Avaliação dos serviços ecossistêmicos prestados pelas áreas úmidas costeiras da zona estuarina no rio Piranhas-Açu (RN/NE - Brasil)
The essays related to ecosystem services are highlighted in the academic field due to their extreme relevance. Geography analyzes the existing relationships between men and ecosystems in the dynamics of the services provision in favor of human well-being, evaluating their distribution and/or spat...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/30260 |
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| Resumo: | The essays related to ecosystem services are highlighted in the academic field due to
their extreme relevance. Geography analyzes the existing relationships between men
and ecosystems in the dynamics of the services provision in favor of human well-being,
evaluating their distribution and/or spatialization. Within this perspective, this
dissertation has coastal wetlands as an object of study, starting from the general
objective of evaluating the dynamics of the ecosystem services provision by coastal
wetlands in the estuary of the Piranhas-Açu river (RN), in the state of Rio Grande do
Norte. For multitemporal analysis of coastal wetlands, satellite images were used:
CBERS4 (2019); CBERS2b (2009); IKONOS and LANDSAT 5 (2000) and aerial
photographs (1968), the identification took place from the object's oriented
classification; followed by the classification of these wetlands using the methodology
proposed by Junk et al. (2015) and Soares et al. (2015). Regarding the classification of
the identified ecosystem services, the CICES (Commom International Classification of
Ecosystem Services) was used, classifying the services in provision and
maintenance/regulation. As a result, six coastal ecosystems inserted in the hypersaline
plain (estuary, coastal lagoons, mangrove, apicum, solar salt pans and shrimp farming)
were identified, based on the multitemporal analysis of coastal wetlands, which
demonstrates how the configuration of the study area developed over the years and what
ecosystem services were provided by this environment on a landscape scale, evaluating
the interference with human actions. That said, it can be said that the multitemporal
analysis performed in the study area was one of the important points worked on in this
research. It was obtained that during the year of 1968 the natural humid areas were
predominant in the study area and it was from the decade of 1970 that the advances of
the salt pole and of the shrimp farming began, having thus in the year 2000 a change in
the scenario, where the solar salt pans were already responsible for configuring a large
part of the hypersaline plain, and from that year on, artificial ecosystems became more
prevalent in the estuarine zone. From the analysis of ecosystem services, it can be seen
from the general overview that the coastal wetlands that provide the most ecosystem
services are the mangrove (natural ecosystem) and solar salt pans (artificial ecosystem).
Therefore, in this dissertation, the importance of coastal wetlands in the ecological scope
was performed, understanding from the landscape and the relationship of man with
habitats in the provision of ecosystem services. |
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