25 documents found, page 1 of 3
Avaliação de metais em solos com culturas de girassol e milho (caso de estudo: ...
Catarino, Adriana; Martins, Inês; Mourinha, Clarisse; Tomaz, Alexandra; Dôres, José; Patanita, Manuel; Palma, PatríciaO objetivo do trabalho foi avaliar a concentração e biodisponibilidade de metais, em três solos plantados com girassol e milho no aproveitamento hidroagrícola Brinches-Enxoé, durante o ciclo vegetativo de 2018 (início: T1 (abril) e final: T2 (outubro)). A análise foi realizada por espectrometria de massa com plasma indutivamente acoplado (ICP-MS), posterior a uma digestão com água-régia para metais totais e uma...
Patterns, risks, and forecasting of irrigation water quality under drought cond...
Tomaz, Alexandra; Catarino, Adriana; Tomaz, Pedro; Fabião, Marta; Palma, PatríciaThe seasonal and interannual irregularity of temperature and precipitation is a feature of the Mediterranean climate that is intensified by climate change and constitutes a relevant driver of water and soil degradation. This study was developed during three years in a hydro-agricultural area of the Alqueva irrigation system (Portugal) with Mediterranean climate conditions. The sampling campaigns included collec...
Pesticide water variability and prioritization: The first steps towards improvi...
Caturra, Júnia; Vara, Manuel García; Catarino, Adriana; Martins, Inês; Mourinha, Clarisse; Fabião, Marta; Costa, Maria João; Barbieri, Maria VittoriaThe presence of pesticides in aquatic ecosystems poses significant risks to non-target organisms, necessitating monitoring and environmental risk assessment. This study aimed to evaluate the dynamics and environmental risk of pesticides in a hydro-agricultural area with intensive agricultural practices, in the Mediterranean region (South of Portugal). Seasonality and location influenced pesticide numbers and co...
Water quality assessment of a hydro-agricultural reservoir in a Mediterranean R...
Catarino, Adriana; Martins, Inês; Mourinha, Clarisse; Santos, João; Anastácio, Pedro; Tomaz, Alexandra; Palma, PatríciaIn regions where drought has become a common occurrence for most of the year and where agriculture is the main economic activity, the development of hydro-agricultural systems has made it possible to improve water management. Despite this, the intensification of agriculture combined with climate change leads to a potential decrease in water quality and water management practices are essential to improve agro-en...
The usefulness of ecotoxicological tools to improve the assessment of water bod...
Novais, Maria Helena; Penha, Alexandra Marchã; Catarino, Adriana; Martins, Inês; Fialho, Sofia; Lima, Adriana; Morais, Manuela; Palma, PatríciaThis study aimed to analyse the added value of using ecotoxicological tools to complement and improve the assessment of natural water bodies status, in situations of climate change, with a higher frequency of extreme events as floods or droughts. Four water bodies of streams in the Guadiana Basin (´Alamos, Amieira, Lucef´ecit, Zebro) were studied in 2017 and 2018 and classified based on the Water Framework Dire...
Water and carbon footprints in irrigated vineyards: An on‑farm assessment
Martins, Inês; Catarino, Adriana; Boteta, Luís; Santos, Marta; Palma, Patrícia; Patanita, Manuel; Tomaz, Alexandra; Dores, José Manuel de JesusThis research aims to contribute to improving water and carbon efficiency in irrigated grapevine production in the dry Mediterranean climate of southern Europe. In regions with water scarcity, irrigation has become a relevant input in viticulture, essential to increase productivity and achieve profits. The joint estimation of the water footprint (WF) and the carbon footprint (CF) can help to comprehensively ass...
Pesticide water variability and prioritization: The first steps towards improvi...
Alves-Ferreira, Júnia; García Vara, Manuel; Catarino, Adriana; Martins, Inês; Mourinha, Clarisse; Fabião, Marta; Costa, Maria JoãoThe presence of pesticides in aquatic ecosystems poses significant risks to non-target organisms, necessitating monitoring and environmental risk assessment. This study aimed to evaluate the dynamics and environmental risk of pesticides in a hydro-agricultural area with intensive agricultural practices, in the Mediterranean region (South of Portugal). Seasonality and location influenced pesticide numbers and co...
Effect of different irrigated crop successions on soil carbon and nitrogen–phos...
Catarino, Adriana; Tomaz, Alexandra; Palma, Patrícia; Neto, Cláudia; Sobreiro, Justino; Dores, José Manuel de Jesus; Patanita, ManuelSustainability in agroecosystems relies on the optimized use of resources to achieve consistent yields while maintaining or improving soil health. The monitoring of soil quality is crucial when changes from rainfall-fed to irrigated crop systems occur. The objective of this study was to assess the impact of different crop successions in the Mediterranean area under irrigation and different technical practices. ...
Discriminação espacial e temporal de atributos do solo através de análise estat...
Tomaz, Alexandra; Martins, Inês; Catarino, Adriana; Mourinha, Clarisse; Dôres, José; Fabião, Marta; Boteta, Luís; Coutinho, João; Patanita, ManuelEfetuou-se o estudo da variabilidade temporal e espacial de variáveis do solo, durante três anos em três parcelas agrícolas com culturas anuais regadas, em duas camadas (0-20 cm e 20-40 cm), recorrendo a Análise Fatorial (FA) e Análise Discriminante (DA). Com a FA agruparam-se os parâmetros observados num menor número de variáveis latentes relacionadas com atributos do solo. A DA foi usada para classificar e id...
Avaliação agronómica e ecotoxicológica de solos do Alentejo em parcelas regadas...
Catarino, Adriana; Martins, Inês; Mourinha, Clarisse; Tomaz, Alexandra; Patanita, Manuel; Palma, PatríciaO desenvolvimento do regadio no Sul de Portugal tem acarretado benefícios positivos, permitindo a diversificação das culturas, a expansão e intensificação agrícola, e a melhoria económica da região. No entanto, esta mudança do uso do solo terra tem sido acompanhada pela intensificação de utilização de fatores de produção. Assim, o objetivo deste trabalho foi avaliar a qualidade de solos de duas parcelas de gira...