Analysis of a Landscape Intensely Modified by Agriculture in the Tietê–Jacaré Watershed, Brazil

Trevisan, Diego Peruchi; Bispo, Polyanna da Conceição; Gou, Yongsheng; Souza, Bianca Fogaça de; Liesenberg, Veraldo; Harris, Angela; Balzter, Heiko; Moschini, Luiz Eduardo

doi:10.3390/su13169304

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…Additionally, the area is environmentally significant due to the presence of important ecosystems for biodiversity conservation, such as remnants of the Cerrado and Atlantic Forest [52,53]. Over the years, there has been an intense transformation of LULC in the watershed, resulting in a decline in natural ecosystems and the expansion of agricultural areas [54]. These LULC changes have affected the hydrosedimentology of the watershed, altering the flows of water, nutrients, and sediments [55][56][57] while increasing the risk of degradation of water resources, including underground aquifers [58].…”

Section: Analysis Of Land Use and Land Cover Changesmentioning

confidence: 99%

Enhancing Water Ecosystem Services Using Environmental Zoning in Land Use Planning

Anjinho,

Barbosa,

Peponi

et al. 2024

Sustainability

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Land use and land cover (LULC) changes alter the structure and functioning of natural ecosystems, impacting the potential and flow of ecosystem services. Ecological restoration projects aiming to enhance native vegetation have proven effective in mitigating the impacts of LULC changes on ecosystem services. A key element in implementing these projects has been identifying priority areas for restoration, considering that resources allocated to such projects are often limited. This study proposes a novel methodological framework to identify priority areas for restoration and guide LULC planning to increase the provision of water ecosystem services (WESs) in a watershed in southeastern Brazil. To do so, we combined biophysical models and multicriteria analysis to identify priority areas for ecological restoration, propose environmental zoning for the study area, and quantify the effects of LULC changes and of a planned LULC scenario (implemented environmental zoning) on WES indicators. Previous LULC changes, from 1985 to 2019, have resulted in a nearly 20% increase in annual surface runoff, a 50% increase in sediment export, a 22% increase in total nitrogen (TN) export, and a 53% increase in total phosphorus (TP) export. Simultaneously, they reduced the provision of WESs (baseflow −27%, TN retention −10%, and TP retention −16%), except for sediment retention, which increased by 35% during the analyzed period. The planned LULC scenario successfully increased the provision of WESs while reducing surface runoff and nutrient and sediment exports. The methodology employed in this study proved to be effective in guiding LULC planning for improving WES. The obtained results provide a scientific foundation for guiding the implementation of WES conservation policies in the studied watershed. This method is perceived to be applicable to other watersheds.

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Section: Analysis Of Land Use and Land Cover Changesmentioning

confidence: 99%

Enhancing Water Ecosystem Services Using Environmental Zoning in Land Use Planning

Anjinho,

Barbosa,

Peponi

et al. 2024

Sustainability

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A spatiotemporal classification approach to evaluate the impacts of land use and land cover changes before and after the Três Irmãos reservoir formation in the Tietê River, Brazil

Lucchetta

Watanabe

Carmo

2023

Model. Earth Syst. Environ.

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O Papel Da Educação Ambiental Na Gestão Da Bacia Hidrográfica Do Arroio São Lourenço/Rs a Partir Da Identificação Do Uso E Ocupação Do Solo

Pereira,

Da Silva,

Jährig

et al. 2023

Rev. Foco

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As bacias hidrográficas enfrentam conturbações ambientais que dificultam a qualidade de um manancial hídrico e o volume apropriado para o abastecimento humano. Diante disso, é necessário haver cuidados advindos da população e das atividades desempenhadas nas áreas. As mudanças no uso e cobertura da terra estão aumentando ao longo do tempo. Nesse sentido, o objetivo deste estudo foi investigar quais são as atividades (uso e ocupação do solo) que acontecem na bacia Hidrográfica do Arroio São Lourenço-RS e como a educação ambiental poderia auxiliar na sua gestão. Foi realizado um mapeamento a partir de ferramentas do Sistema de Informação Geográfica (SIG), com o software QGIS, no qual foi utilizado a classificação "pixel a pixel" de imagens de satélites Landsat de 2021. Como resultado, foi identificado que a área urbana tem uma ocupação modesta, com relação a agricultura, que é a principal atividade da bacia. Portanto, o grande potencial de degradação desta bacia provém da agricultura. Destarte, levar a educação ambiental para o campo seria de grande valia para construir a conscientização ambiental, a fim de preservar os ecossistemas e principalmente o recurso hídrico a qual é responsável pelo abastecimento do município de São Lourenço do Sul.

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Analysis of a Landscape Intensely Modified by Agriculture in the Tietê–Jacaré Watershed, Brazil

Cited by 3 publications

References 44 publications

Enhancing Water Ecosystem Services Using Environmental Zoning in Land Use Planning

Enhancing Water Ecosystem Services Using Environmental Zoning in Land Use Planning

A spatiotemporal classification approach to evaluate the impacts of land use and land cover changes before and after the Três Irmãos reservoir formation in the Tietê River, Brazil

O Papel Da Educação Ambiental Na Gestão Da Bacia Hidrográfica Do Arroio São Lourenço/Rs a Partir Da Identificação Do Uso E Ocupação Do Solo

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