The IAD-SES-ILT model in assessing the governance of a river basin

This paper presents the IAD-SES-ILT heuristic model built from the combination of the Institutional Analyzes Development (IAD) framework of Elinor Ostrom and the Institutional Legal Theory (ILT). Using the grammatical syntax for the examination of institutional statements, proposed by Crawford and Ostrom, the structure of the Action Situation levels (Constitutional, Collective and Operational Choice) that make up the governance of the Hydrographic Basin of the Metropolitan Region of Fortaleza was analyzed . It was possible to show that the legal view introduced to the IAD-SES by ILT added new values to the institutional approach, allowing an assessment of governance regarding the respect for the principles indicated by the OECD as necessary for good governance of water resources.

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An environmental analysis of the acaraú river basin, Brazilian northeastern region

International Journal of Hydrology ◽

10.15406/ijh.2020.04.00235 ◽

2020 ◽

Vol 4 (3) ◽

pp. 117-123

Author(s):

Vanda Claudino-Sales

Keyword(s):

Sustainable Development ◽

Water Resources ◽

River Basin ◽

Environmental Degradation ◽

Environmental Analysis ◽

Arid Region ◽

Hydrographic Basin ◽

Semi Arid Region ◽

Regional Authorities ◽

Semi Arid

The rivers and their watersheds are fundamental elements of socioeconomic activities. In this article, we analyze the hydrographic basin of the Acaraú River, situated in the northeast of Brazil, from its geoenvironmental aspects, based on the perspective of the geosystem. In this perspective, a geoenvironmental picture of the hydrographic basin in question is presented, as well as the environmental problems that characterize it, postulating the need to carry out this type of survey to define the basin as a fundamental planning unit. The Acaraú River basin has particular characteristics, since it is located in a poor and extremely populous semi-arid region, which results in socio-environmental stress, whose main consequence is the environmental degradation of the fluvial course. The regional authorities need to be aware of the geoenvironmental elements raised in order to reverse this framework of socio-environmental degradation of water resources and to allow territorial growth based on sustainable development.

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APLICAÇÃO DE ÍNDICES DE PAISAGEM ÀS FLORESTAS CILIARES NA BACIA DO ALTO CAPIVARI REGIÃO CÁRSTICA CURITIBANA

FLORESTA ◽

10.5380/rf.v34i1.2370 ◽

2004 ◽

Vol 34 (1) ◽

Author(s):

Elenice Fritzsons ◽

Luiz E Mantovani ◽

Nivaldo E Rizzi

Keyword(s):

River Basin ◽

Riparian Forest ◽

Average Length ◽

Riparian Forests ◽

Metropolitan Region ◽

Forest Fragments ◽

Hydrographic Basin ◽

Data Support ◽

The Mean ◽

The Ideal

As florestas ciliares são formações vegetais essenciais para a proteção dos rios, lagos e nascentes. Neste trabalho, desenvolvido na bacia hidrográfica do Alto Capivari, na Região Metropolitana de Curitiba, Pr, foram elaborados e aplicados dois índices de paisagem: densidade de floresta ciliar e de comprimento médio dos fragmentos florestais ciliares, aplicados para os anos de 1980 e 1996. A densidade média de floresta ciliar para a bacia do Alto Capivari foi de 0,29, quando o ideal seria de 1. Entretanto, de 1980 para 1996 houve um acréscimo na densidade média das florestas ciliares, em torno de 10% e no comprimento médio de fragmentos florestais ciliares em 30%. Esses dados confirmam as observações sobre a expansão das florestas ciliares para a região metropolitana. RIPARIAN FOREST LANDSCAPES INDICES FOR ALTO CAPIVARI RIVER BASIN ON SUBTROPICAL CARSTIC REGION FROM PARANA, BRAZIL Abstract Forests are essential for the protection of streams, lakes and springs. We elaborated and applied two landscapes indices, the density of riparian forest, and the average length of riparian forest fragments, to the hydrographic basin of Alto Capivari River, in the metropolitan region of Curitiba, Brazil, for 1980 and 1996. The mean density of riparian forest was of 0,29, while the ideal value would be 1. However, from 1980 to 1996, the mean density of the riparian forests increased around 10% and the average length of riparian forest fragments increased 30%. These data support the observation that riparian forests can be expanding in Curitiba metropolitan region.

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Permanent preservation, coverage area and use of the land in the hydrographic basin of the Almas River, microregion de Ceres, Goiás, Brazil

Sustentabilidade em Debate ◽

10.18472/sustdeb.v10n3.2019.24751 ◽

2019 ◽

Vol 10 (3) ◽

pp. 147-178

Author(s):

Maria Gonçalves da Silva Barbalho ◽

José Luiz de Andrade Franco ◽

Antonio Cezar Leal ◽

Josana de Castro Peixoto

Keyword(s):

Land Use ◽

Water Resources ◽

Land Cover ◽

River Basin ◽

Sugar Cane ◽

Coverage Area ◽

Hydrographic Basin ◽

Original Vegetation

The aim of this study was to map the Permanent Preservation Areas (PPAs), as well as land cover and land use in the Almas River basin in Goiás, Brazil, based on geoprocessing. The results showed the remnants of the original vegetation are limited to fragments and occupy 32.52% of the area. Grassland is the dominant use, which is distributed throughout the area. Sugar cane and grains secondarily occupy other areas of the river basin. The mapped permanent preservation areas occupy an area of 1,182.22 km2, representing only 11.53% of the basins total area. The PPAs located on slopes with a 45º had a smaller area mapped and they were less affected by the use, whereas those of PPAs located in the springs and watercourses with larger area. Land use, disregarding APP areas, can endanger vital areas that, if degraded, represent damage to water resources.

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