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Peatlands of the Western Guayana Highlands, Venezuela

Properties and Paleogeographic Significance of Peats

Paperback Engels 2013 2011e druk 9783642270512
Verwachte levertijd ongeveer 9 werkdagen

Samenvatting

The Guayana Highlands in northeastern tropical America, rising from lowland rain forests and savannas up to 3000 m elevation, are characterized by ancient tablelands called tepuis. The peatlands that developed on the tepuis constitute unique and fascinating ecosystems and are the focus of this volume, which starts with an overview of tropical and subtropical peats, followed by an introduction to the geo-ecological features of the Guayana region as a whole, with special emphasis on the diversity of the vegetation cover from lowlands to uplands to highlands. The core subject centers on the properties and dating of the peat deposits and the interpretation of the chronological record in terms of past environmental changes. The well illustrated book will appeal to a broad range of scientists interested in tropical highland peats, including quaternarists, soil scientists, geomorphologists, geographers, geologists, ecologists, botanists, hydrologists, conservationists, and land use planners.

Specificaties

ISBN13:9783642270512
Taal:Engels
Bindwijze:paperback
Aantal pagina's:295
Uitgever:Springer Berlin Heidelberg
Druk:2011

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Inhoudsopgave

<p>Ch1     Introduction</p><p>            O. Huber, J.A. Zinck              </p><p> </p><p>Ch2     Tropical and subtropical peats: an overview</p><p>            J.A. Zinck</p><p> </p><p>           2.1 Introduction</p><p>           2.2 Peat extent and distribution</p><p>           2.3 Peat formation and development  </p><p>           2.4 Features of peats and peatlands</p><p>           2.5 Peat classification</p><p>           2.6 Peat and peatland as resources</p><p>           2.7 Conclusion </p><p>           2.8 References</p><p> </p><p>Ch3     The Guayana region and the study areas: geo-ecological characteristics</p><p>            O. Huber, P. García</p><p> </p><p>            3.1 Introduction</p><p>            3.2 Geology and paleoecology</p><p>            3.3 Physiography, climate, and vegetation</p><p>            3.4 Study areas</p><p>            3.5 Conclusions </p><p>            3.6 References</p><p> </p><p>Ch4     Tepui peatlands: setting and features</p><p>            J.A. Zinck, P. García</p><p> </p><p>           4.1 Introduction</p><p>           4.2 Rock substratum</p><p>           4.3 Geomorphic landscape</p><p>           4.4 Peatland types</p><p>           4.5 Peatland patterns</p><p>           4.6 Conclusions</p><p>           4.7 References</p><p> </p><p>Ch5     Laboratory methods for characterization of peat materials</p><p>            R. Schargel, P. García, D. Jiménez</p><p> </p><p>           5.1 Introduction</p><p>           5.2 Criteria used for the recognition of organic soils in the Soil Taxonomy </p><p>           5.3 Laboratory methods specific for organic soils </p><p>           5.4 Testing laboratory methods on selected Venezuelan Histosols</p><p>           5.5 Laboratory determinations performed on the Guayana Histosols </p><p>           5.6 Conclusions  </p><p>           5.7 References</p><p> </p><p>Ch6     Properties and classification of the tepui peats</p><p>            P. García, R. Schargel, J.A. Zinck</p><p> </p><p>           6.1 Introduction</p><p>           6.2 Morphological features</p><p>           6.3 Physical properties</p><p>           6.4 Chemical properties</p><p>           6.5 Spatial variations </p><p>           6.6 Taxonomic classification </p><p>           6.7 Conclusions</p><p>           6.8 References</p><p> </p><p>Ch7     Tepui peatlands: age record and environmental changes</p><p>            J.A. Zinck, P. García, J. van der Plicht</p><p> </p><p>           7.1 Introduction</p><p>           7.2 Sampling and dating method</p><p>           7.3 Site description and age record</p><p>           7.4 Interpretations and correlations: peat formation and environmental changes</p><p>           7.5 Conclusions</p><p>           7.6 References</p><p> </p><p>Ch8     Origin of organic matter leading to peat formation in the southeastern Guayana uplands and highlands</p><p>            E. Medina, E. Cuevas, O. Huber</p><p>  </p><p>           8.1 Introduction</p><p>           8.2 Site description</p><p>           8.3 Results: relationship between <sup>13</sup>C values and peat age</p><p>           8.4 Discussion</p><p>           8.5 Conclusion </p><p>           8.6 References</p><p> </p><p>Ch9    Synthesis: the peatscape of the Guayana Highlands</p><p>            J.A. Zinck</p><p> </p><p>           9.1 Introduction</p><p>           9.2 Why do peatlands and peats matter?</p><p>           9.3 Setting and formation of the peatlands: the peatscape </p><p>           9.4 Morphological, physical, chemical and taxonomic characteristics of the peats</p><p>           9.5 Vegetation of the peatlands: present and past</p><p>           9.6 Environmental changes: diachronic inception and polygenetic evolution of peats</p><p>           9.7 The highland-lowland connection: a system approach</p><p>           9.8 Concluding remark</p><p> </p><p>App   Site and profile characteristics </p><p>            </p><p>          A.1 Introduction</p><p>          A.2 Site and profile descriptions</p><p>          A.3 Laboratory data</p><p> </p><p> </p>

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        Peatlands of the Western Guayana Highlands, Venezuela