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| Registros recuperados: 612 | |
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| Toucanne, Samuel; Zaragosi, S.; Bourillet, Jean-francois; Gibbard, P. L.; Eynaud, F.; Giraudeau, J.; Turon, J. L.; Cremer, M.; Cortijo, E.; Martinez, P.; Rossignol, L.. |
| The correlation of continental sedimentary records with the marine isotope stratigraphy is a challenge of central importance in Quaternary stratigraphy, particularly in Western Europe where long records of glaciation on land areas are particularly rare. Here we demonstrate for the first time the interrelationship of events during the last 1.2 Ma in an ocean-sediment core from the Bay of Biscay (NE Atlantic), SW of the Channel. The identification of discharge variations from tributary river systems to the 'Fleuve Manche' palaeoriver during glacio-eustatic sea-level lowstands demonstrates the correlation of the marine sediment stratigraphy to the expansion and recession of the European ice-sheets. The amplitude and chronology of European ice-sheet... |
| Tipo: Text |
Palavras-chave: Middle pleistocene transition; Ice sheet dynamics; Sea level; Climate change; North Atlantic; English channel; Heinrich events; Fleuve manche; Deep; Origin. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6956.pdf |
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| Ray, Lily A; Department of Geography, Clark University; Resilience and Adaptation Program, University of Alaska, Fairbanks ; lray@kawerak.org; Kolden, Crystal A; Department of Geography, University of Idaho; ckolden@uidaho.edu; Chapin III, F. Stuart; Institute of Arctic Biology, University of Alaska, Fairbanks ; terry.chapin@alaska.edu. |
| Sustainability science promotes place-based resource management because natural processes vary among ecosystems. When local science is limited, land managers may be forced to generalize from other ecosystems that function differently. One proposed solution is to draw upon the traditional ecological knowledge that indigenous groups have accumulated through resource use. Integrating traditional ecological knowledge with conventional resource management is difficult, especially when the two offer competing explanations of local environments. Although resource managers may discount traditional ecological knowledge that contradicts conventional resource management, we investigate the possibility that these disagreements can arise when nonlocal resource... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Alaska; Climate change; Indigenous knowledge; Traditional ecological knowledge; Wildfire. |
| Ano: 2012 |
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| Akter, Sonia; Bennett, Jeffrey W.. |
| The sources of preference uncertainty in contingent valuation (CV) studies have rarely been investigated from a theoretical standpoint. This paper proposes a holistic theoretical framework of preference uncertainty that combines microeconomic theory with the theories of cognitive psychology. Empirical testing of the proposed theoretical model was carried out in Australia in the context of a national ‘Carbon Pollution Reduction Scheme (CPRS)’ to be introduced in 2010. Two separate ordered probit models for a certainty score associated with CV ‘Yes’ and ‘No’ responses were estimated. The results of the estimated regression models provide evidence supporting the hypotheses drawn from the theoretical model. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Contingent valuation; Preference uncertainty; Cognitive uncertainty; Climate change; Australia. |
| Ano: 2009 |
URL: http://purl.umn.edu/47938 |
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| Molina Benavides,Raúl Andrés; Sánchez Guerrero,Hugo; Atzori,Alberto Stanislao. |
| Abstract Thermal environment is recognized to be one the most important ecological factor to determine domestic animal growth, development and productivity for direct and indirect effects on its physiology and behavior. Despite having specific and individual adaptation, is very common, within seasonal or diurnal temperature variations, animals deal with situations outside their thermal comfort zone. Due to heat stress, dairy cows reduce milk production and fertility, and therefore, had achieved an increasing in metabolic disorders incidence, causing low revenues to farm in short and medium periods. Due to world climate change more impact of the meteorological variables on animal responses is expected for the future. This study aimed to describe and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Grazing; Livestock production systems; Milk production; System dynamics; Temperature. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100059 |
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| Farkas-Fekete, Maria. |
| A tanulmány alapvető célja az, hogy hozzájáruljon az érzékenység, sérülékenység és adaptációs képesség vizsgálatának módszertanához. A kutatások eredményei felhívják a figyelmet arra, hogy bár az európai vidék összessége egyre sérülékenyebbé válik a különböző globális kihívásokra, a veszélyeztetettség mértéke régiónként eltérő. A kutatások eredményei megerősítették az IPCC 3. jelentésében megfogalmazott hipotéziseket, melyek szerint a gazdag országok ugyanolyan veszélyeztetettség mellett is kevésbé sérülékenyek, mivel nagyobb az alkalmazkodóképességük. A klímaváltozás, amely pozitív és negatív hatást is gyakorol Európa mezőgazdaságára, módosítja az eddigi komparatív előnyöket, illetve hátrányokat. Gazdasági szempontból Dél- és Közép-Kelet-Európa minden... |
| Tipo: Journal Article |
Palavras-chave: Fenntarthatóság; Klímaváltozás; Érzékenység; Sérülékenység; Veszélyeztetettség; Adaptáció; Sustainability; Climate change; Vulnerability; Sensitivity; Adaptability; Agricultural and Food Policy; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/92481 |
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| Biro, Szabolcs; Kapronczai, Istvan; Szekely, Erika; Szucs, Istvan. |
| A Nemzeti Vidékstratégiai Koncepció (Vidékfejlesztési Minisztérium, 2011) vitaanyagának előszava a természeti erőforrások felértékelődésére, a természeti környezet védelmére, valamint a mezőgazdaság és a vidék szoros kapcsolatára hívja fel a figyelmet. Ennek tükrében élelmiszerelőállítás csak a talajok, az ivóvízbázisok és a táj fenntartását eredményező, a jó környezeti állapotot és az élővilág sokszínűségét megőrző, valamint a vidéki életformát, a helyi közösségeket és kultúrát megóvó jó minőségű és biztonságos alapanyagokra épülő termelés mellett értelmezhető. Jelen vitacikk a mezőgazdasági vízhasználat vidékstratégiai vonatkozásait kívánja feltárni, felhasználva kutatási eredményeinket1 és figyelembe véve vizsgálataink alapján megfogalmazott... |
| Tipo: Article |
Palavras-chave: Természeti erőforrások; Föld; Öntözés; Klíma; Role of natural resources; Land; Climate change; Irrigation; Agricultural and Food Policy; Environmental Economics and Policy; Production Economics. |
| Ano: 2011 |
URL: http://purl.umn.edu/119906 |
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| Wild,Anna-Katharina; Marx,Michael Thomas; Eisenbeis,Gerhard. |
| Micro, macro and mesofauna in the soil often respond to fluctuating environmental conditions, resulting in changes of abundance and community structure. Effects of changing soil parameters are normally determined with samples taken in the field and brought to the laboratory, i.e. where natural environmental conditions may not apply. We devised a method (STAFD - soil tubes for artificial flood and drought), which simulates the hydrological state of soil in situ using implanted cores. Control tubes were compared with treatment tubes in which floods of 15, 30, 60 and 90 days, and droughts of 60, 90 and 120 days were simulated in the field. Flooding and drought were found to reduce number of individuals in all soil faunal groups, but the response to drought... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Drought; Flooding; Soil invertebrates; Soil tubes; STAFD method. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800007 |
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| Niggol Seo,S; Mendelsohn,Robert. |
| This study estimates the impact of climate change on South American agriculture taking into account farm adaptations. The study used a Ricardian analysis of 2300 farms to explore the effects of global warming on land values. In order to predict climate change impacts for this century, were examined climate change scenarios predicted by three Atmospheric Oceanic General Circulation Models (AOGCM): the Canadian Climate Center (CCC), the Centre for Climate System Research (CCSR), and the Parallel Climate Model (PCM) models. Several econometric specifications were tested, and five separate regressions were run: for all farms, small household farms, large commercial farms, rainfed farms, and irrigated farms. Farmland values will decrease as temperature... |
| Tipo: Journal article |
Palavras-chave: Climate change; Agriculture; Ricardian approach; South America. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100007 |
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| Kaminski, Jonathan; Kan, Iddo; Fleischer, Aliza. |
| This article proposes a proactive approach for analyzing agricultural adaptation to climate change based on a structural land-use model wherein farmers maximize profit by allocating their land between crop-technology bundles. The profitability of the bundles is a function of four technological attributes via which climate variables‟ effect is channeled: yield potential; input requirements; yields' sensitivity to input use; and farm-level management costs. Proactive adaptation measures are derived by identifying the technological attributes via which climate variables reduce overall agricultural profitability, despite adaptation by land reallocation among bundles. By applying the model to Israel, we find that long-term losses stem from yield potential... |
| Tipo: Article |
Palavras-chave: Adaptation; Agricultural land use; Climate change; Crop-technology bundles; Land Economics/Use. |
| Ano: 2011 |
URL: http://purl.umn.edu/120076 |
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| Ayache, Nour; Hervé, Fabienne; Lundholm, Nina; Amzil, Zouher; Caruana, Amandine. |
| oxic Pseudo‐nitzschia australis strains isolated from French coastal waters were studied to investigate their capacity to adapt to different salinities. Their acclimation to different salinity conditions (10, 20, 30, 35 and 40) was studied on growth, photosynthetic capacity, cell biovolume and domoic acid (DA) content. The strains showed ability to acclimate to a salinity range from 20 to 40, with optimal growth rates between salinities 30 and 40. The highest cell biovolume was observed at the lowest salinity 20 and was associated with the lowest growth rate. Salinity did not affect the photosynthetic activity; Fv/Fm values and the pigment contents remained high with no significant difference among salinities. An enhanced production of zeaxanthin was,... |
| Tipo: Text |
Palavras-chave: Acclimation; Climate change; Domoic acid; Pseudo-nitzschia australis; Physiology; Salinity. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00585/69684/67552.pdf |
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| Registros recuperados: 612 | |
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