1,699 research outputs found

    CO2FIX at the landscape level - an application for the Veluwe area, the Netherlands

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    The carbon fixation model CO2FIX was adapted to run on landscape scale, and was applied to the Veluwe area, a forested region in the Netherlands. After a simulation of 500 years, the average carbon stock per hectare in the forest products compartment is about 10 Mg C per ha, the carbon stock in the soil about 125 and the carbon stock in the biomass about 100, in total 235 Mg C per ha. The proceeding average sink for the whole of the Veluwe area (73 180 ha) amounts to 0.037 Mt C in 2020, 0.034 Mt in 2032, and 0.009 Mt C in 2482. The actual annual sink saturates much earlier, around 2050, but continues to fluctuate. The spatial variability in the results is large and is a reflection of the temporal variability occurring in a rotation. The report discusses the accuracy of CO2FIX simulations, and compares results with other studies

    Spatial distribution of regional whole tree carbon stocks and fluxes of forests in Europe

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    This report presents carbon stocks and fluxes of the whole-tree biomass of European forests and other wooded land, distinguished into coniferous, deciduous and mixed forests. The results are presented at the European, the national and (where possible)the regional level. Results concerning carbon stock, net ecosystem production and net biome production for the whole-tree biomass were derived from a detailed European forest resource database and converted to carbon using biomass expansion factors. Uncertainties and differences from other estimates are discussed

    Alkyd-acrylic composite emulsions : polymerization and morphology

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    Opwarmend bos

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    Voor LNV voerde Alterra een studie uit (zie: rapport 1761) waarbij een aantal mogelijke risico's van klimaatverandering voor het Nederlandse bos letterlijk in kaart werd gebracht. Verder verscheen eind 2008 een rapport in opdracht van de Europese Commissie waarin veel aandacht is voor de gevolgen van klimaatverandering, maar ook voor de mogelijke maatregelen die beheerders kunnen neme

    The Kyoto Article 3.3 and 3.4 toolbox (KAT); January 2000

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    The KAT model provides a spreadsheet-based framework to calculate carbon sequestration in the commitment period (2008-2012) under Article 3.3 and 3.4 activities of the Kyoto protocol for the EU15 countries and selected Annex 1 countries. Any combination of 3.3 scenarios, 3.4 activities and sub-rules on Articles 3.3 and 3.4 based on policy proposals can be chosen. The carbon sequestration is calculated and presented in graphs and tables both in absolute values and in percentages of the1990 emissions. The user can interactively choose between a literature database and a database that consists of data submitted by countries under the UNFCC regulations

    Bepaal zelf de koolstofvastlegging in je bos

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    Attendering op het model CO2FIX ter bepaling van de koolstofvastleggin

    Crafting the future of the artificial womb - speculative design as a tool for public engagement with emerging technologies

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    This study aimed to characterise the potential of speculative design in public engagement with emerging technologies. Current initiatives in public engagement have important drawbacks, such as the focus on quantifiable impacts, abstract reasoning and difficulties in imagining potential futures. Speculative design is considered a promising tool for public engagement because of its ability to open up dialogues about the societal implications of emerging technologies. Realising its potential depends on a thorough understanding of the reflective practices induced by speculative design. In this study we identified enabling factors for reflective practices to unfold and 3 ways of questioning human-technology relations, namely through scenarios, stereotypes and lived experiences. Our findings show that speculative design encourages imagining futures and facilitates reflection on qualitative impacts in various forms of knowledge by providing thought-provoking prospects. The medium has shortcomings, however. For participants to take on the role of creative moral agents the design needs to tread the fine line between activating them through ambiguity and informing them. Comparing our findings with pragmatist ethics, we show how speculative design can put into practice the four most prominent features of pragmatist democratic ethical deliberation.</p
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