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  • Amazonia  (1)
  • carbon saturation; tree diversity; particle size fractionation; subsoil; soil organic carbon  (1)
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  • 1
    Keywords: land management ; Amazonia ; global change
    Description / Table of Contents: The Carbiocial Project investigates viable carbon-optimized land management strategies for maintaining tropical ecosystem services under land use change and changing climate conditions in Southern Amazonia – a hotspot of global change. The project aims at understanding the vital natural processes and socio-economic driving forces in the region and develops strategies to enhance and protect carbon stocks in the recently deforested agroscapes of Central/Northern Mato Grosso and South Pará. That is why Carbiocial analyzes and models soil, water and climate as well as agro-economics, social and political transformations. Based on detailed storylines, the project aims at identifying possible entry-points for a necessary change in local and regional production patterns, considering local livelihoods as well as the present national and global economic, legal and political situation. This book gives an overview of the first results of the multi-disciplinary Carbiocial Project by publishing the main presentations, held on the Carbiocial Status Conference, on October 7-8, 2013, in Cuiabá. In sixteen chapters the authors elucidate the project‘s current state of knowledge, illustrating adapted methods for regional modeling and promising strategies for the Amazon development. | Contents --- Stefan Hohnwald & Gerhard Gerold: Carbon-Optimized Land Management Research for the Southern Amazon-Geographical and Organizational Settings of the Carbiocial-Carbioma Project Consortium --- Philip M. Fearnside, Aurora M. Yanai & Claudia S. M. N. Vitel: Modeling Baselines for REDD Projects in Amazonia: Is the Carbon Real? --- Jens Boy, Charlotte Schumann, Simone Strey, Robert Strey, Georg Guggenberger & Regine Schönenberg: Digging Deeper – Biographic Interviews as a Promising Tool for the Joint Dissemination of Natural- and Social Science Results in REDD Contexts --- Carlos E. P. Cerri, Thalita F. Abbruzzini, Carolina B. Brandani, Mariana R. Durigan & Denise Signor: Soil Carbon Stocks and Greenhouse Gas Emissions from Agrosystems in Brazil --- Karl M. Wantzen, Malte Unger, Eduardo G. Couto, Ricardo S. S. Amorim, Karina P. Peña & Ulrich Irmler: Carbon Farming: Enriching Tropical Farm Soils with Organic Matter --- Alphonce C. Guzha, Ricardo S. S. Amorim, Rodolfo Nóbrega, Gabriele Lamparter, Kristof Kovacs, Norma Bertão & Gerhard Gerold: Impacts of Land Cover and Climate Change on Hydrology and Hydrochemistry in Selected Catchments in Southern Amazonia: Preliminary Analysis and Results --- Marcus Schindewolf, Daniela Schönke, Ricardo S. S. Amorim & Jürgen Schmidt: Effects of Contour Banks and No-Till Measures on Run-Off and Sediment Yield in Campo Verde Region, Mato Grosso --- Alessandra R. Gomes, César G. Diniz & Cláudio A. Almeida: Amazon Regional Center (INPE/CRA) Actions for Brazilian Amazon Forest: TerraClass and Capacity Building Projects --- Patrick Hostert, Tobia Lakes, Hannes Müller, Florian Gollnow & Letícia B. V. Hissa: Land-Use Monitoring and Change Detection --- Jürgen Böhner, Helge Dietrich, Klaus Fraedrich, Tobias Kawohl, Markus Kilian, Valerio Lucarini & Frank Lunkeit: Development and Implementation of a Hierarchical Model Chain for Modelling Regional Climate Variability and Climate Change Over Southern Amazonia --- Claas Nendel, Hermann Jungkunst & Adriano M. R. Figueiredo: Intercol and Steps Towards a Simplified DSS --- Neli A. de Mello-Théry & Paulo R. Cunha: Environmental Policies and Forest Code: Changes and Repercussions on the Agriculture in Mato Grosso --- Regine Schönenberg, Korbinian Hartberger & Charlotte Schumann: Challenges and Chances of Social Transformation for GHG-Optimized Land- and Natural Resource Management Strategies: Stakeholder-Dialogues as Prerequisite for the Elaboration of Applicable Results --- José H. Benatti & Luly R. da Cunha Fischer: Land Use Regulations in the State of Pará: An Introductory Approach of Its Guidelines --- Martin Coy, Michael Klingler, Matthias Siebold & Thomas Berger: Socio-Economic Regional Change and Agro-Economic Development Along the BR-163 --- Edna Castro: Deforestation Along the BR-163: Socio-Environmental Conflicts and Ignored Governmental Politics
    Pages: Online-Ressource (174 Seiten)
    ISBN: 9783863951382
    Language: English
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  • 2
    Publication Date: 2021-03-29
    Description: Forest soils contribute ca. 70% to the global soil organic carbon (SOC) pool and thus are an important element of the global carbon cycle. Forests also harbour a large part of the global terrestrial biodiversity. It is not clear, however, whether tree species diversity affects SOC. By measuring the carbon concentration of different soil particle size fractions separately, we were able to distinguish between effects of fine particle content and tree species composition on the SOC pool in oldgrowth broadleaved forest plots along a tree diversity gradient (1, 3and 5species). Variation in clay content explained part of the observed SOC increase from monospecific to mixed forests, but we show that the carbon concentration per unit clay or fine silt in the subsoil was by 30–35% higher in mixed than monospecific stands indicating a significant species identity or species diversity effect on C stabilization. Underlying causes may be differences in fine root biomass and turnover, in leaf litter decomposition rate among the tree species, and/or speciesspecific rhizosphere effects on soil. Our findings may have important implications for forestry offering management options through preference of mixed stands that could increase forest SOC pools and mitigate climate warming.
    Description: Open-Access-Publikationsfonds 2014
    Keywords: carbon saturation; tree diversity; particle size fractionation; subsoil; soil organic carbon ; 551
    Language: English
    Type: article , publishedVersion
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