Rosiméri Fraga - Academia.edu (original) (raw)
Papers by Rosiméri Fraga
The strawberry cultivation has been among the main features in family production systems in Turuç... more The strawberry cultivation has been among the main features in family production systems in Turuçu-RS (Brazil), being produced and sold both fresh as well as in the processed form, allowing to the farmers employment generation, income and social inclusion. The strawberry production system, in general, is characterized by the use of soil cover with black color plastic, the use of low tunnels and drip irrigation systems with the fertilizer application through irrigation water (fertigation). The importance and benefits of irrigation for strawberry production have been found by farmers, as it has allowed the improvement of fresh fruits quality. However, as strawberry fields were mostly located far from major water sources, many farmers need to build dams to impound water efficiently, to assure the success of the irrigation for crops, and also to ensure the quality and quantity of water for these activities. Based on this, this study aimed to evaluate: i. spatial and temporal behavior of...
Anais Da Academia Brasileira De Ciencias, 2022
Degradation of water quality in water bodies, usually, occurs because of anthropogenic actions, t... more Degradation of water quality in water bodies, usually, occurs because of anthropogenic actions, that is, due to occupation and use of their margins, as well as for natural factors. Considering those aspects, remote sensing has becoming an alternative to help monitoring big water bodies, such as the Mirim Lagoon. Located in the extreme Southern of the Rio Grande do Sul state, Brazil, the lagoon has a great importance in economic, social, and environmental aspects of that region. Although, nowadays excess of nutrients and of suspended solids has been putting at risk the quality of its water. Therefore, the aim of this study was to develop empirical models and mapping water quality parameters in the Northern Mirim Lagoon, using data from the MSI/Sentinel-2 sensor. Optically active components, such as suspended solids, are used as indicators of water quality during the characterization of the aquatic environment, making it possible to infer about water composition, since the intensity o...
The environmental degradation constitutes a strong threat to the family farming sustainability. W... more The environmental degradation constitutes a strong threat to the family farming sustainability. Water quality may be affected both by natural factors as well as by human activities.
O cultivo do morangueiro tem sido destaque em sistemas familiares de producao em Turucu-RS, sendo... more O cultivo do morangueiro tem sido destaque em sistemas familiares de producao em Turucu-RS, sendo produzido e comercializado in natura e de forma processada, propiciando aos produtores geracao de emprego, renda e inclusao social. O sistema de producao de morango, de forma geral, e caracterizado pela utilizacao de cobertura do solo com plastico de coloracao preta, pela utilizacao de tuneis baixos e pelo sistema de irrigacao por gotejamento com aplicacao de fertilizantes via agua de irrigacao (fertirrigacao). A importância e os beneficios do uso da tecnica de irrigacao na cultura do morango vem sendo constatados pelos agricultores, ja que tem influenciado na melhoria da qualidade do produto in natura . Entretanto, em virtude das lavouras de morango localizarem-se na sua maior parte distantes de grandes mananciais, muitos agricultores necessitam construir barramentos para represar a agua de forma eficiente, garantir o exito da irrigacao das lavouras, e tambem para assegurar a quantidad...
Current Agricultural Science and Technology, 2012
A degradacao ambiental constitui uma forte ameaca a sustentabilidade da agricultura familiar, sen... more A degradacao ambiental constitui uma forte ameaca a sustentabilidade da agricultura familiar, sendo que a qualidade da agua pode ser afetada tanto por fatores naturais, como pela atividade antropica. O conhecimento sobre o nivel de influencia de fatores naturais sobre a qualidade da agua pode servir de indicador do nivel de influencia das atividades antropicas. O objetivo deste trabalho foi avaliar a possivel existencia de relacao entre a precipitacao e os parâmetros de qualidade de agua em 14 fontes de captacao usadas para irrigacao do morangueiro, em propriedades rurais de base familiar, no municipio de Turucu, RS. As amostras de agua foram coletadas mensalmente, durante 16 meses. Foram analisados oito parâmetros fisico-quimicos (alcalinidade, condutividade eletrica, DBO, oxigenio dissolvido, solidos dissolvidos, solidos suspensos, solidos totais e turbidez). Foram realizadas analises de correlacao linear simples entre os valores de cada parâmetro de qualidade e os totais de pre...
Remote Sensing Applications: Society and Environment, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
The strawberry cultivation has been among the main features in family production systems in Turuç... more The strawberry cultivation has been among the main features in family production systems in Turuçu-RS (Brazil), being produced and sold both fresh as well as in the processed form, allowing to the farmers employment generation, income and social inclusion. The strawberry production system, in general, is characterized by the use of soil cover with black color plastic, the use of low tunnels and drip irrigation systems with the fertilizer application through irrigation water (fertigation). The importance and benefits of irrigation for strawberry production have been found by farmers, as it has allowed the improvement of fresh fruits quality. However, as strawberry fields were mostly located far from major water sources, many farmers need to build dams to impound water efficiently, to assure the success of the irrigation for crops, and also to ensure the quality and quantity of water for these activities. Based on this, this study aimed to evaluate: i. spatial and temporal behavior of...
Anais Da Academia Brasileira De Ciencias, 2022
Degradation of water quality in water bodies, usually, occurs because of anthropogenic actions, t... more Degradation of water quality in water bodies, usually, occurs because of anthropogenic actions, that is, due to occupation and use of their margins, as well as for natural factors. Considering those aspects, remote sensing has becoming an alternative to help monitoring big water bodies, such as the Mirim Lagoon. Located in the extreme Southern of the Rio Grande do Sul state, Brazil, the lagoon has a great importance in economic, social, and environmental aspects of that region. Although, nowadays excess of nutrients and of suspended solids has been putting at risk the quality of its water. Therefore, the aim of this study was to develop empirical models and mapping water quality parameters in the Northern Mirim Lagoon, using data from the MSI/Sentinel-2 sensor. Optically active components, such as suspended solids, are used as indicators of water quality during the characterization of the aquatic environment, making it possible to infer about water composition, since the intensity o...
The environmental degradation constitutes a strong threat to the family farming sustainability. W... more The environmental degradation constitutes a strong threat to the family farming sustainability. Water quality may be affected both by natural factors as well as by human activities.
O cultivo do morangueiro tem sido destaque em sistemas familiares de producao em Turucu-RS, sendo... more O cultivo do morangueiro tem sido destaque em sistemas familiares de producao em Turucu-RS, sendo produzido e comercializado in natura e de forma processada, propiciando aos produtores geracao de emprego, renda e inclusao social. O sistema de producao de morango, de forma geral, e caracterizado pela utilizacao de cobertura do solo com plastico de coloracao preta, pela utilizacao de tuneis baixos e pelo sistema de irrigacao por gotejamento com aplicacao de fertilizantes via agua de irrigacao (fertirrigacao). A importância e os beneficios do uso da tecnica de irrigacao na cultura do morango vem sendo constatados pelos agricultores, ja que tem influenciado na melhoria da qualidade do produto in natura . Entretanto, em virtude das lavouras de morango localizarem-se na sua maior parte distantes de grandes mananciais, muitos agricultores necessitam construir barramentos para represar a agua de forma eficiente, garantir o exito da irrigacao das lavouras, e tambem para assegurar a quantidad...
Current Agricultural Science and Technology, 2012
A degradacao ambiental constitui uma forte ameaca a sustentabilidade da agricultura familiar, sen... more A degradacao ambiental constitui uma forte ameaca a sustentabilidade da agricultura familiar, sendo que a qualidade da agua pode ser afetada tanto por fatores naturais, como pela atividade antropica. O conhecimento sobre o nivel de influencia de fatores naturais sobre a qualidade da agua pode servir de indicador do nivel de influencia das atividades antropicas. O objetivo deste trabalho foi avaliar a possivel existencia de relacao entre a precipitacao e os parâmetros de qualidade de agua em 14 fontes de captacao usadas para irrigacao do morangueiro, em propriedades rurais de base familiar, no municipio de Turucu, RS. As amostras de agua foram coletadas mensalmente, durante 16 meses. Foram analisados oito parâmetros fisico-quimicos (alcalinidade, condutividade eletrica, DBO, oxigenio dissolvido, solidos dissolvidos, solidos suspensos, solidos totais e turbidez). Foram realizadas analises de correlacao linear simples entre os valores de cada parâmetro de qualidade e os totais de pre...
Remote Sensing Applications: Society and Environment, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.