Land cover changes implications in energy flow and water cycle in São Francisco Basin, Brazil, over the past 7 decades

Santos, Vitor Juste dos; Calijuri, Maria Lúcia; Assis, Leonardo Campos de

doi:10.1007/s12665-022-10210-5

Cited by 4 publications

(4 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The conclusion of [19] corroborated the observed behavior of the PET's trend in SFRB. These authors pointed out that the anthropic modifications in LULC contribute to an increase in the radiation and heat flux near the surface, leading to an increase in PET.…”

Section: Trend Of Hydrological Variablessupporting

confidence: 80%

“…The first hypothesis is corroborated by [19,52]. These authors attributed the reduction in the flow of the São Francisco River to the increase in irrigated agriculture, the changes in surface runoff generation, and the increase in evapotranspiration.…”

Section: Trend Of Hydrological Variablesmentioning

confidence: 87%

“…Therefore, ε 1 and ε 2 are the coefficients of flow elasticity in relation to precipitation and the PET, respectively. Rewriting Equation (19), one obtains:…”

Section: For Peer Review 10 Of 31mentioning

confidence: 99%

“…Regarding anthropic factors, studies that evaluate the impacts of these factors on the behavior of the streamflow in SFRB as a central theme are still scarce, causing this problem to usually be treated in a secondary way. However, recent studies, such as those of [19,20], have brought these impacts to the center of discussion.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Anthropic Changes in Land Use and Land Cover and Their Impacts on the Hydrological Variables of the São Francisco River Basin, Brazil

et al. 2022

View full text Add to dashboard Cite

The growing impact of human activities on the environment has increased their influence on the planet’s natural cycles, especially in relation to the hydrological cycle of watersheds. The fundamental processes for its water and energy balance have been affected, which influences water availability and surface streamflow. This study sought to evaluate the anthropogenic impacts on the hydrological cycle of the São Francisco River Basin (SFRB), Brazil, between 1985 and 2015. The study area comprised SFRB and 10 sub-basins for general and specific analyses, respectively. Analyzed data consisted of Land Use and Land Cover (LULC), precipitation, streamflow, and temperature. The methodology incorporated: (i) assessment of LULC dynamics; (ii) trend analysis with the Mann–Kendall method and Sen’s Slope; and (iii) decomposition of total streamflow variation via Budyko’s hypothesis and climate elasticity of streamflow. As a result, it was possible to detect an anthropic modification of SFRB, which is the main component of its streamflow variation, in addition to increased streamflow sensitivity to climate variations. In addition, the divergent behavior in the trends of hydrological variables suggests a change in the streamflow response to precipitation. Therefore, the results allowed us to identify and quantify the impacts of anthropic modifications on the hydrological cycle of the SFRB.

show abstract

Section: Trend Of Hydrological Variablessupporting

confidence: 80%

Section: Trend Of Hydrological Variablesmentioning

confidence: 87%

“…Therefore, ε 1 and ε 2 are the coefficients of flow elasticity in relation to precipitation and the PET, respectively. Rewriting Equation (19), one obtains:…”

Section: For Peer Review 10 Of 31mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Anthropic Changes in Land Use and Land Cover and Their Impacts on the Hydrological Variables of the São Francisco River Basin, Brazil

et al. 2022

View full text Add to dashboard Cite

show abstract

Two decades of land cover mapping in the Río de la Plata grassland region: The MapBiomas Pampa initiative

Baeza

Vélez‐Martin²,

Abelleyra

et al. 2022

Remote Sensing Applications: Society and Environment

View full text Add to dashboard Cite

Mapeamento de uso e ocupação do solo utilizando dados do MapBiomas: uma abordagem manual para aumento de precisão aplicada em Meridiano, São Paulo

Xavier,

Menezes,

Da Silva

2024

Rev. Bras. Geog. Fis.

View full text Add to dashboard Cite

O processamento automatizado dos dados da plataforma MapBiomas tem sido amplamente utilizado para o mapeamento do uso e cobertura do solo. No entanto, podem ocorrer confusões devido à escala temporal e à diversificação das atividades de ocupação. Nesse contexto, este trabalho teve como objetivo apresentar uma abordagem manual para aumentar a precisão das classes de uso e cobertura do solo no município de Meridiano. A abordagem adotada consistiu na correção e inserção de novas camadas utilizando imagens dos satélites Google Earth Pro e RapidEye, que foram posteriormente verificadas por validação terrestre. Os resultados revelaram melhorias significativas, especialmente na classificação de áreas inicialmente identificadas como mosaico de agricultura e pastagem, que totalizavam 4907 hectares. Após as correções, essas áreas foram distribuídas entre as culturas de cana-de-açúcar, citrus e vegetações campestres. Além disso, houve um aumento significativo na classe de silvicultura, que anteriormente havia sido confundida com formações florestais devido à predominância de heveicultura já de porte alto. A precisão obtida na caracterização do uso e ocupação do solo forneceu informações valiosas sobre a utilização da terra e as atividades econômicas predominantes, contribuindo para a compreensão e monitoramento das mudanças ambientais. Embora a metodologia tenha se mostrado adequada e de fácil aplicação, é importante ressaltar que pode ser limitada em áreas maiores devido à necessidade de procedimentos manuais extensos e detalhados. Por fim, destaca-se a relevância da utilização da Coleção 6 do MapBiomas neste estudo, que proporcionou uma base consistente e atualizada para o mapeamento do uso e cobertura do solo.

show abstract

Land cover changes implications in energy flow and water cycle in São Francisco Basin, Brazil, over the past 7 decades

Cited by 4 publications

References 57 publications

Anthropic Changes in Land Use and Land Cover and Their Impacts on the Hydrological Variables of the São Francisco River Basin, Brazil

Anthropic Changes in Land Use and Land Cover and Their Impacts on the Hydrological Variables of the São Francisco River Basin, Brazil

Two decades of land cover mapping in the Río de la Plata grassland region: The MapBiomas Pampa initiative

Mapeamento de uso e ocupação do solo utilizando dados do MapBiomas: uma abordagem manual para aumento de precisão aplicada em Meridiano, São Paulo

Contact Info

Product

Resources

About