Fig 1.
Map representing the Iron Quadrangle’s selected sub-watersheds, the digital elevation model with its altitude range and the main ridges. The inset illustrates the location of the study area within Brazil and Minas Gerais state.
Table 1.
Area of the each land use and land cover (LULC) classes within Iron Quadrangle, Minas Gerais, Brazil.
Fig 2.
Ecosystem services resultant maps.
Iron Quadrangle’s output maps and their quantitative variation for each one of the models: habitat quality at the top, carbon stock (tons of carbon/ha) in the center and sediment retention (tons/ha/year) below. The three insets show the same zoomed area for its respective model.
Fig 3.
Sensitivity analyses of the parameters used in three models, measuring their influences on output ecosystem services maps.
(A) Standardized regression coefficient (SRC) for the habitat quality model, where ACCESS is the accessibility parameter of anthropogenic land use land cover class impacts in conservation units, and the others are impacts caused by eucalyptus plantations (EUC), pasture (PAS), mining areas (MIN), urban areas (URB), the roads network (ROAD), and agriculture fields (AGR). (B) The SRC values for the carbon stock model, where DOC is the dead organic carbon, SOC is the soil organic carbon and BGB e AGB correspond to the carbon stock in below- and aboveground biomass. (C) The SRC values for the sediment retention model, where FILT is the sediment filtration parameter and R, K, C, P and LS are the USLE factors.
Fig 4.
Sum of the total area that overlapped when the services are bundled together in each one of the minimum percentiles.
C is the carbon stock service, S the sediment retention and H the habitat quality.
Table 2.
Correlation Coefficients for each pair of models.
Fig 5.
Gradient of priority areas and the conservation units present in the study region.
Pixels nearer the red color have a high aggregation index, and the ones near the blue color have a low value for the same index.