Author:
Publisher:
ISBN:
Category : Facies (Geology)
Languages : en
Pages : 352

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Author: A. Matter
Publisher: Wiley-Blackwell
ISBN:
Category : Nature
Languages : en
Pages : 304

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Author: Janet K. Pitman
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Caterina Batello
Publisher: Food & Agriculture Org.
ISBN: 9789251050644
Category : Business & Economics
Languages : en
Pages : 328

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Book Description
This art book contains over 350 color photographs by Marzio Marzot, documenting information on traditional food production systems, scientific details and notes from a journey through one of the world' s outstanding region: the Lake Chad Basin in Africa. It provides an insight into the life and customs of the local farmers, fishermen and pastoralists who foster, maintain and utilize biodiversity in their traditional agricultural systems, thereby deploying the knowledge and techniques that they have accumulated over many centuries. FAO promotes the sharing of experiences and awareness related to the role of rural people in conserving and sustainably using agricultural biodiversity. Building on the local knowledge and social organization of farmers is indispensable. The images in this book are a tribute to the knowledge and work of farmers and their care for the land.

Author: Albert Matter
Publisher: John Wiley & Sons
ISBN: 9780470265710
Category : Lakes
Languages : en
Pages : 290

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Book Description

Author: John David Collinson
Publisher: Wiley-Blackwell
ISBN:
Category : Science
Languages : en
Pages : 592

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Author: Nathalie A. Cabrol
Publisher: Elsevier
ISBN: 0080931626
Category : Science
Languages : en
Pages : 411

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Book Description
On Earth, lakes provide favorable environments for the development of life and its preservation as fossils. They are extremely sensitive to climate fluctuations and to conditions within their watersheds. As such, lakes are unique markers of the impact of environmental changes. Past and current missions have now demonstrated that water once flowed at the surface of Mars early in its history. Evidence of ancient ponding has been uncovered at scales ranging from a few kilometers to possibly that of the Arctic ocean. Whether life existed on Mars is still unknown; upcoming missions may find critical evidence to address this question in ancient lakebeds as clues about Mars’ climate evolution and its habitability potential are still preserved in their sedimentary record. Lakes on Mars is the first review on this subject. It is written by leading planetary scientists who have dedicated their careers to searching and exploring the questions of water, lakes, and oceans on Mars through their involvement in planetary exploration, and the analysis of orbital and ground data beginning with Viking up to the most recent missions. In thirteen chapters, Lakes on Mars critically discusses new data and explores the role that water played in the evolution of the surface of Mars, the past hydrological provinces of the planet, the possibility of heated lake habitats through enhanced geothermal flux associated with volcanic activity and impact cratering. The book also explores alternate hypotheses to explain the geological record. Topographic, morphologic, stratigraphic, and mineralogic evidence are presented that suggest successions of ancient lake environments in Valles Marineris and Hellas. The existence of large lakes and/or small oceans in Elysium and the Northern Plains is supported both by the global distribution of deltaic deposits and by equipotential surfaces that may reflect their past margins. Whether those environments were conducive to life has yet to be demonstrated but from comparison with our planet, their sedimentary deposits may provide the best opportunity to find its record, if any. The final chapters explore the impact of climate variability on declining lake habitats in one of the closest terrestrial analogs to Mars at the Noachian/Hesperian transition, identify the geologic, morphologic and mineralogic signatures of ancient lakes to be searched for on Mars, and present the case for landing the Mars Science Laboratory mission in such an environment. First review on the subject by worldwide leading authorities in the field New studies with most recent data, new images, figures, and maps Most recent results from research in terrestrial analogs

Author: Hiroya Kawanabe
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 360

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Author: Robin W. Renaut
Publisher: Springer
ISBN: 9783642250569
Category : Science
Languages : en
Pages : 900

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Book Description
This book is the first comprehensive account of the modern Kenya Rift Valley lakes and their precursor lakes preserved in the sedimentary record. The first part gives the broad geological and environmental background to the Kenya Rift and a history of research. In the second part, each modern lake is described from perspectives of geology, limnology, ecology, sedimentology and late Quaternary history. The fossil lake sediments, some linked to hominin sites, and their paleoenvironmental history are considered in the third part. In the fourth section, the global tectonic, volcanic and climate controls of lake evolution in continental rifts are examined, with a synthesis of the chemistry and evolution of Kenya Rift waters. The last section discusses the resource potential of the lakes and their sediments, and the environmental issues that currently affect the modern lakes. This research-level book (geology, paleoecology) will be illustrated throughout by original figures and photographs.

Author: C.H. Fernando
Publisher: Springer Science & Business Media
ISBN: 9400965451
Category : Science
Languages : en
Pages : 511

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Book Description
When the late Professor Joachim Illies suggested in 1980 that I edit a volume of the Monographiae Biologicae on Sri Lanka, I was glad to accept the challenge. Although I had spent only six years of my research and teaching career in Sri Lanka, I had made personal contact or corresponded with many scientists who had worked in, still work in, or who have studied material from Sri Lanka. The present domicile of the authors of the chapters in this volume shows the wide geographic spread of interest in Sri Lanka, and indicates also the dispersion of Sri Lankan scientists like myself. Sri Lanka has had a relatively long history of indigenous scientific research in the natural sciences. From the early work of Kelaart (1852, Prodromous Fauna Zeylanicae, Ceylon Govt. Press, 250 pp.) to the present time, there has been a more or less sustained research effort in the natural sciences. The Colombo Museum, which celebrated its centenary only a few years ago, and the world famous Peradeniya Botanical Gardens, served as repositories and bases for continued research on the fauna and flora. There are a number of land marks in these studies.