REGULATION ECOSYSTEM SERVICES IN A WATERSHED IN THE SEMI-ARID OF BRAZIL

Authors

DOI:

https://doi.org/10.4215/rm2022.e21028

Keywords:

Serviços Ecossistêmicos

Abstract

Human pressures on ecosystems from the use and suppression of vegetation cover cause negative actions on biodiversity, impacting nature and the ecosystem services provided by the same. The focus of this research is to evaluate the ability to provide Ecosystem Services in the Seridó River Basin (RN / PB). Modeling techniques were applied from USLE, in addition to vegetation and organic carbon indices. The results showed that the highest values ​​of NDVI are in areas of higher elevation and slope, and the lowest values ​​found in flat areas. Six classes of land use were identified, namely: Water bodies, urban area, Pasture and exposed rock, Caatinga Subarbustiva, Subarbórea and Arbórea. As a result, the areas of greatest relevance for providing Organic Carbon stock services are in the highest areas, with the areas with the greatest erosion control located in escarpment areas. 

 

Key words: Ecosystem Services; Modeling; Caatinga; Semiarid; Hydrographic basin.



Author Biographies

  • Paulo Jerônimo Lucena de Oliveira, State University of Ceará, Fortaleza (CE), Brasil

    He is currently a PhD student in Geography at the Graduate Program in Geography at the State University of Ceará - UECE. It is linked to the Geoprocessing and Applied Studies Laboratory (LABGEO / UECE). Degree in Geography from the Federal University of Rio Grande do Norte - UFRN. He develops studies in the field of phytoecology of tropical ecosystems in conservation units in the Brazilian semiarid region, with an approach from landscape ecology, landscape metrics and landscape analysis in GIS.

  • Jânio Fernandes Guedes, Federal University of Rio Grande do Norte, Seridó (RN), Brazil

    Collaborating Professor at the Higher Education Center of Seridó CERES/Campus de Caicó - UFRN. PhD student in Geography at the Federal University of Ceará - UFC. Member of the Semiarid Ecology Laboratory - LABESA as well as the Research Group on Geoecology and Tropical Biogeography - TRÓPIKOS., where he develops research in the areas of Geoecology and Biogeography, with published works on the following topics: Remote Sensing and Geoprocessing applied to analysis and modeling of environmental systems, environmental monitoring, Caatinga phytogeography.

  • Diógenes Felix da Silva Costa, Federal University of Rio Grande do Norte, Seridó (RN), Brazil

    Doctor in Ecology, he was born in Jardim do Seridó-RN. He works as Adjunct Professor IV of the Department of Geography at the Higher Education Center of Seridó / UFRN, teaching the disciplines of Ecology, Biogeography, Natural Resources and Environmental Planning in undergraduate courses in Geography. He runs the Lab. & Research Group on Biogeography of Tropical Ecosystems (TRÓPIKOS), developing research in the areas of characterization of coastal ecosystems, classification and mapping of ecosystem services, biogeography of wetlands, phytogeography of tropical ecosystems, environmental monitoring and teaching of physical geography/biogeography. He also works as a professor in the Graduate Programs in Geography and in Development and Environment. Abroad, he is a research fellow at the Center for Environmental and Marine Studies-CESAM / University of Aveiro, Portugal and a member of the International Society for Salt Lake Research, where he served on the Board of Directors in the 2012-2014 term. In 2010, he participated in the scientific visit to the University of Sfax / Tunisia and the Aquaculture Institute of Torre de La Sal? IATS/Spain. Between 2010 and 2011, he participated as a researcher at the Interdisciplinary Center of Marine and Environmental Research-CIIMAR / University of Porto, Portugal. In Brazil, he is a founding member of the Brazilian Association of Biogeography (ABBIOGEO), where he acts as 1st Secretary in the 2018-2022 term, as well as 2nd Treasurer of the Brazilian Association of Physical Geography (ABGeoFísica). He coordinated the project "Geoenvironmental characterization and ecosystem services provided by saline and hypersaline wetlands of the semi-arid coast of Brazil (RN / CE)" (Edital Universal-MCTI / CNPQ / Universal Proc.447227 / 2014-9). Between 2018 and 2019, he was a Junior Postdoctoral Fellow/CNPq in the Graduate Program in Geography at UFPB, coordinating the project "Assessment and mapping of ecosystem services between Conservation Units of sustainable use and full protection in Seridó (RN) "

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Published

2023-02-15

Issue

Vol. 21 (2022)

Section

Artigos

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