fragility, and therefore, weights should be carefully defined for each situation.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.36 n.2 20152015-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000200014en10.4067/S0717-92002015000200014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	environmental planning land use vulnerability
spellingShingle	environmental planning land use vulnerability Dalla Corte,Ana Paula Klein Hentz,Ângela Maria Doubrawa,Betina Sanquetta,Carlos Roberto Environmental fragility of Iguaçu river watershed, Paraná, Brazil
description	The aim of this study was to analyze the environmental fragility of Iguaçu River watershed, Paraná. Regarding fragility potential, most watersheds fell under the moderate fragility class (40.47 % of the total), followed by very low (18.83 %), low (16.20 %), high (13.27 %) and very high with only 8.68 %. Concerning emerging fragility, most watersheds again lay within moderate fragility (41.55 %), though in this case low fragility was found in second place (with 40.73 %), followed by very low (7.67 %), high (6.50 %) and very high (0.99 %). Urban areas corresponded to 1.37 % and bodies of water to 1.18 % of the area. From a visual analysis, emerging fragility was observed to be high and very high, when present, followed by flooded areas; thus, demonstrating the importance of considering them in such studies, since they are environments with very unstable structural features including certain soil types, significant erosion from water, among others. The results of certain classes also appeared to depend on the weights given to factors considered as affecting the outcome. When the mean fragility methodology was used, the classes tended to follow a normal distribution, i.e. with a dominant moderate class. Therefore one can conclude that determining the importance of each factor is essential in evaluating environmental fragility, and therefore, weights should be carefully defined for each situation.
author	Dalla Corte,Ana Paula Klein Hentz,Ângela Maria Doubrawa,Betina Sanquetta,Carlos Roberto
author_facet	Dalla Corte,Ana Paula Klein Hentz,Ângela Maria Doubrawa,Betina Sanquetta,Carlos Roberto
author_sort	Dalla Corte,Ana Paula
title	Environmental fragility of Iguaçu river watershed, Paraná, Brazil
title_short	Environmental fragility of Iguaçu river watershed, Paraná, Brazil
title_full	Environmental fragility of Iguaçu river watershed, Paraná, Brazil
title_fullStr	Environmental fragility of Iguaçu river watershed, Paraná, Brazil
title_full_unstemmed	Environmental fragility of Iguaçu river watershed, Paraná, Brazil
title_sort	environmental fragility of iguaçu river watershed, paraná, brazil
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000200014
work_keys_str_mv	AT dallacorteanapaula environmentalfragilityofiguacuriverwatershedparanabrazil AT kleinhentzangelamaria environmentalfragilityofiguacuriverwatershedparanabrazil AT doubrawabetina environmentalfragilityofiguacuriverwatershedparanabrazil AT sanquettacarlosroberto environmentalfragilityofiguacuriverwatershedparanabrazil
_version_	1718444210745507840

Environmental fragility of Iguaçu river watershed, Paraná, Brazil

Ejemplares similares