Potential water demand from the agricultural sector in hydrographic sub-basins in the southeast of the state of São Paulo-Brazil

Carvalho, Ana Paula Pereira; Lorandi, Reinaldo; Collares, Eduardo Goulart; Lollo, José Augusto de; Moschini, Luiz Eduardo

doi:10.1016/j.agee.2021.107508

Cited by 7 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Even with a higher precipitated volume (May, July, August and September), a lower flow rate was observed in SW(D), when compared to SW(C). The flow rates in SW(D) are lower due to anthropogenic activities carried out in the area (CARVALHO et al, 2021). This flow divergence in the sub-watersheds is observed in most of the months analysed and this situation is directly related to the use of water for irrigation and/or spraying and in citrus processing (orange, tangerine, lemon) in SW(D).…”

Section: Pair 2 -Sw(c) and Sw(d)mentioning

confidence: 91%

See 1 more Smart Citation

Hydrological response of hydrographic sub-basins in the Piracicaba River Basin - Southeast Region of Brazil

Carvalho

Lorandi

Lollo

et al. 2022

Self Cite

View full text Add to dashboard Cite

Use of water for several human needs, associated with climate change, indicates the need understand the response of watersheds, in order to provide adequate water resources planning and management. This study was carried out in two pairs of hydrographic watersheds, in the Piracicaba River Basin, southeast of Brazil, analyzing water response, integrating in-situ collected precipitation and flow data, natural environment attributes, and anthropic environmental data. To support the analysis, Surface Runoff Potential Charts (SRPC). The evaluation of the physical characteristics of the sub watersheds (SW(A) and SW(B)) shows that these areas present very low to low potential, indicating greater infiltration capacity. The use and coverage of the soil partially justifies the flow changes in pair 1, since SW(A) has a larger extent of agricultural areas that can use irrigation. SW(B), even with a greater variety of crops, has a smaller cultivated area and tends to demand less water. At pair 2, the low runoff potential is mainly due to the predominance of flat relief in the sub-basins. The soils that compose them present a higher fraction of silt and clay, with thicknesses > 5m in SW(C) and varying from 0.5m, reaching depths above 5m in SW(D), however, the physical properties of these soils do not provide a low flow rate, but associated with the low slope of the land, the geological characteristics and low drainage density are configured in regions where the flow flows more slowly, contributing to the evaporation and infiltration process. The use and coverage of the soil also partially justifies the flow oscillations, due to anthropic activities in SW(C) and SW(D), such as irrigation and spraying of citrus, fertirrigation of sugarcane, irrigation of seedling nurseries, directly interfering with the availability of surface water.

show abstract

Section: Pair 2 -Sw(c) and Sw(d)mentioning

confidence: 91%

“…Regarding permanent crops, banana plantation areas have a potential demand of 176.8m³/day, citrus crops 4266.7m³/day, 126.1m³/day for coffee plantations, 22.0m³/day for mango crops. In addition, the nurseries demand 30,296.7m³/day (CARVALHO et al, 2021).…”

Section: Pair 2 -Sw(c) and Sw(d)mentioning

confidence: 99%

Hydrological response of hydrographic sub-basins in the Piracicaba River Basin - Southeast Region of Brazil

Carvalho

Lorandi

Lollo

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent decades, significant changes have occurred in the production structure and socioeconomic dynamics of the Brazilian agricultural sector (Frota et al, 2019). Furthermore, Brazil is a leading producer (Dias, Hoffmann & Martinez-Fernandez, 2019), and it is wellpositioned in a context where global agricultural demand and trade flow are expected to grow by 10% to 50% and 74% to 178%, respectively, by 2050 (Carvalho, Lorandi, Collares, Di Lollo & Moschini, 2021).…”

Section: Brazilian Agriculture Industrymentioning

confidence: 99%

Descriptive analysis of intergovernmental contracts in the Brazilian Agriculture Ministry

Souza,

Santos,

Lopes

et al. 2024

R. G. Secr.

View full text Add to dashboard Cite

The examination of intergovernmental contracts for acquiring agricultural machinery and equipment is a crucial strategy for comprehending resource distribution and partnerships across different levels of government. This study investigates these intergovernmental contracts between the Brazilian Ministry of Agriculture and Livestock (MAPA) and various municipalities, employing descriptive research and analyzing data on financial transfers from MAPA to states grouped by region. Over the period from 2020 to 2022, there was a noticeable increase in voluntary transfers, underscoring the significance of contextualized analyses for more robust inferences within this timeframe. The research employs summary measures such as mean, median, standard deviation, and coefficient of variation, as well as shape measures such as skewness and kurtosis, applied to three quantitative variables. These measures offer an overview of the distribution of financial amounts, revealing central tendencies and dispersions. Bar graphs visually represent the proportions of transfers by state, emphasizing the distribution of transfers across the country’s regions. Pearson’s linear correlation reveals a moderately strong and positive correlation between the years when intergovernmental contracts were executed and the average normalized transfer amounts. The relatively short timeframe is acknowledged as a limitation of this analysis. Hence, we recommend a more in-depth research agenda to explore intergovernmental contracts in the field of agriculture, considering their socioeconomic implications and impact on public policies.

show abstract

“…Por meio da análise dos canais e suas formas pode-se definir o padrão de drenagem, que repercute no comportamento hidrológico e litológico de cada unidade de solo (Christofoletti, 1980). Nessa condição, estudos ambientais de demanda hídrica são essenciais para determinar o uso racional dos recursos hídricos (Carvalho et al, 2021), e na avaliação da condição das bacias hidrográficas (Ahn & Kim, 2019).…”

Section: Introductionunclassified

Avaliação múltipla em bacias hidrográficas de grande escala

Silva

Celestino

Souza

et al. 2022

RSD

View full text Add to dashboard Cite

O conhecimento da morfometria, do relevo e rede de drenagem bacias hidrográficas é importante para a gestão ambiental. Portanto, este estudo visa caracterizar a morfometria e identificar as características do relevo em nove bacias hidrográficas afluentes do rio Iguaçu. A caracterização de vertentes, rede de drenagem e declividade foi realizada utilizando um Modelo Digital de Terreno (MDT) e os dados obtidos foram comparados visualmente aos resultados das cartas topográficas da Agência Nacional de Águas (ANA) (2015). As bacias analisadas apresentaram de maneira geral formas alongadas, sendo pouco suscetíveis à enchentes, com relevo ondulado, possuem drenagem intermediária a pobre e sinuosidade de intermediária a alta. Os resultados obtidos se assemelham aos obtidos pela ANA (2015), baseados em escalas menores. As hierarquias para cada bacia foram satisfatórias, assim como a metodologia utilizada, pois não requer a utilização de máquinas sofisticadas para a sua execução, e resulta em dados confiáveis com pouca perda de precisão. Os resultados são inéditos para essas bacias e as variáveis geomorfológicas estimadas podem apoiar a tomada de decisão tanto em relação aos riscos das atividades antrópicas quanto para a definição de áreas de conservação, especialmente de áreas de interesse para a conservação da água e dos ecossistemas aquáticos.

show abstract

Potential water demand from the agricultural sector in hydrographic sub-basins in the southeast of the state of São Paulo-Brazil

Cited by 7 publications

References 48 publications

Hydrological response of hydrographic sub-basins in the Piracicaba River Basin - Southeast Region of Brazil

Hydrological response of hydrographic sub-basins in the Piracicaba River Basin - Southeast Region of Brazil

Descriptive analysis of intergovernmental contracts in the Brazilian Agriculture Ministry

Avaliação múltipla em bacias hidrográficas de grande escala

Contact Info

Product

Resources

About