Banca de DEFESA: ROSY VALERIA DA ROCHA LOPES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ROSY VALERIA DA ROCHA LOPES
DATE: 21/02/2022
TIME: 09:00
LOCAL: meet.google.com/nzx-sgtz-vsq
TITLE:

Are protected areas effective for ecosystem servies conservation in mangroves? A caste study with the carbon stocks of the brazilian coast

KEY WORDS:

Keywords: ecosystem services; carbono storage, mangroves, protected areas.

PAGES: 59
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia Aplicada
SUMMARY:

Ecosystem services are advantages provided by ecosystem processes that
directly benefits the human species. Important ecosystem services as regulation
services, are generated by natural ecosystem functioning and are tightly linked
to the climatic change mitigation, especially in relation to ecosystems Carbon
storage ability. Mangrove forests are distinguished ecosystems that plays na
important role on Carbon storage and are also recognized for their
socioeconomical and ecological importance. The degradation of mangrove
forests decreases the carbon capture possibilities, leading to higher CO 2
emissions, worsening the disbalance between Carbon absorption and emission,
contributing to climate change. In this sense, the settlement of protected areas
(PAs) arises as one of the strategies that can be used to reduce these impacts
and to promote the conservation of threatened areas, as the mangrove forests.
Remote sensing techniques are useful tools for a better management and
comprehension of the mangrove ecosystem, allowing the decision making in
coastal. Therefore, the aim of this work is to analyze the effectiveness of PAs
presence for the maintenance of carbon stocks in Brazilian mangroves. We
evaluated the mangrove areas along the entire Brazilian coast and classified
them according to its insertion in PAs. Based on the Google Earth Engine
platform, we used photointerpretation techniques on satellite images to apply
vegetation indexes, what allowed us to verify carbon dynamics in these areas.
According to our results, the mean of the indexes that reflect the carbon stocks
is higher in mangroves located within protected areas, highlighting the
importance of these areas in carbon storage service conservation in the
mangroves. When analyzing distinct PA types, we found that Private natural
heritage reserves, inserted in the group of sustainable use PAs by Brazilian
laws, stood out, showing the higher levels of carbon storage. Environmental
protection areas and extractive reserves showed the lower levels of mangrove
carbon assimilation, what is concerning since They are the main type of PA
proposed for mangrove conservation. In this sense, our research points out the
need for creation and/or expansion of different categories of protected areas
that englobes mangrove forests as a method to reinforce mangrove protection.
The inclusion of new areas would increase the mangrove carbon assimilation
abilities. We also manifest the importance of the public power on ensuring the
effectiveness of these areas management and legal protection.

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