Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil

Neto, José Osório do Nascimento; Andrade, Eunice Maia de; Palácio, Helba Araújo de Queiroz; Sales, Maria Monaliza de; Maia, Anthony Rafael Soares

doi:10.5935/1806-6690.20170007

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Tal fato foi constatado também por Coelho et al (2014), onde ao estudar a dinâmica do uso e ocupação do solo na bacia hidrográfica do riacho São Paulo, localizada no semiárido brasileiro, foi elucidado que junto com o rápido crescimento das áreas de pastagem/agricultura, a vegetação nativa foi sendo substituída por uma paisagem cada vez mais devastada. No estudo realizado por Araújo Neto et al (2017), no vale do rio Trussu -Ceará, foi visto que as atividades antrópicas passaram a ocupar 40,7% da área estudada, gerando uma redução de 38,7% para 11,2% das áreas florestais para uso em atividades humanas como agricultura, pastoreio e urbanização.…”

Section: Resultsunclassified

Temporal evolution analysis of the use and occupation of the soil in the Jucuruçu hydrographic basin, Bahia

Silva

Farias

Souza

2023

CLIUM

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The process of replacing areas of native vegetation with agricultural plantation areas is becoming more and more intense. This fact generates concern regarding the deforestation and occupation of the regions of Atlantic Forest. The aim’s work was to identify the change in land use and occupation between 1990 and 2013 in the Jucuruçu river basin, Brazil. Soil use and occupation data were obtained through images from the Landsat 5 Sensor Thematic Maper for the years between 1990 and 2006, and exclusively in the year of 2013 images of the RapidEye Satellite were used. These images were pre-processed and classified by manual classification. Based on the results presented, there were variations in all classes of land use and occupation during the analyzed period, generating 19 classes for analysis. According to the results obtained, the Jucuruçu river basin presented the classes well-kept pasture and pasture were predominant in its territory during the entire study period, corresponding to 63% of the total area of the basin, while the areas of native vegetation presented a reduction of 52% in their areas.

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Section: Resultsunclassified

Temporal evolution analysis of the use and occupation of the soil in the Jucuruçu hydrographic basin, Bahia

Silva

Farias

Souza

2023

CLIUM

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“…Well 1, in turn, presented a positive relationship with the conductivity, hardness and pH parameters and the native vegetation. In comparison with literature data, Araújo Neto, Andrade, Palácio, Sales, and Maia (2017) studied the influence of the use and occupation of the soil on the water quality in the valley of Rio Trussu in Ceará State (Brazil), and found that over the last ten years the region under study has undergone major changes due to anthropogenic activity that directly affected the characteristics of the groundwater quality. They highlighted the importance of studies that relate the local characteristics with the quality of the water.…”

Section: Relation Of Use and Occupation Of The Soil With Water Qualitymentioning

confidence: 99%

Water quality for rural home supplying in the south of Brazil

Hollas

Pokrywiecki

Prado

et al. 2019

Acta Sci. Biol. Sci.

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Underground and surface water as a result of human activity are increasingly polluted. Mainly due to improper disposal of waste, discharge of effluents, among other actions that compromise the environment. The water analysis is necessary to determine and evaluate the situation of water supply to the population. This study evaluated the supply situation of three rural communities located in the south of Brazil, where the water is carried out through the abstraction of groundwater. Pastures, fields and remnants of native vegetation characterize the region. The water quality used to supply was what motivated the accomplishment of this work. The wells are unprotected in the middle of the pastures near to black cesspits and crops that use frequently agrochemicals. The water quality was characterized over one year by physicalchemical, microbiological and toxicological characteristics. The results were compared to water potability standards in Brazil. In order to ensure sanitary conditions for this population, environmental education actions were carried out given the importance of access the information. It follows that the resources analyzed need disinfection to ensure better and safer water supply.

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“…The study of water quality in waterbodies is of fundamental importance to determine the health of the environment and consequently public health (MEDEIROS et al, 2016). In the semi-arid region of Brazil, such studies play a crucial role in guaranteeing economic and social development, since in this region water is a limiting resource due to its scarcity and intermittency throughout almost the entire hydrographic area (ARAÚJO NETO et al, 2017). It is therefore essential to monitor water quality, in order to prevent the scarce water sources of this region from becoming unusable.…”

Section: Introductionmentioning

confidence: 99%

“…In aquatic ecosystems, the health of the environment can be inferred based on a characterisation of its structure (biological elements and their interaction with physical and chemical variables) and function (processes fundamental to maintaining biodiversity, such as the production, consumption and decomposition of organic matter) (ARAÚJO et al, 2011). As such, various studies have used remote sensing to quantify the effects that different land uses and temporal changes in the structure of the landscape have caused to the health of waterbodies (ARAÚJO NETO et al, 2017;CHAVES et al, 2019;MENEZES et al, 2016;VA N ZELA;HERNANDEZ;FRANCO, 2010).…”

Section: Introductionmentioning

confidence: 99%

Dinâmica limnológica em reservatório artificial e rio intermitente na região semiárida em função do uso e ocupação do solo

Duarte

Pereira

Lima

et al. 2021

RCA

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Remote sensing coupled with the measurement of physical, chemical and biological variables is an important tool in water resource management. The aim of this study, therefore, was to evaluate the dynamics of the physical, chemical and biological variables of the waters of an intermittent river and an artificial surface reservoir using multivariate analysis and in response to land use and occupation in the hydrographic basin. The study was carried out in the hydrographic basin of the River Cruxati in four study areas (three river areas and one artificial reservoir), with images obtained from the OLI sensor of the Landsat-8 satellite. The limnological variables measured were pH, electrical conductivity, dissolved oxygen, turbidity, nutrients (total nitrogen and total phosphorus) and chlorophyll a. The limnological variables were analysed using Principal Component Analysis -PCA, Tukey's test and Cluster Analysis. Eutrophication of the areas under study was calculated using the Trophic State Index. The PCA allowed three components to be selected that indicated the quality of the surface water, river and artificial reservoir, explaining 88.57% of the total variance. The limnological variables responsible for the grouping were electrical conductivity, dissolved oxygen and turbidity. Land use and occupation has influenced water quality in the stretches of river. Anthropisation has had an influence on the levels of dissolved oxygen, and the presence of agricultural areas has caused an increase in turbidity. However, the most conserved landscape (artificial reservoir) had the highest degree of eutrophication due to the difference in water dynamics between the lentic and lotic environments.

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Influence of land use/occupation on water quality in the Trussu river valley, Ceará, Brazil

Abstract: Influência do uso/ocupação da terra na qualidade das águas no vale do rio Trussu, Ceará, Brasil

Cited by 5 publications

References 8 publications

Temporal evolution analysis of the use and occupation of the soil in the Jucuruçu hydrographic basin, Bahia

Temporal evolution analysis of the use and occupation of the soil in the Jucuruçu hydrographic basin, Bahia

Water quality for rural home supplying in the south of Brazil

Dinâmica limnológica em reservatório artificial e rio intermitente na região semiárida em função do uso e ocupação do solo

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