1,721,027 research outputs found
Biophysical and socioeconomic factors influencing soil carbon stocks: a global assessment. Appendix S1: Raw Dataset [Conjunto de datos]
No full textSupplementary information of the: Duarte-Guardia, S., Peri, P., Amelung, W. et al. Biophysical and socioeconomic factors influencing soil carbon stocks: a global assessment. Mitig Adapt Strateg Glob Change 25, 1129–1148 (2020).EEA Santa CruzFil: Duarte Guardia, Sandra. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral (UNPA). Santa Cruz; Argentina.Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Amelung, Wulf. University of Bonn. Soil Science and Soil Ecology. Institute of Crop Science and Resource Conservation (INRES). Bonn; Alemania.Fil: Thomas, Evert. Bioversity International. Lima; Perú.Fil: Borchard, Nils. Natural Resources Institute Finland (Luke). Plant Production. Helsinki; Finlandia.Fil: Baldi, Germán. Universidad Nacional de San Luis. Instituto de Matemática Aplicada. San Luis; Argentina.Fil: Baldi, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). San Luis; Argentina.Fil: Cowie, Annette L. NSW Department of Primary Industries. Armidale. NSW; Australia.Fil: Cowie, Annette L. University of New England. School of Environmental and Rural Science. Armidale. NSW; Australia.Fil: Ladd, Brenton. Universidad Científica del Sur. Escuela de Agroforestería. Lima; Perú
Sustainable and optimal use of biomass for energy in the EU beyond 2020
No full textThis study was an input to the EU Impact Assessment on sustainable bioenergy (SWD(2016) 418 final) to assess different policy options and revised sustainability criteria in preparation of the revised Renewable Energy Directive ((EU)2018/2001).
The study presents the supply potential of EU28 sustainable biomass supply for energy purposes and assessed the evolution of demand to 2030 under the proposed policy scenarios. It is framed by the EU-wide target for renewable energy of at least 27% final energy consumption and the biomass contribution of almost two-thirds of the 28MS´s primary combined renewable energy production today which is expected to further increase through 2030.
The possible future development is discussed in three scenarios: (1) Restricted: EU wood availability under the condition of stronger utilisation restrictions and larger set aside areas. Higher global competition for Extra-EU solid biomass and lack of investments in infrastructure to mobilise alternative wood biomass. Low export capacity of liquid biofuels outside the EU. (2) Reference: EU wood availability is given under today´s circumstances. Extra-EU solid biomass development follows a BAU-trend. Medium export capacity of liquid biofuels. (3) Resource: maximum possible utilisation of wood in the EU under long-term sustainable conditions. Strong development of supply and infrastructure of Extra-EU solid biomass, perennial crops cultivated for export markets. High export capacity of liquid biofuels to the EU
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
How biochar works, and when it doesn't: A review of mechanisms controlling soil and plant responses to biochar
No full textVariations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Climate Change Impacts on Soil Processes in Rangelands
No full textChanging climates are expected to increase the vulnerability of the world’s rangelands to ecosystem degradation. Rising temperatures and altered rainfall patterns are likely to substantially affect plant processes and thus the maintenance of healthy soils and functional soil processes. Changing climates are likely to reduce the ability of rangeland soils to sequester carbon, resist erosion and maintain infiltration and nutrient production processes. This chapter describes the projected changes in climate for the world’s major rangelands and the effects on soil processes and ecosystem functions. We use two examples of climate-induced changes in rangelands; woody thickening from the western USA and grassland degradation in eastern Australia to demonstrate the tight interconnections between climate, altered plant and invertebrate communities, and reduced soil function. There is still considerable uncertainty associated with the assessment of soil organic carbon stocks, the magnitude of current emissions and sinks, and the possible flow-on effects to other processes in rangelands. The maintenance of plant cover, including woody cover, will be critical for carbon storage and ecosystem stability in the face of climate change, and as an aid to adaptation to the stressors of forecasted change
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