ENVIRONMENTAL INDICATORS IN FOREST FRAGMENTS FROM URBAN WATERSHEDS

Accelerated urbanization in Brazil promoted the rapid growth of cities and, in most cases, was not based on adequate land use planning. The result was the intense fragmentation of the landscape, causing the destruction and fragmentation of forest habitats, which were restricted to small and isolated...

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Bibliographic Details
Published in:WIT Transactions on Ecology and the Environment 2018-01, Vol.215, p.121
Main Authors: LONGO, REGINA MÁRICIA, ALESSANDRA LEITE DA SILVA, SUELI DO CARMO BETTINE, DEMAMBORO, ANTONIO CARLOS, BRESSANE, ADRIANO, FELIPE HASHIMOTO FENGLER, RIBEIRO, ADMILSON ÍRIO
Format: Article
Language:English
Subjects:
Basins
Edge effect
Elongation
Environmental degradation
Environmental indicators
Environmental management
Environmental quality
Environmental restoration
Forest management
Forest watersheds
Forests
Fragmentation
Fragments
Land use
Land use management
Land use planning
Landscape
Project management
Restoration
Urban watersheds
Urbanization
Vegetation
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Summary:Accelerated urbanization in Brazil promoted the rapid growth of cities and, in most cases, was not based on adequate land use planning. The result was the intense fragmentation of the landscape, causing the destruction and fragmentation of forest habitats, which were restricted to small and isolated remnants. In this sense, the present study promoted an analysis of the environmental quality of vegetation fragments in the sub-basins of Ribeirão Anhumas, Campinas, São Paulo, Brazil by calculating and interpreting the circularity index (CI), in order to define the format of the fragments, connectivity/isolation and the use and occupation of the environment as well as area and location, in order to promote the diagnosis and identification of priority areas for the implementation of restoration and environmental management actions. It was identified, therefore, that the remaining vegetation of the upper, middle and lower sub-basins is divided between small and medium unconnected fragments of which 56.2% and 24.2% presented an elongated and moderately elongated shape, respectively, and, therefore, high susceptibility to external interference and edge effects. On the other hand, high urbanization evidenced mainly in the high-level limits forest management projects, since the fragments are surrounded by built areas.
ISSN:1746-448X
1743-3541
DOI:10.2495/EID180111