La Population active dans le Bassin parisien 1954-1962-1967-1985 PDF Download
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Author: France. Mission d'études du Bassin parisien
Publisher:
ISBN:
Category :
Languages : fr
Pages : 42
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Book Description
Author: France. Mission d'études du Bassin parisien
Publisher:
ISBN:
Category :
Languages : fr
Pages : 42
Get Book Here
Book Description
Author: France. Mission d'études du Bassin parisien
Publisher:
ISBN:
Category :
Languages : fr
Pages : 42
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Book Description
Author: Princeton University. Office of Population Research
Publisher:
ISBN:
Category : Demography
Languages : en
Pages : 768
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Book Description
Author: Télesphore Sime-Ngando
Publisher: Springer
ISBN: 3319399616
Category : Science
Languages : en
Pages : 422
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Book Description
This book represents the first multidisciplinary scientific work on a deep volcanic maar lake in comparison with other similar temperate lakes. The syntheses of the main characteristics of Lake Pavin are, for the first time, set in a firmer footing comparative approach, encompassing regional, national, European and international aquatic science contexts. It is a unique lake because of its permanently anoxic monimolimnion, and furthermore, because of its small surface area, its substantially low human influence, and by the fact that it does not have a river inflow. The book reflects the scientific research done on the general limnology, history, origin, volcanology and geological environment as well as on the geochemistry and biogeochemical cycles. Other chapters focus on the biology and microbial ecology whereas the sedimentology and paleolimnology are also given attention. This volume will be of special interest to researchers and advanced students, primarily in the fields of limnology, biogeochemistry, and aquatic ecology.
Author: T. R. New
Publisher: IUCN
ISBN: 9782831701592
Category : Biodiversity conservation
Languages : en
Pages : 188
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Book Description
Author: Nicolas Flipo
Publisher: Springer Nature
ISBN: 3030542602
Category : Science
Languages : en
Pages : 430
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Book Description
This open access book reviews the water-agro-food and socio-eco-system of the Seine River basin (76,000 km2), and offers a historical perspective on the river’s long-term contamination. The Seine basin is inhabited by circa 17 million people and is impacted by intensive agricultural practices and industrial activities. These pressures have gradually affected its hydrological, chemical and ecological functioning, leading to a maximum chemical degradation between the 1960s and the 1990s. Over the last three decades, while major water-quality improvements have been observed, new issues (e.g. endocrine disruptors, microplastics) have also emerged. The state of the Seine River network, from the headwaters to estuary, is increasingly controlled by the balance between pressures and social responses. This socio-ecosystem provides a unique example of the functioning of a territory under heavy anthropogenic pressure during the Anthropocene era. The achievements made were possible due to the long-term PIREN Seine research program, established in 1989 and today part of the French socio-ecological research network “Zones Ateliers”, itself part of the international Long-term Socio-economic and Ecological Research Network (LTSER). Written by experts in the field, the book provides an introduction to the water budget and the territorial metabolism of the Seine basin, and studies the trajectories and impact of various pollutants in the Seine River. It offers insights into the ecological functioning, the integration of agricultural practices, the analysis of aquatic organic matter, and the evolution of fish assemblages in the Seine basin, and also presents research perspectives and approaches to improve the water quality of the Seine River. Given its scope, it will appeal to environmental managers, scientists and policymakers interested in the long-term contamination of the Seine River.
Author: B.P. Tissot
Publisher: Springer Science & Business Media
ISBN: 364287813X
Category : Science
Languages : en
Pages : 715
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Book Description
Current and authoritative with many advanced concepts for petroleum geologists, geochemists, geophysicists, or engineers engaged in the search for or production of crude oil and natural gas, or interested in their habitats and the factors that control them, this book is an excellent reference. It is recommended without reservation. AAPG Bulletin.
Author: Henry N. Houérou
Publisher: Springer Science & Business Media
ISBN: 3540851925
Category : Science
Languages : en
Pages : 252
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Book Description
Covering an area of over 130 million km2 spanning the Mediterranean, equator and tropics, the African continent features a spectacular geographic diversity. Consequently, it is characterised by extremely variable climatic, edaphic and ecological conditions, associated with a wide range of natural vegetation and wildlife, as well as human population density, crops and livestock. In this book, Henry Le Houérou presents his bioclimatic and biogeographic classification of Africa. The extensive data provide the basis for comparisons between various African regions, and with regions on other continents such as Latin America or the Indian subcontinent. The results constitute a rational basis for national, regional and sub-regional rural development planning, and for agricultural research dealing with aspects such as plant and animal introductions, the extrapolation or interpolation of experimental or developmental findings, and ecosystems dynamics. Possible problems of applications are also examined.
Author:
Publisher:
ISBN:
Category : Czechoslovakia
Languages : en
Pages : 462
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Book Description
Author: Mark Dike DeLancey
Publisher: Scarecrow Press
ISBN: 0810873990
Category : History
Languages : en
Pages : 532
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Book Description
Cameroon is a country endowed with a variety of climates and agricultural environments, numerous minerals, substantial forests, and a dynamic population. It is a country that should be a leader of Africa. Instead, we find a country almost paralyzed by corruption and poor management, a country with a low life expectancy and serious health problems, and a country from which the most talented and highly educated members of the population are emigrating in large numbers. Although Cameroon has made economic progress since independence, it has not been able to change the dependent nature of its economy. The economic situation combined with the dismal record of its political history, indicate that prospects for political stability, justice, and prosperity are dimmer than they have been for most of the country's independent existence. The fourth edition of the Historical Dictionary of the Republic of Cameroon has been updated to reflect advances in the study of Cameroon's history as well as to provide coverage of the years since the last edition. It relates the turbulent history of Cameroon through a chronology, an introductory essay, a bibliography, and over 600 cross-referenced dictionary entries on significant persons, events, places, organizations, and other aspects of Cameroon history from the earliest times to the present.
