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Registros recuperados: 33
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Adapting agriculture to climate change AgEcon
Iglesias, Ana; Quiroga, Sonia; Diz, Agustin; Garrote, Luis.
We evaluate the potential impacts and measure the potential limits of adaptation of agriculture to climate change. Pressures on land and water resources are expected to intensify existing risks in low latitude areas – e.g., South-East Asia deltas – and in regions with current water scarcity – e.g. Mediterranean, and create new opportunities in some northern temperate areas – e.g., Northern Russia, Northern Europe. The need to respond to these risks and opportunities is addressed by evaluating the costs and benefits of a number of technical and policy actions. The discussion aims to assist stakeholders facing the adaptation challenge and develop measures to reduce the vulnerability of the sector to climate change.
Tipo: Article Palavras-chave: Adaptation; Climatic change; Global production; Mitigation; Agricultural and Food Policy; Crop Production/Industries; Land Economics/Use; Resource /Energy Economics and Policy; C51; C53; Q17; Q18.
Ano: 2011 URL: http://purl.umn.edu/120200
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Adaptive and plastic responses of Quercus petraea populations to climate across Europe ArchiMer
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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Agua Intermedia Antártica: el pulmón del océano Pacífico OceanDocs
Carrasco, Cristina; Farías, Laura.
El cambio climático se “sumerge” al interior del océano a través de la formación de masas de agua en distintas regiones. Tal es el caso del Agua Intermedia Antártica (AAIW), la masa de agua más extendida del océano global, presente a profundidades intermedias en todas las cuencas oceánicas. El AAIW, formada al norte del Frente Polar Antártico y en las costas de Chile, estaría jugando un rol importante en la distribución de calor y sal, pero en especial de gases como el oxígeno, dióxido de carbono y óxido nitroso, por mencionar algunos
Tipo: Journal Contribution Palavras-chave: Climatic changes; Antarctic waters; Antarctic zone; Climatic change; Antarctic climate.
Ano: 2009 URL: http://hdl.handle.net/1834/4493
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Alternative Hedging Strategies in Maize Production to Cope with Climate Variability and Change AgEcon
Fuhrer, Jurg; Beniston, Martin; Calanca, Pierluigi; Torriani, Daniele Simone.
Climate change with increasing climate variability is likely to alter risks in agricultural production. The effectiveness of using weather derivatives to hedge against drought risks for rain-fed grain maize production was investigated for current (1981-2003) and future (2070- 2100) climates in Switzerland. The climate change scenario was extrapolated from results of a regional climate model (HIRHAM4) based on the IPCC A2 emission scenario. In addition, a sensitivity analysis was performed by varying the mean and variance of the initial probability space for the seasonal precipitation sum. Profits and risks with and without hedging were compared using the analogy of the value-at-risk measure (VaR), i.e., a quantile-based measure of risk. A Monte Carlo chain...
Tipo: Conference Paper or Presentation Palavras-chave: Climatic change; Climate risks; Drought; Maize production; Weather derivatives; Hedging; Crop Production/Industries; Environmental Economics and Policy; Risk and Uncertainty.
Ano: 2007 URL: http://purl.umn.edu/9275
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Analysis and prediction of the fluctuation of sardine abundance using a neural network ArchiMer
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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Cenários de mudanças climáticas para o semiárido brasileiro. Repositório Alice
ANGELOTTI, F.; PETRERE, V. G.; TEIXEIRA, A. H. de C.; SA, I. B.; MOURA, M. S. B. de.
Monitoramento das condições climáticas; Tendências climáticas no semiárido brasileiro; Radiação solar global e insolação; Temperatura do ar; Umidade relativa do ar e velocidade do vento; Precipitação, evaporação e deficiência hídrica; Cenários climáticos futuros; Cenários agrícolas futuros; Ações de mitigação e adaptação às mudanças climáticas na região semiárida; Medidas de adaptação.
Tipo: Parte de livro Palavras-chave: Mudanças climáticas; Mitigação; Bioma caatinga; Cenário climático; Convivência com a seca; Cenário agrícola; Região semiárida; Sequestro de carbono; Agropecuária; Agricultural water; Climatic change; Soil organic.; Clima; Chuva; Impacto social; Caatinga; Temperatura; Dióxido de Carbono; Impacto Ambiental; Meio Ambiente.; Drought; Evapotranspiration; Land use..
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/861948
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Como as mudanças climáticas poderão causar impactos na patologia de sementes e mudas de espécies nativas da Caatinga? Repositório Alice
ANGELOTTI, F..
O clima e a ocorrência de doenças estão relacionados diretamente, assim, as mudanças climáticas, por meio do aumento da temperatura, da ocorrência de secas e do aumento da concentração de dióxido de carbono poderão causar impactos diretos nos ecossistemas naturais. Diversos fungos fitopatogênicos têm sido identificados causando deterioração de sementes, morte em pré-emergência, lesões em plântulas e tombamentos de mudas de espécies nativas da Caatinga. Entretanto, não foi verificada na literatura trabalhos que identifiquem os impactos das mudanças climáticas na ocorrência e distribuição destes agentes fitopatogênicos. Estudos futuros deverão abordar o efeito do aumento da temperatura e do dióxido de carbono na incidência destes micro-organismos, a fim de...
Tipo: Artigo de periódico Palavras-chave: Doenças florestais; Espécie da Caatinga; Mudanças Climáticas; Planta nativa; Climatic change; Seed.; Disease; Semente; Caatinga; Doença; Dióxido de carbono; Clima; Fungo; Muda; Temperatura..
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/997924
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Coping against El Nino for Stabilizing Rainfed Agriculture: Lessons from Asia and the Pacific: Proceedings of a Joint Workshop Held in Cebu, the Philippines, September17-19, 2002 AgEcon
Opening Message, by Leonard Q. Montemayor Opening Address, by Sang Mu Lee Opening Address, by Eiji Ueno Opening Address, by Takahiro Inoue Opening Address, by Nobuyoshi Maeno Rationale, Objectives, and Benefits of the Joint Workshop, by Rogelio N. Concepcion and Shigeki Yokoyama Assessing the Impacts of Climate Variability on Crop Production, and Developing Coping Strategies in Rainfed Agriculture, by Felino P. Lansigan Seasonal Climate Forecasts and Decision Support Systems for Drought Prone Agriculture: A Case Study Based on the Development and Application of the Rainman Climate Analysis Software, by Jeff F. Clewett Early Warning System against Cool Summer Damage: Case of Northern Japan, by Masaharu Yajima ELNINO Project Regional Study Outline...
Tipo: Report Palavras-chave: Climatic change; Weather hazards; Disasters; Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2003 URL: http://purl.umn.edu/32733
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Coping Strategies Against El Nino: The Case of Selected Communities in Talugtug, Nueva Ecija, Philippines AgEcon
Monsalud, Florentino C.; Montesur, Jaime G.; Abucay, Edwin R..
The occurrence of El Nino causes tremendous havoc to economies. Recognizing this problem, the Philippine government has been introducing measures to mitigate the impact of the El Nino phenomenon. One of the measures to lessen the vulnerability of the farmers on El Nino related risk is the Small Water Impounding Projects (SWIPs). Furthermore, farmers have their own initiatives and coping mechanisms to mitigate the effects of El Nino. This research was undertaken to document the coping mechanisms, which would be useful in policy formulation. This study aims to: a) Determine the impacts of El Nino-related abnormal weather changes on agricultural production and farmers' income; b) Document the existing farming systems, resources, infrastructure, institutions,...
Tipo: Report Palavras-chave: Climatic change; Farmers; Rural communities; Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/32717
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Coping Strategies against El Nino-Induced Climatic Risk: Case of Northeast Thailand AgEcon
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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Effect of environmental conditions on the seasonal and inter-annual variability of small pelagic fish abundance off North-West Africa: The case of both Senegalese sardinella ArchiMer
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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Evolution of upper layer temperature in the Bay of Biscay during the last 40 years ArchiMer
Michel, Sylvain; Vandermeirsch, Frederic; Lorance, Pascal.
The temperature evolution over the past 40 years in the Bay of Biscay (North-East Atlantic) is investigated from an in situ data analysis, completed with a satellite SST (Sea Surface Temperature) analysis over the last 20 years. The in situ dataset is an interannual version of the BoByClim climatology, covering the Bay of Biscay area with a 10-km horizontal resolution and a 5-m vertical step. The satellite dataset is the European COastral Sea Operational Observing and Forcast System Program (ECOOP) daily analysis, covering the IBIROOS (Iberian-Biscay-Irish Sea) area with a 4-km resolution. The study area (43 degrees N-50 degrees N/12 degrees W-1 degrees W) extends over the intersection of the domains covered by these two analyses. In the 0-200 m layer of...
Tipo: Text Palavras-chave: Upper layer; Climatic change; Air sea flux; Ocean circulation model; Satellite and in situ measurements; Ecosystem; Bay of Biscay.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00000/11166/7519.pdf
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Fusarium crown rot disease: biology, interactions, management and function as a possible sensor of global climate change Ciencia e Investigación Agraria
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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Genomic selection in Coffea canephora. Repositório Alice
CARNEIRO, F. de A.; MARRACCINI, P.; BALESTRE, M.; GRATTAPAGLIA, D.; ANDRADE, A. C..
Coffee is one of the most heavily globally traded commodities and its production is based on Coffea arabica and Coffea canephora and Brazil being the world's largest coffee producer. It is believed that all this production will be affected due to climatic changes, with low flower viability, fruit development, yield and beverage quality. An alternative to assist in obtaining coffee plants more adapted to future climatic conditions would be genomic selection (GS). The implementation of these programs requires a lot of genetic markers, which are more readily discovered now after the reference genome of C. canephora became available. Another important factor is the high genetic variability of C. canephora, due to its level of allogamy, being of great...
Tipo: Anais e Proceedings de eventos Palavras-chave: Coffe; Embrapa Cerrados; Consórcio Pesquisa Café; Climatic change; Genomic selection.; Coffea Arábica; Coffea Canephora..
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084559
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Impact of iceberg melting on Mediterranean thermohaline circulation during Heinrich events ArchiMer
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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Improving Vegetable Productivity in a Variable and Changing Climate Open Agri
de la Peña,R.
Palavras-chave: Tolerance; Genes; Climatic change; Grafting; Rootstocks; Drought stress; Vegetable products; Trickle irrigation; Genomes; Temperature.
Ano: 2007 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3331
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Integrated Report of the Project "Stabilization of Upland Agriculture and Rural Development in El Nino Vulnerable Countries" AgEcon
Yokoyama, Shigeki; Concepcion, Rogelio N..
The study focuses on the impacts of El Nino-induced abnormal weather on agricultural production and the rural economy in upland areas. By focusing on the development of upland agriculture, this study attempts to contribute to the global campaign of sustainable development and poverty alleviation in rural areas. It focuses on five countries, namely: Indonesia, Malaysia, Papua New Guinea, the Philippines and Thailand. These five countries, all located in the most El Nino vulnerable area of south east Asia and the Pacific, are sufficient for analyzing the impacts.
Tipo: Report Palavras-chave: Climatic change; Upland areas; Rural development; Plant production; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/32715
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Modeling of the organic carbon contents in soils of Cerrado fragments located in Januária and Bonito de Minas, Minas Gerais State, Brazil PFB - Pesquisa Florestal Brasileira
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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Mudanças climáticas globais e o melhoramento genético florestal. Repositório Alice
HIGA, R. C. V.; HIGA, A. R..
Tipo: Parte de livro Palavras-chave: Climatic change; Melhoramento genético.; Clima; Mudança Climática..
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/306150
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Multilevel Impact Assessment and Coping Strategies against El Nino: Case of Food Crops in Indonesia AgEcon
Irawan, Bambang.
This study is the second phase of the El Nino study which was undertaken by the CGPRT Centre in five vulnerable countries namely, Indonesia, Malaysia, the Philippines, Thailand and Papua New Guinea. The first phase of the El Nino study did not fully reveal the extent of El Nino impacts on production at the farm level, what efforts are undertaken by farmers to reduce possible production decline and what constraints are faced by farmers to implement efficient coping mechanisms. El Nino impacts on household food security, mitigation efforts applied by farmers to overcome their consumption problems and the role of local institutions or the local government in handling the consequences of El Nino were also neglected by the first phase of the study. Accordingly,...
Tipo: Report Palavras-chave: Climatic change; Food crops; Food production; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/32714
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