Download or read book Mod lisation des transferts d eau et de sels dans un sol argileux written by Vincent Vallès and published by . This book was released on 1987 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mod lisation des transferts d eau et de sels dans un sol argileux written by Vincent Valles and published by . This book was released on 1987 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tude et mod lisation des transferts d eau et de sels dans un sol argileux written by Vincent Valles and published by . This book was released on 1985 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette étude traite des transferts de l'eau et des solutés dans les sols. Les mécanismes géochimiques qui contrôlent les solutions lors de l'évaporation ont été déterminés à partir de mesures à plusieurs échelles puis modélisées. Les caractéristiques hydrodynamiques montrent l'existence de deux types d'écoulements liés à deux tailles de la porosité. Un modèle physique de transfert original faisant intervenir deux ou trois classes de pores est proposé. Celui-ci est testé avec succès sur sol sableux puis argileux. La réunion des deux modèles précédents aboutit à la mise au point d'un modèle synthétique physico-chimique qui permet de suivre les précipitations de minéraux en fonction de la taille des pores et la répartition des sels dans le profil. Ces modèles conduisent à des applications agronomiques, notamment pour la mise en valeur des sols salés. Ainsi, il a été traité à titre d'exemple l'intérêt des amendements gypseux et le calcul des doses de lessivage pour les sols de la basse vallée de l'Oued Medjerda en Tunisie.
Download or read book Etude et modelisation des tranferts d eau et de sels dans un sol argileux written by V. Valles and published by . This book was released on 1985 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1990 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geotitles written by and published by . This book was released on 1993 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions Congress on Irrigation and Drainage written by and published by . This book was released on 1984 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 2002 accompanied by CD-ROM containing v.2 of the congress, and another CD-ROM containing the work of the 18th congress.
Download or read book Twelfth International Congress on Irrigation and Drainage Fort Collins USA 28 May 2 June 1984 written by and published by . This book was released on 1984 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agricultural Compendium for Rural Development in the Tropics and Subtropics written by and published by Elsevier Science & Technology. This book was released on 1985 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ilaco handbook
Download or read book Soils and Sediments written by Helene Paquet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clays and soils are of great importance in various scientific fields, such as agriculture and environmental science, and in mineral deposits. Students and close collaborators of Georges Millot, the eminent French clay sedimentologist, have put together a book with topics ranging from weathering processes and diagenetic evalution of sediments to sedimentary mineral deposits. The book is of interest to practitioners, advanced students as well as teachers in the above fields.
Download or read book Agronomie written by and published by . This book was released on 1983 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Download or read book Soil Erosion and Carbon Dynamics written by Eric J. Roose and published by CRC Press. This book was released on 2005-12-09 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most complete, nonpartisan source of information on this hot agronomic topic available today, this book brings together a diverse group of papers and data to resolve the debate between sedimentologists and soil scientists and agronomists over whether the effects of soil erosion on carbon and atmospheric CO2 is beneficial or destructive. Divided into four sections, it offers data on how soil erosion affects soil, water, and air quality. Topics include mineralization rate, inundation, sediment deposition, and global warming potential, as well as carbon dioxide, methane, and nitrous oxide emissions, and the implications of soil erosion on the global carbon cycle and carbon budget.
Download or read book Glossary of Soil Science Terms 2008 written by Soil Science Society of America and published by ASA-CSSA-SSSA. This book was released on 2008 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 1800 terms are included in this revised glossary. Subject matter includes soil physics, soil chemistry, soil biology and biochemistry, pedology, soil and water management and conservation, forest and range soils, nutrient management and soil and plant analysis, mineralogy, wetland soils, and soils and environmental quality. Two appendices on tabular information and designations for soil horizons and layers also are included.
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Download or read book UNESCO General History of Africa Vol I Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Download or read book Shri Sai Satcharita written by Govind Raghunath Dabholkar and published by Sterling Publishers Pvt., Limited. This book was released on 1999 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
