Federal Conservation Units of Brazil's Coastal-Marine System
The limits of the six biomes of the Brazilian territory (i.g. Amazon, Atlantic Forest, Cerrado, Caatinga, Pampa and Pantanal) were recently revised (IBGE, 2019), and a new territorial section of the ocean-continent interface, called the Marine Coastal System (CMS) was presented. However, despite being a central theme for conservation planning, the spatial relationship between the federal conservation units of Brazil (FCU) and the CMS remained without a conclusive answer. In this paper - Protected areas of Brazil's Coastal-Marine System: Spatial modelling and conservation planning on biomes – ocean interface (Journal of Aquaculture & Marine Biology) - we investigate the complex biome-ocean interface by developing spatial modelling encompassed a broad biogeographic context. The primary work objective is to determine the spatial relationship between the CMS and the FCU, through the application of a set of topological and algebraic rules to then map the spatial distribution of the FCU in the 5 biomes and in the 4 geographical regions overlapping the CMS. The study area encompassed all the latitudinal and longitudinal variation of the CMS and related its geological, geomorphological and vegetation types with these descriptors that make up each FCU. The current dataset is presented in shapefile format with metadata description.
Steps to reproduce
1. The relational database, containing the limits of the FCU and associated geostatistical data, was acquired in shapefile format (.shp) and is available in https://www.gov.br/icmbio/pt-br/servicos/geoprocessamento/mapa-tematico-e-dados-geoestatisticos-das-unidades-de-conservacao-federais (accessed on 02/05/2021). The limits of the CMS were obtained in the BDiAWeb database (https://bdiaweb.ibge.gov.br/#/home), adding the IBGE WMS Server directly in the ArcCatalogTM software; 2. In the GIS environment, 4 topological rules were applied to extract subsets of spatial objects (i.g. FCU) from the spatial relationship between the base and target layers (Fig. 1), according to topological structure models indicated in the ESRI/ARCGIS Guide (2021). The definition of each topological rule and its graphic examples, in addition to the respective mathematical representations of matrix calculus, which were used in the present study, are indicated in the diagrams in Figure 2 (see article). 3. The feature of points corresponds to the centroids calculated for the geometry of each of the 334 FCU, contextualized in the biomes and geographical regions (Fig. 3). The objective was to identify the geographic center of the conservation unit area and use it as a spatial reference in the geometric model. 4. Spatial modelling