Avaliação temporal e espacial da qualidade das águas superficiais da bacia hidrográfica do rio Desquite, Santa Catarina

Berlanda, Adriana; Baum, Camila Angélica; Becegato, Valter Antônio; Souza, Nayara Cristina de Lima de Vargas

doi:10.1590/s1413-415220180094

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The temperature was considered appropriate, in accordance with the regulations, while only one sample point in the section demonstrated dissolved oxygen with analytical compliance(Berlanda et al 2021; Conama 2005). The highest value of electrical conductivity was found in sector I, which has a predominance of pasture and exposed soil; only section III demonstrated compliance with the quality standard.…”

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confidence: 99%

The ecological corridor as a strategy for connectivity between Atlantic Forest fragments in Northeast Brazil

Vieira

Ramos

Lopes

2023

Preprint

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The Atlantic Forest, in the state of Bahia, Brazil, is a fragmented hotspot that faces challenges in order to overcome environmental degradation. Ecological connectivity is one strategy that may mitigate environmental impacts. The objective of the study was to develop a spatial proposal for an ecological corridor between the forest fragment of the UFSB Sosigenes Costa University Campus, the private Natural Heritage Reserve Estação Veracel and the Pau Brasil National Park, as well as understand the mechanisms for the implementation of an ecological corridor that involves different government sectors in possible public-private support strategies. The topographic, socioeconomic, ecological and legal characteristics were evaluated in a geographic information system. Using the minimum cost method, the potential areas were modeled for a spatial mapping of connectivity between the areas. The proposed corridor has a length of 9.78 km, a width of 978.70 m and a total area of 942.70 ha. Due to a predominance of anthropogenic activities, mitigation strategies would be required for its implementation. Public-private partnerships can promote forest connectivity and mitigate threats to the stability of local ecosystems, inside and outside of conservation units, and permanent preservation areas should be prioritized as a source of forest connectivity.

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confidence: 99%

The ecological corridor as a strategy for connectivity between Atlantic Forest fragments in Northeast Brazil

Vieira

Ramos

Lopes

2023

Preprint

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Seasonal analysis of aquatic water quality in a forestry area, MS, Brazil

Oliveira

Pinto

Lima

et al. 2023

Preprint

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Water quality is one of the world's greatest concerns as it is a fundamental resource for life, and it must constantly be monitored. This study aimed to carry out seasonal monitoring of water quality in the hydrographic basin of the Urutu-MS stream, which is occupied by more than 50% of eucalyptus silviculture forests. Water samples were collected from five points seasonally between autumn 2019 and summer 2020. In total, twenty-three parameters were included, including temperature (Cº), pH, Dissolved Oxygen (DO, mg/L), Conductivity (EC ), Total Alkalinity (ALK), Organic Matter (OM), Chloride (Cl), Sulfate (SO42), Total Iron (Fe Total), Color, Turbidity (NTU), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), Total Phosphorus (PT), Hardness, Aluminum (Al), Manganese (Mn), Magnesium (Mg), Sodium (Na), Calcium (Ca), Copper (Cu) and Dissolved Iron (Fe). The results showed that there is a difference in water quality between the seasons of the year depending on the different concentrations of physical-chemical parameters. Among the seasons, spring was classified in class II, while the others were classified in class I, showing the influence of the onset of rains after the dry winter. Interactions between parameters also followed conventional associations such as ALK and EC, TDS and EC, Color and Turbidity, TSS and Turbidity, EC and Ca, EC and Mg. The ALK and TDS were the main parameters that showed an influence of seasonality.

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Influência Do Índice De Chuvas E De Rejeitos De Efluentes Na Qualidade Das Águas Do Igarapé Santos (Tucuruí-Sudeste Paraense / Amazônia Oriental)

Silva¹,

El-Robrini

Freitas

2023

bpg

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A água é um dos recursos naturais mais importantes no planeta e até bem pouco tempo era considerado como um bem infinito. A realização do monitoramento espaço-sazonal das características físicas, químicas e microbiológicas dos corpos hídricos contribui na avaliação ambiental, pois se trata de atividade estratégica relevante para a conservação e gestão destes ecossistemas. Para avaliar a qualidade das águas do Igarapé Santos, as campanhas amostrais foram realizadas no período chuvoso (abril) e no período de estiagem (agosto), sendo as coletas distribuídas em seis pontos: zona rural (P1, P2), zona de transição/rural-urbano (P3) e zona urbana (P4, P5, P6). Foram coletadas amostras de água de superfície (15-30 cm) e avaliadas as características de qualidade da água (físico-química e microbiológica), através dos parâmetros: cor, temperatura, turbidez, pH, CE, sólidos totais em suspensão, ferro, fósforo total, nitrito, nitrato, amônia, coliformes totais e escherichia coli. Verificou-se que nos períodos sazonais, STS (17630 – 37957 mg/L), ferro (0,80 – 0,98 mg/L), fósforo total (0,31 – 0,82 mg/L), coliformes totais (2300 – 10.000 ufc/mL) e e-coli (1080 – 7250 ufc/mL) estão superiores ao Valor Máximo Permitido (VMP) pela Resolução CONAMA nº 357/05 para o enquadramento de corpos d’água nível classe 2. O grupo de parâmetros de qualidade da água no período chuvoso (p = 0,0000629) e de estiagem (p = 0,0000353) obtiveram-se médias heterogêneas, refletindo a influência da sazonalidade amazônica sob a qualidade das águas deste igarapé. Assim, o prosseguimento aos estudos é de fundamental importância para avaliação contínua da qualidade hídrica da bacia hidrográfica do Igarapé Santos.

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Avaliação temporal e espacial da qualidade das águas superficiais da bacia hidrográfica do rio Desquite, Santa Catarina

Cited by 3 publications

References 4 publications

The ecological corridor as a strategy for connectivity between Atlantic Forest fragments in Northeast Brazil

The ecological corridor as a strategy for connectivity between Atlantic Forest fragments in Northeast Brazil

Seasonal analysis of aquatic water quality in a forestry area, MS, Brazil

Influência Do Índice De Chuvas E De Rejeitos De Efluentes Na Qualidade Das Águas Do Igarapé Santos (Tucuruí-Sudeste Paraense / Amazônia Oriental)

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