Revista Ambiente e Agua最新文献_第5页

Removal of lead in aqueous solutions using amorphous nanoaluminophosphates 用无定形纳米磷酸铝去除水溶液中的铅

Revista Ambiente e Agua Pub Date : 2014-12-08 DOI: 10.4136/AMBI-AGUA.1437

W. Rondón, Ángela B. Sifontes, David M. Freire, M. Quintal, E. Cañizales, F. J. Méndez, Ligia Llovera, Yraida Díaz, J. Brito

引用次数: 1

Variabilidade espaço-temporal da temperatura e difusividade térmica do solo de Lagoa Seca-PB Lagoa Seca PB土壤温度和热扩散率的时空变化

Revista Ambiente e Agua Pub Date : 2014-10-16 DOI: 10.4136/AMBI-AGUA.1474

J. Diniz, R. T. Dantas, J. F. Filho

引用次数: 3

Degradação de trilhas na Reserva Ecológica da Juatinga em Paraty - Rio de Janeiro 在Paraty -里约热内卢的Juatinga生态保护区的小径退化

Revista Ambiente e Agua Pub Date : 2014-10-16 DOI: 10.4136/AMBI-AGUA.1434

L. A. Rangel, A. Guerra

引用次数: 4

Correlação entre condição da superfície do solo agrícola e o coeficiente de absorção acústica 农业土壤表面状况与吸声系数的相关性

Revista Ambiente e Agua Pub Date : 2014-10-16 DOI: 10.4136/AMBI-AGUA.1423

R. Freire, C. R. G. Tavares, P. Soares, M. H. Abreu

引用次数: 1

Estrutura da paisagem, relevo e hidrografia de uma microbacia como suporte a um programa de pagamento por serviços ambientais relacionados à água 流域的景观结构、地形和水文，以支持与水有关的环境服务支付方案

Revista Ambiente e Agua Pub Date : 2014-08-29 DOI: 10.4136/AMBI-AGUA.1326

F. S. Rosa, K. Tonello, Roberta Averna Valente, R. W. Lourenço

引用次数: 6

Flow in Unsaturated Soils and Transport of Herbicides in Agricultural Areas 非饱和土壤的流动与农田除草剂的迁移

Revista Ambiente e Agua Pub Date : 2014-08-29 DOI: 10.4136/AMBI-AGUA.1165

T. Reyna, J. Linares, S. Reyna, M. Lábaque

{"title":"Flow in Unsaturated Soils and Transport of Herbicides in Agricultural Areas","authors":"T. Reyna, J. Linares, S. Reyna, M. Lábaque","doi":"10.4136/AMBI-AGUA.1165","DOIUrl":"https://doi.org/10.4136/AMBI-AGUA.1165","url":null,"abstract":"La prediccion del comportamiento de los plaguicidas liberados en el ambiente es necesaria para anticipar y minimizar, impactos adversos fuera del punto de aplicacion. Esto significa que debemos comprender que le sucede a un pesticida que ha sido aplicado en el campo, y predecir su destino en el ambiente. Con este objetivo se estudio una parcela experimental del Instituto Nacional de Tecnologia Agropecuaria (INTA) en la localidad de Manfredi (Cordoba; Argentina). Se realizaron mediciones del contenido de agua en suelo (por sonda de neutrones y por el metodo gravimetrico) y la precipitacion ocurrida en el sitio durante un periodo de tiempo con el fin de modelar el proceso de humedecimiento. Tambien se midieron los contaminantes a distintas profundidades y a distintos tiempos de aplicacion de atrazina al predio. Con estos datos se busco modelar el proceso con el programa HYDRUS. Los resultados obtenidos muestran que el modelo subestima los contenidos de humedad presentes en el horizonte superior, mientras que para profundidades mayores frente a eventos de precipitaciones normales y de riego, el frente de humedecimiento no genera una recarga directa de la freatica. Los resultados obtenidos muestran que la simulacion numerica resulta una herramienta valida para el estudio del movimiento del flujo y el transporte de sustancias contaminantes en la zona no saturada. La principal limitante para evaluar la validez de estos modelos son la poca disponibilidad de datos de estudios de campo.","PeriodicalId":38374,"journal":{"name":"Revista Ambiente e Agua","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70662472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Avaliação do comportamento dinâmico da carga dissolvida e particulada fluvial de uma microbacia reflorestada com eucaliptos 桉树造林流域溶解和颗粒负荷的动态特性评价

Revista Ambiente e Agua Pub Date : 2014-08-29 DOI: 10.4136/AMBI-AGUA.1384

Diego Vendramini, Helder de Oliveira, J. Mortatti

{"title":"Avaliação do comportamento dinâmico da carga dissolvida e particulada fluvial de uma microbacia reflorestada com eucaliptos","authors":"Diego Vendramini, Helder de Oliveira, J. Mortatti","doi":"10.4136/AMBI-AGUA.1384","DOIUrl":"https://doi.org/10.4136/AMBI-AGUA.1384","url":null,"abstract":"The main aspects of dissolved and particulate loads dynamic behavior in a small catchment of reforested eucalyptus were evaluated for two rainfall events of 28 and 25 mm before and after clear cutting. For the dissolved load, cations and anions varied inversely with the discharge, showing mechanisms of dilution, but with significant inputs before high discharges. The comparison between distribution concentrations curves with their theoretical dilution models revealed predominance of diffuse inputs, but with significant contribution of fertilization treatments, cases of K+, Cl- and SO42-, mainly after clear cutting. The fluvial particulate load, represented by suspended particulate matter (SPM), showed a positive relationship with discharges, with greater concentrations in higher flow rates for both periods. The relationship between MPS concentrations and discharges showed differences in the dynamics of remobilization and sedimentation processes influenced by precipitation, saturated soils conditions and hydrological regimes. Specific flows of MPS were approximately 2330.1 and 2121.1 g km-2 h-1, before and after clear cutting, respectively, indicating a major effect of the eucalyptus planted area on mechanical erosion.","PeriodicalId":38374,"journal":{"name":"Revista Ambiente e Agua","volume":"9 1","pages":"499-525"},"PeriodicalIF":0.0,"publicationDate":"2014-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70663346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Quality of meteoric water in the city of Itajubá, Minas Gerais, Brazil 巴西米纳斯吉拉斯州伊塔朱巴<e:1>市大气水的质量

Revista Ambiente e Agua Pub Date : 2014-06-23 DOI: 10.4136/AMBI-AGUA.1329

Herlane Costa Calheiros, Mônica Regina Gomes, P. M. Estrella

引用次数: 1

Ecotoxicological evaluation methodology using seeds germination in nutrient gel as culture medium 以营养凝胶为培养基的种子萌发生态毒理学评价方法

Revista Ambiente e Agua Pub Date : 2014-06-23 DOI: 10.4136/AMBI-AGUA.1337

R. Pelegrini, Ângela Fracon Medina, F. Mendes, Juliane Cristina Molena, Larissa Franciane Greve, Luis Gustavo Silva Salmazo, P. Milani, Priscilla Gaia de Andrade, Renan Brufatto Tognoli

{"title":"Ecotoxicological evaluation methodology using seeds germination in nutrient gel as culture medium","authors":"R. Pelegrini, Ângela Fracon Medina, F. Mendes, Juliane Cristina Molena, Larissa Franciane Greve, Luis Gustavo Silva Salmazo, P. Milani, Priscilla Gaia de Andrade, Renan Brufatto Tognoli","doi":"10.4136/AMBI-AGUA.1337","DOIUrl":"https://doi.org/10.4136/AMBI-AGUA.1337","url":null,"abstract":"Tests in studies aimed at developing ecotoxicological assessments should necessarily be conducted at the same pH value. In order for trials to be trusted, they should be performed in culture medium with identical pH values, even after addition of the stressors. This work aimed to develop a technique of ecotoxicological tests using seeds as test organisms in culture medium using gel as a support layer. The gel preparation was developed by a Dilution Water containing optimal concentrations of nutrients whose pH value had been preset and fixed by a buffer solution containing part of the desired nutrients. For ecotoxicological assessments, we added stressor concentrations in the preparation of dilution water (one for each concentration of the stressor) and we added also Agar (17 g L-1) and heated at 85 °C for complete dissolution. Volumes of solution (20 mL), still hot, were placed in glass containers (250 mL) and allowed to cool to room temperature to form a firm gel layer. About 50 seeds were placed on the top of the gel layer and the container was sealed and placed in a location with ambient light (no direct sunlight). The methodology involves simple techniques and does not require manipulation during embryo development, allowing for effective assessment of ecotoxicological tests with secure analysis of seed germination and development of the essential structures of seedlings with equal pH values, and has very low analytical cost (US $ 0.04).","PeriodicalId":38374,"journal":{"name":"Revista Ambiente e Agua","volume":"9 1","pages":"359-372"},"PeriodicalIF":0.0,"publicationDate":"2014-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4136/AMBI-AGUA.1337","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70663459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Teores de metais pesados em cambissolo irrigado com água residuária doméstica e água de poço 用生活废水和井水灌溉初生土中的重金属含量

Revista Ambiente e Agua Pub Date : 2014-06-22 DOI: 10.4136/AMBI-AGUA.1309

Adriana Mendes Oliveira, Fabrícia Gratyelli Bezerra Costa Fernandes, R. O. Batista, L. D. Souza, M. Gurgel

引用次数: 13