SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Barraginhas: realimentação de aquíferos.

Boutin, Jacqueline; Merlivat, L.; Henocq, C.; Martin, Nicolas; Sallee, Jean-baptiste.

Nine CARbon Interface OCean Atmosphere (CARIOCA) drifters were deployed in the Southern Ocean (south of the subtropical front, STF) between 2001 and 2006. They recorded 65 months of measurements in all seasons between 57 degrees S and 40 degrees S. Hydrological fronts detected by altimetry indicate that one buoy explored the polar zone (PZ) of the Atlantic Ocean and the western Indian Ocean; the remaining buoys explored the northern and southern parts of the subantarctic zone (SAZ) from the mid-Indian Ocean (73 degrees E) to the eastern Pacific Ocean (112 degrees W). The air-sea CO2 fluxes along the buoy trajectories are primarily driven by the spatial variability of the fugacity of CO2 in seawater, fCO(2): in the SAZ, they vary between -1.1 and -4.2 mol...

Tipo: Text

Palavras-chave: Antarctic circumpolar current; Northwestern mediterranean sea; Atlantic sector; Surface water; Gas exchange; Polar front; Temperature; Seawater; Transport.

Ano: 2008

URL: https://archimer.ifremer.fr/doc/00204/31483/29880.pdf

Infoteca-e

BARROS, L. C. de; RIBEIRO, P. E. de A..

As barraginhas são pequenas bacias escavadas no solo em formato de prato, meia-lua e de arco de flecha, com diâmetro médio de 16 m e profundidade média de 1,2 m. São construídas dispersas nas pastagens, lavouras (no final das curvas de nível) e nas margens de estradas, para captar água de enxurradas, controlando a erosão e conservando a água no subsolo. As barraginhas não devem ser construídas em cursos de água perenes, nas áreas de proteção permanente (APPs), no interior das voçorocas e das grotas e em terrenos com inclinação acima de 12%. Um sistema de Barraginhas construídas em uma microbacia promove a elevação do lençol freático e o umedecimento das baixadas, proporcionando segurança hídrica para lavouras, mesmo em regiões semiáridas. Com a água...

Tipo: Artigo de divulgação na mídia (INFOTECA-E)

Palavras-chave: Barraginha; Captação de água de chuva; Barragem; Açude; Construção Rural; Manejo de Água; Manejo do Solo; Water harvesting; Water reservoirs; Surface water; Rain; Rainfed farming.

Ano: 2017

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1099353

Campylobacter armoricus sp. nov., a novel member of the Campylobacter lari group isolated from surface water and stools from humans with enteric infection

Capacity building for participatory irrigation management in Sindh Province of Pakistan.

Boukerb, Amine M.; Penny, Christian; Serghine, Joelle; Walczak, Cécile; Cauchie, Henry-michel; Miller, William G.; Losch, Serge; Ragimbeau, Catherine; Mossong, Joël; Mégraud, Francis; Lehours, Philippe; Bénéjat, Lucie; Gourmelon, Michele.

During a study on the prevalence and diversity of members of the genus Campylobacter in a shellfish-harvesting area and its catchment in Brittany, France, six urease-positive isolates of members of the genus Campylobacter were recovered from surface water samples, as well as three isolates from stools of humans displaying enteric infection in the same period. These strains were initially identified as members of the Campylobacter lari group by MALDI-TOF mass spectrometry and placed into a distinct group in the genus Campylobacter, following atpA gene sequence analysis based on whole-genome sequencing data. This taxonomic position was confirmed by phylogenetic analysis of the 16S rRNA, rpoB and hsp60 (groEL) loci, and an analysis of the core genome that...

Tipo: Text

Palavras-chave: Campylobacter; Novel species; Surface water; Coastal catchment; Human gastroenteritis; C. lari group; Whole genorne sequence.

Ano: 2019

URL: https://archimer.ifremer.fr/doc/00591/70346/69558.pdf

AgEcon

Memon, Yameen; Talpur, Mustafa; Murray-Rust, Hammond.

Tipo: Working or Discussion Paper

Palavras-chave: River basins; Institutions; Organizations; Private sector; Public sector; Local government; Mapping; Water resource management; Water policy; Legislation; Rural women; Constraints; Groundwater; Surface water; Water quality; Water use; Water users; Dams; Reservoirs; Large-scale systems; Irrigation management; Industrialization; Case studies; Operations; Maintenance; Canals; Conflict; Farmer-agency interactions; Policy; Water supply; Rural development; Community/Rural/Urban Development; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.

Ano: 2001

URL: http://purl.umn.edu/92769

Características físico-químicas de las aguas del Paso Drake durante el verano 1988

Allauca, S.; Valencia Trejo, M..

Un análisis de parámetros físicos y químicos se realizó en el Paso Drake en base a datos obtenidos durante el trayecto del BAE ORION hacia y desde la Península Antártica. La investigación efectuada en esta área forma parte de la Primera Expedición Ecuatoriana a la Antártica, realizada durante el verano 1988. Los datos de temperatura medidos con probetas de XBT, proporcionaron una clara visión de la estructura térmica de cada sección hasta los 500 metros. Se determinaron las posiciones de los diferentes Frentes y Zonas tanto por las condiciones subsuperficiales como por sus expresiones superficiales. La presencia de un anillo o masa de agua subsuperficial relativamente fría dentro de la Zona del Frente Polar permite pensar que corresponde a Agua Superficial...

Tipo: Journal Contribution

Palavras-chave: Chemical oceanography; Surface water; Surface temperature; Air temperature; Salinity; Nutrients (mineral); Polar fronts; Chemical oceanography; Surface water; Air temperature; Salinity; Http://aims.fao.org/aos/agrovoc/c_1516; Http://aims.fao.org/aos/agrovoc/c_25317; Http://aims.fao.org/aos/agrovoc/c_230; Http://aims.fao.org/aos/agrovoc/c_6751.

Ano: 1989

URL: http://hdl.handle.net/1834/3874

Chemical composition of phytoplankton from the estuaries of Eastern Amazonia

Acta Amazonica

Vilhena,Maria do Perpetuo Socorro Progene; Costa,Marcondes Lima da; Berrêdo,José Francisco; Paiva,Rosildo Santos; Almeida,Pryscila Denise.

Phytoplankton is important bioindicator of chemical and biological modifications of natural ecosystems. The objective of this study was to determine the total chemical composition of the phytoplankton of the Pará and Mocajuba estuaries on the eastern coast of the Amazon region in the Brazilian state of Pará. The chemical composition of the surface water, bottom sediments (total sample and bioavailable fraction), and the phytoplankton were determined by inductively coupled plasma optical emission spectrometry. Phytoplankton contained high concentrations of Ca, P, Mn, Fe, Zn, Al, Ba, and Pb. The phytoplankton of the Mocajuba estuary is rich in Fe (2,967-84,750 µg g-1), while those from the Pará is rich in Al (1,216-15,389 µgg-1), probably reflecting...

Climatological distributions of pH, pCO(2), total CO2, alkalinity, and CaCO3 saturation in the global surface ocean, and temporal changes at selected locations

Palavras-chave: Sediments; Trace metals; Plankton; Surface water.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000400012

Cost-benefit analysis of abatement measures for nutrient emission from agriculture

Takahashi, Taro; Sutherland, S. C.; Chipman, D. W.; Goddard, J. G.; Ho, Cheng; Newberger, Timothy; Sweeney, Colm; Munro, D. R..

Climatological mean monthly distributions of pH in the total H+ scale, total CO2 concentration (TCO2), and the degree of CaCO3 saturation for the global surface ocean waters (excluding coastal areas) are calculated using a data set for pCO(2), alkalinity and nutrient concentrations in surface waters (depths <50 m), which is built upon the GLODAP, CARINA and LDEO databases. The mutual consistency among these measured parameters is demonstrated using the inorganic carbon chemistry model with the dissociation constants for carbonic acid by Lueker et al. (2000) and for boric acid by Dickson (1990). Linear potential alkalinity-salinity relationships are established for 24 regions of the global ocean. The mean monthly distributions of pH and carbon chemistry...

Tipo: Text

Palavras-chave: Global ocean; Surface water; PH; Carbonate chemistry; Climatology; Seasonal and decadal change.

Ano: 2014

URL: https://archimer.ifremer.fr/doc/00290/40098/38796.pdf

AgEcon

Wustenberghs, H.; Broekx, Steven; Van Hoof, K.; Claeys, Dakerlia; D'Heygere, T.; D'Hooghe, J.; Dessers, R.; Huysmans, T.; Lauwers, Ludwig H.; Meynaerts, E.; Vercaemst, P..

In intensive animal husbandry areas surface water N and P concentrations often remain too high. The Water Framework Directive calls for additional nutrient emission abatement measures. Therefore, costs and benefits for possible agricultural measures in Flanders were first analysed in terms of soil balance surplus. Finally, abatement measures for agriculture, households and industry were set off against each other and ranked according to their cost-efficiency by the Environmental Costing Model. Increased dairy cattle efficiency, winter cover crops and increased pig feed efficiency turn out very cost efficient. Other agricultural measures are less cost efficient than for instance collective treatment for households and industry.

Tipo: Conference Paper or Presentation

Palavras-chave: Nitrogen and phosphorus abatement; Surface water; Cost efficiency; Environmental Economics and Policy; Livestock Production/Industries.

Ano: 2008

URL: http://purl.umn.edu/44245

Cytotoxic and genotoxic potential of surface water from the Pitimbu river, northeastern/RN Brazil

Genet. Mol. Biol.

Egito,Lucila Carmem Monte; Medeiros,Maria das Graças; Medeiros,Silvia Regina Batistuzzo de; Agnez-Lima,Lucymara Fassarella.

In this study, the onion (Allium cepa) root test was used to evaluate the genotoxicity of the Pitimbu River (Natal city, Brazil) surface water. The water was collected at five sampling sites along the river and one sample was obtained after the treatment (flocculation, chlorination and pH correction) of the river water for human consumption. All raw river water samples increased the frequency of chromosomal abnormalities and/or micronuclei and two of the water samples produced alterations in the mitotic index of the root cells. Two of the water samples also altered root growth and two produced morphological modifications in the A. cepa roots. Water collected from a site near an industrial area was the most consistently toxic and genotoxic of the samples....

Distribution of chlorinated pesticides in surface water and fish of El Temsah and Bitter Lakes, Suez Canal

Palavras-chave: Allium cepa; Micronucleus; Cytotoxicity; Genotoxicity; Surface water.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300023

Environmental Impact Assessment of two polluting sources on stream in Nigeria

Said, T.O.; Hamed, M.A..

The potential effect of chlorinated pesticides pollutants carried by El Temsah and Bitter Lakes of the Suez Canal was investigated during four seasons of 2003. The results indicate the presence of total DDTs, total cyclodienes and total Hexachlorocyclohexane (HCHs) in surface water with ranges; 2.76-13.88 ng/l, 3.99-16.39 ng/l, and 0.39-1.25 ng/l, respectively. Total DDTs concentrations were ranged from 161-3100 ng/g (wet weight) with an average of 1087 ng/g (wet weight), while total HCHs concentrations were ranged from 30-1145 ng/g (wet weight) with an average of 316 ng/g (wet weight) recorded in three fish species; Lutjanus sp., R. haffara and S. rivulatus of the investigated area. Concentrations of chlorinated pesticides recorded in both of water and...

Tipo: Journal Contribution

Palavras-chave: Pesticides; Surface water; El Temsah; Bitter lakes; Suez Canal Accumulation Fish meal Wastes Water masses Fish meal Wastes http://aims.fao.org/aos/agrovoc/c_2925 http://aims.fao.org/aos/agrovoc/c_8307.

Ano: 2005

URL: http://hdl.handle.net/1834/1060

CIGR Journal

Akinbile, Christopher Oluwakunmi; Olugbojo, Wasiu; Olubanjo, Obafemi.

The environmental impact of locating two polluting sources of landfill (refuse dump) and petrochemicals on Alaba stream in Akure, Nigeria was assessed. This was due to the dependence of Alaba inhabitants and its environment on the stream for variety of uses. Twenty physio-chemical parameters were analyzed for wet and dry seasons respectively with three sampling points within 5m intervals from one another of the two polluting sources on the stream. The parameters included: colour, odour, taste, pH, temperature, turbidity, alkalinity, conductivity, dissolved oxygen (DO), biochemical oxygen demand (BOD5) and total solids (TS). Others were chloride (CL-), total dissolved solids (TDS), total suspended solids (TSS), lead (Pb), nitrate (NO3), sulphate (SO4-2),...

Environmental Impact Assessment of two polluting sources on stream in Nigeria

Palavras-chave: Water quality; Treatment Pollution; Parameters; Petrochemical; Landfill; Surface water; Akure.

Ano: 2015

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3215

CIGR Journal

Christopher Oluwakunmi Akinbile; FUTA; Wasiu Olugbojo; Federal University of Technology, Akure; Obafemi Olubanjo; Federal University of Technology, Akure.

Palavras-chave: Water quality; Treatment Pollution; Parameters; Petrochemical; Landfill; Surface water; Akure.

Ano: 2015

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3215

Estudio de corrientes marinas en la Bahía Chile (Bahía Discovery)

Estudio hidroquímico en las aguas del Estrecho Bransfield, durante el verano austral 1998

Medina, F..

Velocidades superficiales de las aguas fueron medidas en la Bahía chile en la Isla Greenwich, como parte de la Segunda Expedición Ecuatoriana a la Antártida, durante el verano del hemisferio sur, en 1990. Masas de hielo a la deriva desprendidas desde la costa fueron usadas como trazadores lagrangianos. Son comparadas corrientes superficiales y observaciones de vientos. La circulación superficial es determinada por los vientos cuando la velocidad de estos últimos exceden los 6 m/s. Los valores máximos y la dirección de la deriva superficial dependen exclusivamente del campo de viento prevaleciente. La velocidad de la corriente puede alcanzar valores de hasta 40 cm/s.

Tipo: Journal Contribution

Palavras-chave: Surface water; Ice drift; Surface currents; Surface drifters; Polar waters; Surface circulation; Surface water.

Ano: 1990

URL: http://hdl.handle.net/1834/3727

Freshwater quality of a stream in agricultural area where organic compost from animal and vegetable wastes is used

Burgos, L..

Durante los meses del verano austral (Nov. 1997-feb.1998) se realizó la VII Expedición Ecuatoriana a la Antártida a bordo del B/I ORION del Instituto Oceanográfico de la Armada. del 24 al 27 de enero/98, se realizaron 14 estaciones oceanográficas en el interior del Estrecho Bransfield donde además de varios parámetros físicos, meteorológicos y biológicos se estudiaron parámetros químicos como micronutrientes y oxígeno disuelto hasta una profundidad de 500 m. Se exponen los criterios y resultados obtenido de la distribución superficial y subsuperficial de los nutrientes y oxígeno disueltos. Se describen los diagramas T/S de las masas de aguas identificadas y su composición química. Las aguas superficiales del interior del Estrecho Bransfield se presentaron...

Tipo: Journal Contribution

Palavras-chave: Chemical composition; Dissolved oxygen; Surface water; Ground water; Research vessels; Ground water; Chemical composition; Dissolved oxygen; Surface water.

Ano: 1998

URL: http://hdl.handle.net/1834/3849

Ciência e Agrotecnologia

Saran,Luciana Maria; Meneghine,Aylan Kener; Célico,Amanda Schimidt; Pinheiro,Daniel Guariz; Alves,Lucia Maria Carareto.

ABSTRACT Organic compost from biomass residues constitutes a viable alternative for partial or total replacement of mineral fertilizers for growing vegetables. This study evaluated the effects of compost on the water quality of a stream used mainly for irrigation of agricultural crops cultivated in nearby soil that has been treated with organic compost produced by carcasses, animal and vegetable waste for the last ten years. We sampled water biannually for two years, 2013 and 2014, from five locations along the stream. Physical variables and some chemical variables were analyzed. We also analyzed the total number of coliforms (Escherichia coli). Bacterial populations were compared by carbon substrate consumption. Total phosphorus contents in the samples...

Fytohydrobiologisch onderzoek van oppervlaktewaters in Vlaanderen: 5. De afgesneden Scheldemeanders: het Zonneputje, de Spanjaard, de Van-Looy-put, de Bruwee (bij Gent)

Palavras-chave: EcoPlate; Carcasses and animal waste; Agriculture; Surface water; Composting.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300263

OMA

De Maeseneer, M.; Gogaert, C.; Coppejans, E..

Influence of environmental and anthropogenic factors on the composition, concentration and spatial distribution of microplastics: A case study of the Bay of Brest (Brittany, France)

Palavras-chave: Hydrobiology; Surface water; Belgium.

Ano: 1989

URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7695