Open AccessEcological-economic zoning as an instrument for the environmental management of hydrographic basins
Author(s) -
Elfany Reis do Nascimento Lopes,
José Carlos de Souza,
José Luiz Albuquerque Filho,
Roberto Wágner Lourenço
Publication year - 2021
Publication title -
revista brasileira de geografia física
Language(s) - English
Resource type - Journals
ISSN - 1984-2295
DOI - 10.26848/rbgf.v14.1.p106-125
Subject(s) - zoning , geography , hydrography , context (archaeology) , ecology , environmental protection , environmental resource management , water resource management , environmental science , cartography , archaeology , political science , law , biology
This study presents a proposal of ecological-economic zoning using the hydrographic basin of the Una River, Ibiúna, São Paulo, as a study area to subsidize the application of zoning as a management tool for water resources in the context of integrated environmental analysis. The zoning comprised four stages: delimitation of morphometric, physical, biotic, and socioeconomic parameters; definition of the environmental scenario; determination of management zones; and characterization of zones and definition of objectives, conflicts, permitted uses, potential, management actions, and legislation. The results indicate that the basin has 96 km2, with an irregular and elongated shape, an average altitude of 937 meters, a maximum elevation of 1,175 meters, and a strongly undulating relief. Temporary agriculture (36.33%), dense rain forest (37.05%), and oxisol or Argisols predominate in the area. The socioenvironmental characteristics indicate that the sanitation rate of households, residents, and environment were higher in the urban area. About 86% of the population living in the basin are literate, while the percentage of access to the water and sewage system in the rural area is precarious. The EEZ comprised eight management zones, the main ones being agricultural and conservation zones, considered satisfactory and efficient for environmental management and favoring coordination and replication in similar areas.