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Registros recuperados: 53
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A handbook on the rainfall climatology of West Africa: data for selected locations Open Agri
S.J..
Palavras-chave: Latitude; Evapotranspiration; Microclimate; Agroclimatology; Location; Precipitation; Climatology; Water balance; Plant production; Electrophoresis.
Ano: 1980 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3990
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Agroclimatological information about the experimental field of the SHIFT-area, ENV 23, 42, 45, 54. Infoteca-e
CORREIA, F. W. S.; LIEBEREI, R..
Throughout the entire experimental phase of the SHIFT-colaboration of Embrapa Amazonia Ocidental (Manaus-AM) and the University of Hamburg, agrometeorological data have been monitored by a Stationary Climatological Station situated directly at the experimental site (3° 8' S, 59° 52' W). These data have been compared with the ten-year means of the Embrapa Agrometeorological Station (Manaus-AM), in a latitude of 03° 08' 05" S, 60° 01' W in an altitude of 44m above sea level. The climate of the experimental field is classified as AF according to Koppen. The years 1996 and 1997 reveal climati characteristics of "El Nino" years and, thus, they allow to develop an excellent idea about short time local changes of climatic factors compared to a ten-year means.
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropicl rain forests; Precipitation; Atmosphere; Radiations; Winds; Agricultura; Ar; Atmosfera; Clima; Evaporação; Floresta Tropical Úmida; Meteorologia; Precipitação Pluvial; Radiação; Temperatura; Umidade Relativa; Velocidade; Vento; Agriculture; Agroforestry; Climate; Evaporation; Meteorology; Multiple cropping; Rain; Relative humidity; Temperature; Velocity.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668394
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Availability of soil water and water use by corn, sorghum, soybean and mungbeans Thai Agricultural
Seri Sukkij; Prasong Banthao; Somporn Isranurak.
10 tables
Palavras-chave: Corn; Maize; Sorghum; Soybeans; Mungbeans; Soil water; Water use; Precipitation; Yields; ข้าวโพด; ข้าวฟ่าง; น้ำในดิน; การใช้น้ำ; ถั่วเหลือง; ถั่วเขียว.
Ano: 1977 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3928
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Can Logging in Equatorial Africa Affect Adjacent Parks? Ecology and Society
Baidya Roy, Somnath; Princeton University; sbroy@duke.edu; Walsh, Peter D; Princeton University; walsh@eva.mpg.de; Lichstein, Jeremy W; Princeton University; jwl@princeton.edu.
Tropical deforestation can cause fundamental regional-scale shifts in vegetation structure and diversity. This is particularly true in Africa. Although national parks are being established to protect areas from deforestation and to conserve biodiversity, these parks are not immune to disturbances outside their boundaries. We used regional-scale atmospheric simulation experiments to investigate how deforestation in timber concessions might affect precipitation inside adjacent, undisturbed national parks in the equatorial African countries of Gabon and the Republic of Congo. The experiments revealed a complex response. Some parks showed rainfall reduced as much as 15%, while others showed slight increases. Rainfall inside parks was particularly sensitive to...
Tipo: Peer-Reviewed Reports Palavras-chave: Deforestation; Logging; Precipitation; Climate change; Africa; Tropics; National park.
Ano: 2005
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Chuvas intensas no estado de Mato Grosso. Infoteca-e
FIETZ, C. R.; COMUNELLO, E.; CREMON, C.; DALLACORT, R.; PEREIRA, S. B..
bitstream/item/53790/1/DOC2011104.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Precipitação; Distribuição Gumbel; Rainfall; Precipitation; Gumbel distribution.; Chuva..
Ano: 2011 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/915074
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Chuvas intensas no Estado de Mato Grosso. Infoteca-e
FIETZ, C. R.; COMUNELLO, E.; CREMON, C.; DALLACORT, R.; PEREIRA, S. B..
O objetivo deste trabalho foi determinar a probabilidade de ocorrência de chuvas intensas no Estado de Mato Grosso. Séries com os valores máximos anuais da precipitação de um dia de 151 postos pluviométricos de Mato Grosso foram ajustadas à Distribuição de Gumbel. Os parâmetros da distribuição foram estimados pelo método de máxima verossimilhança. Houve ajuste de todas as séries de intensidade máxima anual à distribuição Gumbel, de acordo com o teste Kolmogorov-Smirnov. Através das distribuições ajustadas foram calculados os valores de precipitação máxima de 1 dia para períodos de retorno de 2, 3, 4, 5, 10, 15, 20 e 50 anos. Utilizando o método de desagregação de chuvas, estimou-se a precipitação máxima com duração de 5, 10, 15, 20, 25, 30 minutos e 1, 6,...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Probabilidade; Mato Grosso; Intense rainfall; Precipitation; Gumbel distribution.; Chuva..
Ano: 2010 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/866618
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Climate change impacts on hydrology and water resources of the Upper Blue Nile River Basin, Ethiopia AgEcon
Kim, Ungtae; Kaluarachchi, Jagath J.; Smakhtin, Vladimir U..
The report evaluates the impacts of climate change on the hydrological regime and water resources of the Blue Nile River Basin in Ethiopia. It starts from the construction of the climate change scenarios based on the outcomes of several general circulation models (GCMs), uses a simple hydrological model to convert theses scenarios into runoff, and examines the impacts by means of a set of indices. The results, however uncertain with existing accuracy of climate models, suggest that the region is likely to have the future potential to produce hydropower, increase flow duration, and increase water storage capacity without affecting outflows to the riparian countries in the 2050s.
Tipo: Report Palavras-chave: Climate change; Hydrology; River basins; Runoff; Precipitation; Models; Dams; Operating policies; Water power; Drought; Analysis; Africa; Ethiopia; Egypt; Sudan; Upper Blue Nile River Basin; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008 URL: http://purl.umn.edu/53025
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Climate prediction for sustainable production of rainfed groundnuts in sat: crop establishment risks in the Anantapur region Open Agri
S.M..
Palavras-chave: Groundnuts; Sowing date; Precipitation; Products; Cropping systems; Agroclimatic zones; Weather data; Soil water content; Yields; Crops.
Ano: 1999 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4214
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Climatic effects on sugarcane ripening under the influence of cultivars and crop age Scientia Agricola
Cardozo,Nilceu Piffer; Sentelhas,Paulo Cesar.
The lack of information about the effects of cultivars, crop age and climate on the sugarcane (Saccharum ssp.) crop yield and quality has been the primary factor impacting the sugar-ethanol sector in Brazil. One of the processes about which we do not have a satisfactory understanding is sugarcane ripening and the effects of cultivars, crop age and climate on that. Sugarcane ripening is the process of sucrose accumulation in stalks, which is heavily influenced by several factors, mainly by climatic conditions such as air temperature and water deficits. Because it is a complex process, studies of the variables involved in sugarcane ripening can provide important information, resulting in a better use of commercial cultivars, bringing advantages to growers,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp; Air temperature; Precipitation; Water deficit; Sucrose.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000600011
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COMPOSITION, TROPHIC STRUCTURE AND ACTIVITY PATTERNS OF THE UNDERSTORY BATS OF THE BITACO FOREST RESERVE Acta biol.Colomb.
FERRO MUÑOZ,Natalia; GIRALDO,Alan; MURILLO GARCÍA,Oscar Enrique.
ABSTRACT The present study describes composition and trophic structure, and assesses the effect of environmental temperature and rainfall on the pattern of nocturnal activity of understory bats in an Andean forest, in the first half of the night. Seven sampling events were conducted, lasting six nights each one. Ten mist nets were used to capture bats, which were checked every hour between 18:00 and 00:00 hours. Bat species, sex and capture time were registered. In addition, environmental temperature and rainfall were also recorded during sampling. The bat assemblage of the understory of the study area was represented mostly by frugivore species, within this guild there was a lower richness of nomadic than sedentary species. For the first half of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental temperature; Precipitation; Trophic levels.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2018000200170
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CORRELATION AMONG DAMAGES CAUSED BY YELLOW BEETLE, CLIMATOLOGICAL ELEMENTS AND PRODUCTION OF GUAVA ACCESSES GROWN IN ORGANIC SYSTEM Rev. Bras. Frutic.
GALLI,JULIANA ALTAFIN; MICHELOTTO,MARCOS DONISETI; FISCHER,IVAN HERMAN; SOARES,MARIA BEATRIZ BERNARDES; MARTINS,ANTÔNIO LUCIO MELLO.
ABSTRACT The objective of this research was evaluate the damage caused by the yellow beetle on 85 guava accessions and correlations of the damage with the climatological elements and the production of fruit in an orchard of guava conducted in organic system. Ten leaves by access were analyzed containing the injury of insect attack. Each leaf had its foliar area measured by leaf area meter and, after obtaining the total area, the leaf was covered with duct tape, and measure again. The averages were compared by Scott-Knott test at 5% probability. The 15 accessions with highest average damage had the data submitted to the correlation with the minimum and maximum temperature, precipitation and relative humidity. The production was obtained by the number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Psidium guajava; Costalimaita ferruginea; Temperature; Precipitation; Relative humidity.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300402
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Dendrochronology of species from Brazilian Araucaria Forest, Candoi, PR PFB - Pesquisa Florestal Brasileira
Mattos, Patricia Póvoa de; Santos, Andreia Taborda dos; Oliveira, Yeda Maria Malheiros de; Rosot, Maria Augusta Doetzer.
In the present work the dendrochronological potential of six species of the Araucaria Forest is analyzed. The trunks of 20 trees were collected in Candoi, State of Parana, Brazil, from an area that belongs toELEJOR, Centrais Elétricas do Rio Jordão, for the following species: Araucaria angustifolia, Clethra scabra, Cedrela lilloi, Ocotea porosa, Podocarpus lambertii and Sebastiania commersoniana (3 to 6, from each species). The trunks were sawed, and at breast height a sample was taken from the center of the board, from bark to bark, crossing the pith, for macroscopic analysis. These samples were dried and polished, making possible the recognition and measurement of growth rings The historical climatic data series were provided by SIMEPAR, the State...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth rings; Precipitation; Temperature; Forest dynamics; Atlantic Rain Forest Anéis de crescimento; Precipitação pluviométrica; Temperatura; Dinâmica de florestas; Mata Atlântica.
Ano: 2010 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/141
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Development of an annual drought classification system based on drought severity indexes Anais da ABC (AABC)
LIMA,RAFAEL P.C.; SILVA,DEMETRIUS D. DA; MOREIRA,MICHEL C.; PASSOS,JÉSSICA B.M.C.; COELHO,CLÍVIA D.; ELESBON,ABRAHÃO A.A..
Abstract: In order to characterize the occurrence and intensity of droughts in the Doce River Basin, as well as to develop a system for its classification, four different drought indexes were evaluated: Percent of Normal Precipitation (PNP), Deciles Method (DM), Rainfall Anomaly Index (RAI) and Standardized Precipitation Index (SPI). The indices were calculated annually, based on precipitation data from 89 rainfall stations of the Brazilian National Water Agency (ANA). Nine analysis units (AUs) were determined in the basin and the Thiessen Polygons method was used to obtain the average precipitation in the respective drainage areas. The indices were calculated for each AU and then related to the drought intensity classes. An overall classification of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Climatic condition; Doce river; Precipitation; Rainfall season; River basin.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100852
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Ecological niche differentiation between Acanthodactylus micropholis and A. khamirensis (Sauria: Lacertidae) in southern Iran Rev. Bras. Zool.
Heidari,Nastaran.
ABSTRACT Acanthodactylus micropholis Heidari, Rastegar-Pouyani, Rastegar-Pouyani & Rajabizadeh, 2013 and A. khamirensis Blanford, 1874 are genetically and morphologically distinct, but their ecological differentiation has not previously been evaluated. The ecological niche models of these two sister species Acanthodactylus were reconstructed using climate and geographical data. Species distribution modeling for A. micropholis and A. khamirensis was used to make predictions and showed that most parts of southern and southeastern Iran are suitable for the distribution of both species. Habitat suitability was mostly dependent upon minimum temperature of the coldest month and seasonal precipitation for A. micropholis and A. khamirensis, respectively. Niche...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecological species concept; Fringed-toed lizard; Iranian Plateau; Precipitation; Temperature.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100308
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Ecology of small terrestrial mammals in an isolated Cerrado patch, eastern Paraguay: communities, species, and effects of enso, precipitation, and fire Mastozool. neotrop.
Owen,Robert D.
The Cerrado extends as islands or patches into the Upper Paraná Atlantic Forest (UPAF) of Brazil and Paraguay. This study evaluates the temporal dynamics of a marginal terrestrial small-mammal community in an isolated Cerrado patch within the UPAF, at the southwestern distributional limit of the Cerrado and near the western limit of the UPAF in eastern Paraguay. Because the faunal members of marginal communities are living near the limits of their capabilities in terms of their abiotic and biotic environment, the communities in such areas are likely to be a mixture of Cerrado and UPAF species, sensitive to extrinsic variables such as climate change and anthropogenic changes in land use. In this 23-month study, temporal dynamics of a terrestrial...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cricetidae; Didelphidae; Echimyidae; Fire; ENSO; Precipitation.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832013000100007
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Efeitos da ocupação do solo, do uso da água e da idade das albufeiras nos parâmetros ambientais e na estrutura das comunidades zooplanctónicas IPB - Escola Superior Agrária
Geraldes, Ana Maria.
O presente trabalho decorreu em três albufeiras de idades distintas e sujeitas a diferentes tipos de perturbações de origem antropogénica. Estes sistemas aquáticos localizam-se na parte portuguesa da Bacia Hidrográfica do Rio Douro, na região de Trás-os-Montes. A albufeira da Serra Serrada foi criada em 1995 com o objectivo de abastecer de água a cidade de Bragança, actualmente com 34.750 habitantes. Como consequência do intenso consumo de água ocorrem flutuações de grande amplitude no seu nível. Por outro lado, na bacia de drenagem desta albufeira a pastorícia é particularmente intensa durante o Verão. Devido a esta actividade ocorrem nesta área, fogos frequentes que são induzidos pelos pastores com o objectivo de obterem melhores pastagens. A albufeira...
Tipo: Book Palavras-chave: Albufeiras; Estado trófico; Uso do solo; Idade das albufeiras; Qualidade da água; Flutuações no nível da água; Variáveis ambientais; Comunidades fito e zooplactónicas; Precipitação; Macrófitos; Actividade da fosfatase alcalina; Regeneração do ortofosfato; Nutrientes; Reservoirs; Trophic state; Nutrients; Land use; Reservoir age; Water quality; Water level fluctuation; Environmental variables; Phytoplankton and zooplankton assemblages; Precipitation; Macrophytes; Kaline phosphatase activity; Orthophosphate regeneration.
Ano: 2004 URL: http://hdl.handle.net/10198/770
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Erosive rainfall in Rio do Peixe Valley in Santa Catarina, Brazil: Part I - Determination of the erosivity index AGRIAMBI
Back,Álvaro J.; Pola,Augusto C.; Ladwig,Nilzo I.; Schwalm,Hugo.
ABSTRACT This study aimed to determine the rainfall erosivity index in the Valley of Rio do Peixe, in the state of Santa Catarina, Brazil. The data series of three rain gauge stations in the cities of Campos Novos, Videira, and Caçador were used to determine the rainfall erosivity based on the EI30 index and to adjust the equations in order to estimate the EI30 value from the rainfall coefficient. On average, it was observed that erosive rains represents 81.4-88.5% of the annual precipitation. The adjusted equations can be used to estimate rainfall erosivity in locations with only rainfall data. The regional equation specified for the erosivity estimation is EI30 = 74.23 Rc0.8087. The R factor is 8,704.8; 7,340.8; and 6,387.1 MJ mm ha-1 h-1 year-1 for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil loss; Soil conservation; Water erosion; Precipitation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001100774
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Erosive rainfall in the Rio do Peixe Valley: Part III - Risk of extreme events AGRIAMBI
Back,Álvaro J.; Pola,Augusto C.; Ladwig,Nilzo I.; Schwalm,Hugo.
ABSTRACT Understanding the risks of extreme events related to soil erosion is important for adequate dimensioning of erosion and runoff control structures. The objective of this study was to determine the rainfall erosivity with different return periods for the Valley of the Rio do Peixe in Santa Catarina state, Brazil. Daily pluviographic data series from 1984 to 2014 from the Campos Novos, and Videira meteorological stations and from 1986 to 2014 from the Caçador station were used. The data series of maximum annual rainfall intensity in 30 min, maximum annual erosive rainfall, and total annual erosivity were analyzed for each station. The Gumbel-Chow distributions were adjusted and their adhesions were evaluated by the Kolmogorov-Smirnov test at a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil conservation; Water erosion; Precipitation; Probability.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100063
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Estudio comparativo de tres épocas del año en características químicas, plantas y organismos de suelo contaminado con petróleo en La Venta, Tabasco, México. Colegio de Postgraduados
Dorantes Avelino, Rodrigo.
En esta investigación el objetivo fue evaluar las propiedades físicas, químicas y biológicas en un suelo Agrícola y Pecuario para un día específico en tres épocas del año, así como el efecto de los hidrocarburos del petróleo y acumulación de precipitación en el ejido José Narciso Rovirosa, Huimanguillo, Tabasco. El sitio seleccionado es un área de 44,321.199 m2 ubicada al sureste del Complejo Procesador de Gas La Venta, el suelo es receptor de petróleo crudo desde hace 20 años y fue descontaminado en abril 2002. Se establecieron (de agosto 2009 a abril 2010) nueve puntos (2x2 m) experimentales distribuidos completamente al azar. Se realizaron tres muestreos (30 de septiembre del 2009, 30 de enero y 30 de abril del 2010). Se determinó; la acumulación de...
Palavras-chave: Bacterias; Biomasa aérea; Hongos; Hidrocarburos; Precipitación; Bacteria; Biomass; Fungi; Hydrocarbons; Precipitation; Maestría; Producción Agroalimentaria en el Trópico.
Ano: 2010 URL: http://hdl.handle.net/10521/240
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Estudio comparativo de tres épocas del año en características químicas, plantas y organismos de suelo contaminado con petróleo en La Venta, Tabasco, México. Colegio de Postgraduados
Dorantes Avelino, Rodrigo.
En esta investigación el objetivo fue evaluar las propiedades físicas, químicas y biológicas en un suelo Agrícola y Pecuario para un día específico en tres épocas del año, así como el efecto de los hidrocarburos del petróleo y acumulación de precipitación en el ejido José Narciso Rovirosa, Huimanguillo, Tabasco. El sitio seleccionado es un área de 44,321.199 m2 ubicada al sureste del Complejo Procesador de Gas La Venta, el suelo es receptor de petróleo crudo desde hace 20 años y fue descontaminado en abril 2002. Se establecieron (de agosto 2009 a abril 2010) nueve puntos (2x2 m) experimentales distribuidos completamente al azar. Se realizaron tres muestreos (30 de septiembre del 2009, 30 de enero y 30 de abril del 2010). Se determinó; la acumulación de...
Palavras-chave: Bacterias; Biomasa aérea; Hongos; Hidrocarburos; Precipitación; Bacteria; Biomass; Fungi; Hydrocarbons; Precipitation; Maestría; Producción Agroalimentaria en el Trópico.
Ano: 2010 URL: http://hdl.handle.net/10521/240
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