RESUMO:de nutrientes e estruturação do solo, considerados bioindicadores de qualidade ambiental. Objetivou-se avaliar remanescente de Caatinga, Santana do Ipanema, Alagoas. Foram realizadas coletas bimestrais, durante os meses PALAVRAS-CHAVE:. MESOFAUNA OF SOIL IN REMANESCENT OF CAATINGA, SANTANA DO IPANEMA, ALAGOASABSTRACT:

The understanding of the sedimentary dynamics is important in the characterization of impacts caused by dredging and this knowledge becomes decisive for their discernment. The aim of this article was to analyze the plume of dispersion of the sediments of the Port of Maceió. The analyzes were carried out in three sampling campaigns, before, during and after the port works, in which the collection points in the dredging and discard areas were plotted. The suspended particulate material (SPM) was analyzed using the gravimetric method and in situ sampling of the parameters turbidity, dissolved oxygen and percentage of saturation, salinity and electrical conductivity with a multiparameter probe and water transparency with Secchi disk. The parameters SPM, turbidity and transparency were analyzed by linear interpolation, while the other variables were subjected to analysis on a polynomial calibration curve. The multiparameters worked were submitted to box plot analysis in order to assess the variance between campaigns. The variation of SPM in the sample campaigns showed dynamic spatial and temporal behavior; The interpolation promoted a better visualization of the physical parameters that directly express the plume of dispersion; The supplementary variables showed trend patterns in relation to the sediment charge; Box plot analysis proved to be pertinently useful for evaluating and interpreting the results in an integrated manner, mainly due to the large number of parameters analyzed; The dredging works had a balanced management between the amount of dredged sediments and their spatial disposition at the discard site when compared to the dredging area.

No Semiárido Alagoano os estudos sobre os parâmetros de qualidade de água ainda são pouco documentados e, em alguns casos, escassos, quando comparado à região costeira do estado, desta forma, análises esporádicas nesses corpos d’água tornam-se imprescindíveis. Objetivou-se no presente artigo analisar os parâmetros físico-químicos de qualidade de água em sete nascentes localizadas nas áreas rural e urbana do município de Olho D’Água do Casado, Semiárido Alagoano. Foram coletados dados in situ de pH, temperatura, sólidos totais e condutividade elétrica com auxílio de um sensor óptico. À exceção do parâmetro temperatura, constatou-se que a maioria das nascentes analisadas, nas duas áreas, apresentaram padrões de qualidade de água que extrapolam as diretrizes da Resolução CONAMA/2005. Comparativamente, as nascentes da área urbana apresentaram maior dinâmica e maiores níveis discrepantes nos parâmetros analisados. Faz-se necessário a elaboração de um quadro com medidas mitigadoras que abranjam tanto a esfera socioeconômica quanto a ambiental, visando dar a estes mananciais uma melhor proficiência para a população residente em seu entorno, tanto para fins de abastecimento quanto para criação e agricultura, e concomitantemente buscando o equilíbrio entre sua utilização e a reparação e preservação da dinâmica natural. É pertinente afirmar que o banco de dados obtido tem elevada relevância social, científica e ambiental no que concerne à qualidade de água no Semiárido Alagoano, servindo de base para o uso e manutenção consciente das nascentes estudadas e como subsídios para futuros trabalhos. Water Quality Parameters in Springs in the Municipality of Olho D'Água do Casado, Alagoas Semiarid A B S T R A C TIn the Alagoas Semiarid, studies about the parameters of water quality are still poorly documented and, in some cases, scarce when compared to the coastal region of the state, so sporadic analyzes in these bodies of water become essential. The aim of this study was to analyze the physical and chemical parameters of water quality in seven nascent located in the rural and urban areas of the municipality of Olho D'Água do Casado, Alagoas Semiarid. In situ data of pH, temperature, total solids and electrical conductivity were collected with the aid of an optical sensor. With the exception of the temperature parameter, it was verified that most of the nascents analyzed in both areas presented water quality standards that exceed the CONAMA/2005 Resolution guidelines. Comparatively, the nascents of the urban area presented greater dynamics and higher levels of discrepancy in the analyzed parameters. It is necessary to create a cadre with mitigating measures that cover both the socioeconomic and environmental spheres, aiming to give these sources a better proficiency for the population residing in their surroundings, both for sourcing purposes and for breeding and agriculture, and concomitantly seeking the balance between its use and the repair and preservation of the natural dynamics. It is pertinent to affirm that the database obtained has high social, scientific and environmental relevance regarding water quality in the Alagoas Semiarid, serving as a basis for the conscious use and maintenance of the nascents studied and as subsidies for future works.Keywords: Spring, Semiarid, chemical-physical analysis.