Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin

The effects of riparian restoration and soil and water conservation practices on catchment hydrology are still unclear. Here, we assess whether a positive change in soil and water conservation practices and riparian reforestation will affect the water availability and boost resilience in a Brazilian...

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Main Authors: Paula Prado Siqueira, Paulo Tarso S. Oliveira, Danielle Bressiani, Antonio A. Meira Neto, Dulce B.B. Rodrigues
Format: Article
Language:English
Published: Elsevier 2021-10-01
Series:Journal of Hydrology: Regional Studies
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214581821001609
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author Paula Prado Siqueira
Paulo Tarso S. Oliveira
Danielle Bressiani
Antonio A. Meira Neto
Dulce B.B. Rodrigues
author_facet Paula Prado Siqueira
Paulo Tarso S. Oliveira
Danielle Bressiani
Antonio A. Meira Neto
Dulce B.B. Rodrigues
author_sort Paula Prado Siqueira
collection DOAJ
description The effects of riparian restoration and soil and water conservation practices on catchment hydrology are still unclear. Here, we assess whether a positive change in soil and water conservation practices and riparian reforestation will affect the water availability and boost resilience in a Brazilian Cerrado basin under climate change scenarios. This study was developed in the Três Marias basin (50.600 km²) located in southeastern Brazil. First, we calibrated (1992–2005) and evaluated (2006–2012) the Soil and Water Assessment Tool (SWAT) model. Then, we created a land cover and land use change (LCLUC) scenario that considers improving soil and water conservation practices and the reforestation of riparian zones, following the recommendations of the Brazilian Payment for Ecosystem Services (PES). We also used the trend SSP2-4.5 and the fossil-based economy SSP5-8.5 (Shared Socioeconomic Pathways) climate scenarios data from the Coupled Model Intercomparison Project Phase 6 (CMIP6) project for the period of 2015–2100. Along with a decrease of 5 %–15 % in precipitation in the projected period, an increase of 7 %–15 % in forest areas due to the LCLUC scenarios generated an increase in evapotranspiration values up to 38 %, resulting in a decrease of surface runoff and baseflow. Riparian reforestation and soil and water conservation practices did not necessarily enhance water availability on the simulations performed, as expected by many PES.
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spelling doaj.art-558b566d69cd45648fb48017ea6ce5b02022-12-21T22:30:43ZengElsevierJournal of Hydrology: Regional Studies2214-58182021-10-0137100931Effects of climate and land cover changes on water availability in a Brazilian Cerrado basinPaula Prado Siqueira0Paulo Tarso S. Oliveira1Danielle Bressiani2Antonio A. Meira Neto3Dulce B.B. Rodrigues4Federal University of Mato Grosso do Sul, CxP. 549, Campo Grande, MS, 79070-900, BrazilFederal University of Mato Grosso do Sul, CxP. 549, Campo Grande, MS, 79070-900, Brazil; Corresponding author.Federal University of Pelotas, Pelotas, RS, 96010-610, BrazilDepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, 85719, USAFederal University of Mato Grosso do Sul, CxP. 549, Campo Grande, MS, 79070-900, BrazilThe effects of riparian restoration and soil and water conservation practices on catchment hydrology are still unclear. Here, we assess whether a positive change in soil and water conservation practices and riparian reforestation will affect the water availability and boost resilience in a Brazilian Cerrado basin under climate change scenarios. This study was developed in the Três Marias basin (50.600 km²) located in southeastern Brazil. First, we calibrated (1992–2005) and evaluated (2006–2012) the Soil and Water Assessment Tool (SWAT) model. Then, we created a land cover and land use change (LCLUC) scenario that considers improving soil and water conservation practices and the reforestation of riparian zones, following the recommendations of the Brazilian Payment for Ecosystem Services (PES). We also used the trend SSP2-4.5 and the fossil-based economy SSP5-8.5 (Shared Socioeconomic Pathways) climate scenarios data from the Coupled Model Intercomparison Project Phase 6 (CMIP6) project for the period of 2015–2100. Along with a decrease of 5 %–15 % in precipitation in the projected period, an increase of 7 %–15 % in forest areas due to the LCLUC scenarios generated an increase in evapotranspiration values up to 38 %, resulting in a decrease of surface runoff and baseflow. Riparian reforestation and soil and water conservation practices did not necessarily enhance water availability on the simulations performed, as expected by many PES.http://www.sciencedirect.com/science/article/pii/S2214581821001609Climate changeLand cover changeFood-energy-water nexusReforestationWater security
spellingShingle Paula Prado Siqueira
Paulo Tarso S. Oliveira
Danielle Bressiani
Antonio A. Meira Neto
Dulce B.B. Rodrigues
Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
Journal of Hydrology: Regional Studies
Climate change
Land cover change
Food-energy-water nexus
Reforestation
Water security
title Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
title_full Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
title_fullStr Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
title_full_unstemmed Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
title_short Effects of climate and land cover changes on water availability in a Brazilian Cerrado basin
title_sort effects of climate and land cover changes on water availability in a brazilian cerrado basin
topic Climate change
Land cover change
Food-energy-water nexus
Reforestation
Water security
url http://www.sciencedirect.com/science/article/pii/S2214581821001609
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