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| Registros recuperados: 29 | |
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| Moya-Elizondo,Ernesto A. |
| E.A. Moya-Elizondo. 2013. Fusarium crown rot disease: biology, interactions, management and function as a possible sensor of global climate change. Cien. Inv. Agr. 40(2):235-252. Wheat crops are commonly affected by the dryland root rot complex (DLRRC) under dry and semiarid conditions. This complex is associated with seedling blight, and rotting of roots, crowns and stems of wheat plants. Several pathogens are associated with this complex, but Fusarium crown rot disease (FCR) is the most common and is of worldwide importance. Increased drought frequency and changes in rainfall regimes associated with global climate change may increase the prevalence of this complex of diseases, especially of FCR, in wheat crop areas. This review discusses the... |
| Tipo: Journal article |
Palavras-chave: Fusarium crown rot; Wheat; Climatic change. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200001 |
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| Sierro, Fj; Hodell, Da; Curtis, Jh; Flores, Ja; Reguera, I; Colmenero-hidalgo, E; Barcena, Ma; Grimalt, Jo; Cacho, I; Frigola, J; Canals, M. |
| Down-core samples of planktonic and benthic foraminifera were analyzed for oxygen and carbon isotopes in International Marine Past Global Changes Study (IMAGES) core MD99-2343 in order to study the interactions between climate change in the Northern Hemisphere and the western Mediterranean thermohaline circulation at times of Heinrich events (HE). Our results confirm the antiphase correlation between enhanced North Atlantic Deep Water formation and low ventilation in the Mediterranean. However, this study reveals that this antiphase relationship in deepwater formation between the North Atlantic and Mediterranean was interrupted during times of HE when the injection of large volumes of water from melting icebergs reached the entrance to the Mediterranean.... |
| Tipo: Text |
Palavras-chave: Climatic change; Heinrich events; Mediterranean Sea; Carbon and oxygen isotopes; Thermohaline circulation; Pleistocene. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00232/34354/32759.pdf |
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| Aoki, I; Komatsu, T. |
| This paper examines the use of a neural network to analyse and predict the winter catch, in the Joban-Boso Seas off the Pacific coast of central Japan, of young Japanese sardine (Sardinops melanostictus) representing the index of recruits in the sardine stock. The supervised learning paradigm, a three-layer network and a back-propagation algorithm were employed in constructing the neural net. A number of biological, hydrographic and climatic factors constituted an input vector, the output being the catch of young sardine. The association of sardine abundance with environmental factors was quantified in the form of the trained neural network, which indicated important associations with the Southern Oscillation Index, with patterns of the Kuroshio and the... |
| Tipo: Text |
Palavras-chave: Neural network; Japanese sardine; Recruit; Climatic change; Kuroshio-Oyashio. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20436/18103.pdf |
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| Thiaw, Modou; Auger, Pierre-amael; Ngom, Fambaye; Brochier, Timothee; Faye, Saliou; Diankha, Ousmane; Brehmer, Patrice. |
| The objective of this study was to assess the effect of environmental variations on the abundance of Sardinella aurita and Sardinella maderensis in Senegalese waters in the upwelling system. Monthly data indicating the abundance of sardinella were first estimated from commercial statistics, using Generalized Linear Model from 1966 to 2011. Abundance indices (AIs) were then compared with environmental indices, at the local scale, a Coastal Upwelling Index (CUI) and a coastal Sea Surface Temperature (SST) index, and on a large scale, the North Atlantic Oscillation (NAO), the Atlantic Multidecadal Oscillation (AMO) and the Multivariate El Nino Southern Oscillation Index (MEI), using correlations and times series analyses. The results showed that the abundance... |
| Tipo: Text |
Palavras-chave: Climatic change; Oceanography; Sardinella aurita; Sardinella maderensis; Small pelagic; Small-scale fisheries. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00611/72307/71213.pdf |
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| Saenz-romero, Cuauhtemoc; Lamy, Jean-baptiste; Ducousso, Alexis; Musch, Brigitte; Ehrenmann, Francois; Delzon, Sylvain; Cavers, Stephen; Chalupka, Wladyslaw; Dagdas, Said; Hansen, Jon Kehlet; Lee, Steve J.; Liesebach, Mirko; Rau, Hans-martin; Psomas, Achilleas; Schneck, Volker; Steiner, Wilfried; Zimmermann, Niklaus E.; Kremer, Antoine. |
| How temperate forests will respond to climate change is uncertain; projections range from severe decline to increased growth. We conducted field tests of sessile oak (Quercus petraea), a widespread keystone European forest tree species, including more than 150,000 trees sourced from 116 geographically diverse populations. The tests were planted on 23 field sites in six European countries, in order to expose them to a wide range of climates, including sites reflecting future warmer and drier climates. By assessing tree height and survival, our objectives were twofold: (1) to identify the source of differential population responses to climate (genetic differentiation due to past divergent climatic selection versus plastic responses to ongoing climate... |
| Tipo: Text |
Palavras-chave: Climatic change; Climatic transfer distance; Mixed model; Quercus petraea; Survival; Tree growth. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00358/46967/46882.pdf |
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| Morais, Vinícius Augusto; Silva, Carlos Alberto; Scolforo, José Roberto Soares; Mello, José Márcio; Araújo, Emanuel José Gomes de; Assis, Edson Aquiles de. |
| The total soil organic carbon (C) is regulated by climatic factors, altitude, texture and soil depth. Due to higher storage in surface, it is common to observe the exponential model to adjust the C content in the soil profile. This study was carried out in order to study the influence of climatic factors, altitude and soil depth on the vertical distribution (0-100 cm) of C in five Cerrado fragments located in the municipalities of Januária and Bonito de Minas, Minas Gerais State, Brazil. Soil samples were collected in the following layers: 0-10, 10-20, 20-40, 40-60 and 60-100 cm. The maximum and minimum levels of C varied depending on the sampling site, fragment and soil layer sampled. Larger variations in the levels of C were noted for the 0-10 cm layer,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic change; Root; Litter; Total organic carbon Recursos Florestais; Engenharia Florestal; Manejo Florestal Mudanças climáticas; Raiz; Serrapilheira; Carbono orgânico total. |
| Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/507 |
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| Mekhora, Thamrong. |
| This second phase of the study is expected to produce actual and accurate information concerning socio-economic information and measures to cope with the El Nino effects at the farm level. Evidence of abnormal weather was apparent in Thailand in 2001 when the rain was less than the previous years' and the high temperatures were from January to March 2002. However, the rain came early in May 2002. Thus, the period of 2001 is suitable to represent an abnormal year for the study of the second phase of the project. The objectives of the second phase are to analyze and evaluate drought impacts at farm-household level, farmer's responses and government measures to overcome the problems. The research was conducted in two different provinces, namely Lop Buri in... |
| Tipo: Report |
Palavras-chave: Drought; Climatic change; Agriculture; Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/32672 |
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| Irawan, Bambang. |
| The El Nino events of 1982 and 1997 are the biggest ones in history. Both El Nino events resulted in decreased rainfall, particularly during the dry season of May-August. The 1997 El Nino caused a higher decrease in rainfall than the 1982 one. Consistently, in Java and Sulawesi the decrease in rainfall was higher compared to the national average in both 1997 and 1982. Since Java and South Sulawesi are major food producers (about 65 per cent of national food crop production), El Nino events could disturb national food security. In Kalimantan, the decrease in rainfall was relatively high during the 1997 El Nino, but quite low during 1982. On the contrary, Sumatera, Bali and Nusa Tenggara experienced a decrease in rainfall which was quite high in 1982 but... |
| Tipo: Report |
Palavras-chave: Climatic change; Food crops; Agriculture; Crop Production/Industries; Environmental Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/32664 |
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| Bang, Sergie K.; Poloma, Spencer; Allen, Bryant J.. |
| In 1997, a drought associated with a severe ENSO (El Nino-Southern Oscillation) event was the cause of significant disruptions to village food and water supplies in PNG, as well as the failure of the water supply to towns and smaller service centres, mine closures and disruption to the supply of electricity. There were severe shortages of food and water, with garden produce declining by 80 per cent. Up to 40 per cent of the rural population (1.2 million people) were without locally available food by the end of 1997. The health of rural people declined and in many isolated places the mortality rate increased. Many thousands of people migrated to towns and cities to live with wage-earning relatives. A traditional social support system (known as the wantok... |
| Tipo: Report |
Palavras-chave: Climatic change; Food production; Drought; Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/32726 |
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| Monsalud, Florentino C.; Montesur, Jaime G.; Abucay, Edwin R.. |
| This study focuses on the impacts of El Nino induced abnormal weather on agricultural productivity in rainfed areas and on the coping mechanisms and risk management strategies from the national down to the household level. This study was conducted to: a) Determine the impacts of El Nino-related abnormal weather changes on production of selected crops; b) Document and analyze the existing conditions on rainfed farming systems, resources, infrastructure, institutions, and other socio-economic characteristics associated with El Nino vulnerable areas; c) Review existing policies related to El Nino; d) Draw up recommendations for the stabilization of rainfed agricultural production. The major sources of data were reports of studies related to El Nino, on-farm... |
| Tipo: Report |
Palavras-chave: Climatic change; Plant production; Rain fed farming; Crop Production/Industries; Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/32690 |
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| Suwanabatr, Bhibhatra; Mekhora, Thamrong. |
| This study focused on the impacts on vulnerable areas in five provinces and five regions in Thailand. The findings indicated that events caused by El Nino induced weather changes had some impacts on the stabilization of upland agriculture in those vulnerable areas. Broadly speaking, severe drought and a long period of water shortages were experienced by some of the vulnerable areas in Northeast and Central Thailand. Some areas experienced a decrease of corn yield while others experienced complete failure of field corn, sorghum, sugarcane, peanut and mungbean. The impacts of El Nino on the social and economic conditions of Thailand's vulnerable areas were an occurrence of labour mobilization, and weaknesses in purchasing power and loan repayment abilities... |
| Tipo: Report |
Palavras-chave: Climatic change; Upland areas; Environmental policies; Environmental Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/32670 |
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| Registros recuperados: 29 | |
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