Download or read book Modelling Nutrient Digestion and Utilisation in Farm Animals written by D. Sauvant and published by Springer Science & Business Media. This book was released on 2011-05-02 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 30 years, modelling has been an important method for integrating, in a flexible, comprehensive and widely applicable way, basic knowledge and biological concepts on digestion and metabolism in farm animals. The purpose of this book is to present the 'state of art' in this area. The chapters are written by leading teams and researchers in this field of study, mainly from Europe, North America and Australasia. Considerable progress has been made in topics dealing with: modelling methods, feeding behaviour, digestion and metabolic processes in ruminants and monogastric animals. This progress is clearly illustrated by the emergence of a new paradigm in animal nutrition, which has moved from the aim to cover the requirements of the animal to explaining and predicting the responses of the animals to diets (e.g., productivity and efficiency, impact on quality of products, environmental aspects, health and well-being). In this book several chapters illustrate that through empirical models, meta-analysis is an efficient tool to synthesize information gathered over recent decades. In addition, compared with other books on modelling farm animal nutrition, two new aspects received particular attention: expanding knowledge of the individual animal to understanding the functioning and management of herds, and the consideration of the environmental impact of animal production. This book is a valuable source of information for researchers, nutritionists, advisors, and graduate students who want to have up-to-date and concise information on mathematical modelling applied to farm animals.

Download or read book Devenir du phosphore apport sur les sols et risques de contamination des eaux de surface written by Hugues Vanden Bossche and published by . This book was released on 1999 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE ETUDE PORTE SUR LE DEVENIR DU PHOSPHORE (P) DES BOUES RESIDUAIRES DE STATION D'EPURATION EPANDUES SUR LES SURFACES AGRICOLES ET LES RISQUES DE CONTAMINATION DES EAUX DE SURFACES. LES CARACTERISTIQUES CHIMIQUES DES BOUES ET LES FORMES DU P ONT ETE DETERMINEES PAR DES ANALYSES ELEMENTAIRES EN FRX, ICP-SEA ET ICP-SM ; PAR DES EXTRACTIONS CHIMIQUES ; PAR DES INVESTIGATIONS AU MEB ET DE LA MICROANALYSE X ET PAR L'ETUDE DE LA DRX. LA MOBILITE ET LA BIO-DISPONIBILITE DU P DES BOUES ONT ETE ESTIMEES PAR L'ETUDE D'ISOTHERMES DE DESORPTION, DE LA CINETIQUE DE DILUTION ISOTOPIQUE DE 3 2P (EN CONDITIONS OXYDANTES OU REDUCTRICES) ET DES ESSAIS DE CULTURE DE POIREAUX (AVEC ET SANS MYCORHIZES). LE TRANSFERT DU P A ETE MESURE DANS LES EAUX DE RUISSELLEMENT A LA SURFACE DE PARCELLES AGRICOLES AMENDEES AVEC DES BOUES, LORS DE PLUIES NATURELLES OU SIMULEES. LES BOUES ISSUES DE STATIONS EQUIPEES D'UNE DEPHOSPHATATION BIOLOGIQUE COMPORTENT UNE FRACTION DE P TRES MOBILE, ASSIMILABLE PAR LES PLANTES. L'ADJONCTION DE SELS DE FER IMMOBILISE UNE PART DU P SOUS FORME DE PHOSPHATES DE FER, LA MOBILITE DU P EST ALORS CONTROLEE PAR LA SORPTION SUR DES OXY(-HYDRO)XYDES DE FER. L'APPARITION DE CONDITIONS REDUCTRICES A LA FAVEUR DE L'ACTIVITE BIOLOGIQUE CONCOURT A LA LIBERATION PARTIELLE DU P. LA DESHYDRATATION ET LE SECHAGE DES BOUES CONTRIBUENT A ACCROITRE LA PART IMMOBILISEE. LE CHAULAGE FAVORISE LA PRECIPITATION D'APATITE QUI REND LE P INACCESSIBLE AUX PLANTES. LES BOUES DESHYDRATEES FORMENT DES AGREGATS A LA SURFACE DU SOL. LE P EST ALORS TRANSFERE AU SOL PAR LIXIVIATION. SELON LA BOUE, LA PERTE DE P ATTEINT 25 A 60% DANS LES DEUX MOIS QUI SUIVENT L'EPANDAGE. CE PHENOMENE EST INSUFFISANT POUR AFFECTER LA QUALITE DES EAUX DE RUISSELLEMENT DONT LE P, SURTOUT PARTICULAIRE, PROVIENT DU SOL. LES BOUES LIQUIDES PROVOQUENT UNE AUGMENTATION DE LA TENEUR EN P SOLUBLE DANS L'EAU, LORS DE PLUIES INTENSES. MAIS, ELLES PRESERVENT LA STRUCTURE DE LA SURFACE DU SOL CE QUI REDUIT L'EROSION ET LES PERTES DE P TOTAL.

Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Characterization Treatment and Use of Sewage Sludge written by P. L'Hermite and published by Springer. This book was released on 1981-05-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Second European Symposium held in Vienna, Austria, 21-23 October, 1980

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 Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.

Download or read book Geotechnics for Sustainable Infrastructure Development written by Phung Duc Long and published by Springer Nature. This book was released on 2019-11-28 with total page 1417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents 09 keynote and invited lectures and 177 technical papers from the 4th International Conference on Geotechnics for Sustainable Infrastructure Development, held on 28-29 Nov 2019 in Hanoi, Vietnam. The papers come from 35 countries of the five different continents, and are grouped in six conference themes: 1) Deep Foundations; 2) Tunnelling and Underground Spaces; 3) Ground Improvement; 4) Landslide and Erosion; 5) Geotechnical Modelling and Monitoring; and 6) Coastal Foundation Engineering. The keynote lectures are devoted by Prof. Harry Poulos (Australia), Prof. Adam Bezuijen (Belgium), Prof. Delwyn Fredlund (Canada), Prof. Lidija Zdravkovic (UK), Prof. Masaki Kitazume (Japan), and Prof. Mark Randolph (Australia). Four invited lectures are given by Prof. Charles Ng, ISSMGE President, Prof.Eun Chul Shin, ISSMGE Vice-President for Asia, Prof. Norikazu Shimizu (Japan), and Dr.Kenji Mori (Japan).

Download or read book Agrochimica written by International Atomic Energy Agency and published by . This book was released on 1977 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic matter and soil productivity; Turnover of plant residues; Mineralization of organic compounds; Dynamics of organic forms of nitrogen; Nitrogen economy; Biodegradation of organic matter; Biochemical transformation of organic matter; Bitumens in soil organic matter; Characterization of humic acids; Carbon dating; Modern techniques and their implact on soil organic matter research; Sludge; Soil organic matter components and plant metabolism; Interaction between agrochemicals and organic matter; Peat.

Download or read book Clothing Poverty written by Andrew Brooks and published by Zed Books Ltd.. This book was released on 2015-02-12 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: ‘An interesting and important account.’ Daily Telegraph Have you ever stopped and wondered where your jeans came from? Who made them and where? Ever wondered where they end up after you donate them for recycling? Following a pair of jeans, Clothing Poverty takes the reader on a vivid around-the-world tour to reveal how clothes are manufactured and retailed, bringing to light how fast fashion and clothing recycling are interconnected. Andrew Brooks shows how recycled clothes are traded across continents, uncovers how retailers and international charities are embroiled in commodity chains which perpetuate poverty, and exposes the hidden trade networks which transect the globe. Stitching together rich narratives, from Mozambican markets, Nigerian smugglers and Chinese factories to London’s vintage clothing scene, TOMS shoes and Vivienne Westwood’s ethical fashion lines, Brooks uncovers the many hidden sides of fashion.

Download or read book Geotextiles written by Robert Koerner and published by Woodhead Publishing. This book was released on 2016-02-11 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geotextiles: From Design to Applications presents valuable information on the high performance fabrics used in soil separation, drainage, filtration, reinforcement, and cushioning. These polymeric materials offer solutions for geoengineering and other civil engineering specialties due to their advanced physical, mechanical, hydraulic, and endurance properties. This important book offers comprehensive coverage of the manufacture, functions, properties, designs, and applications of geotextiles. Part One begins with a chapter on the history of geotextiles, followed by chapters giving detailed reviews of the types of fabrics and their manufacturing processes, from resin type, to fiber extrusion, to textile fabrication. Part Two covers the properties, behavior, and testing of geotextiles, with Part Three focusing on applications dealing with the specific primary functions of geotextiles. In Part Four, chapters offer numerous general applications of geotextiles, including those in waste containment, marine engineering, walls/slopes, agriculture, and erosion control. Finally, the chapters of Part Five address quality control and assurance for geotextiles, and the increasingly important topic of sustainability. - Reviews the types of fabrics used for geotextiles and their manufacturing processes - Covers the properties, behavior, and testing of geotextiles - Contains detailed discussions of the primary functions of geotextiles and their wide range of applications

Download or read book Ecology of Fresh Waters written by Brian R. Moss and published by John Wiley & Sons. This book was released on 2009-07-15 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: This established textbook continues to provide a comprehensive andstimulating introduction to rivers, lakes and wetlands, and waswritten as the basis for a complete course on freshwater ecology.Designed for undergraduate and early postgraduate students who wishto gain an overall view of this vast subject area, this accessibleguide to freshwater ecosystems and man's activities will also beinvaluable to anyone interested in the integrated management offreshwaters. The author maintains the tradition of clarity andconciseness set by previous editions, and the text is extensivelyillustrated with photographs and diagrams. Examples are drawn fromthe author's experience in many parts of the world. In this edition, the scientific content of the text has beenfully revised and updated. Emphasis has been placed on humanimpacts, and a completely new chapter has been added on the futureof freshwaters. Balanced and stimulating introduction to limnology. Successfully combines fundamental and applied aspects ofintegrated management of freshwaters, with strong emphasis on humanlinks. Completely revised and rewritten with a threefold increase inthe number of illustrations. New chapter on the future of freshwaters. Of interest to undergraduates, beginning postgraduates and anylimnologically interested reader.

Download or read book MEGA CRISES written by Ira Helsloot and published by Charles C Thomas Publisher. This book was released on 2012-08-01 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live in turbulent times with continents and nations facing ever-heightening risks such as natural disasters, intense and protracted conflicts, terrorism, corporate crises, cyber threats to infrastructures and mega-events. We are witnessing the rise of mega-crises and a new class of adversity with many unknowns. The prospect of mega-crises presents professionals and students in the field of crisis management with four major tasks. First, they should engage in “deep thinking” about the causes of the increasing occurrence of mega-crises. Second, they should identify and work through the dominant trends which complicate contemporary crisis management. Third, they should upgrade institutional crisis management capacity. Fourth, they should improve societal resilience since no institutional complex can mitigate or manage these mega-crisis on its own. This book is divided into four primary parts, each of which looks at one facet of mega-crises. Part I focuses on the concept of a mega-crisis and mega-crisis management; Part II examines crisis management of mega-natural disasters; Part III evaluates crisis management of man-made mega-crises; and Part IV identifies mega-threats and vulnerabilities. Additional major topics include Hurricane Katrina; Hurricane Gustav; the London Bombings; the Mumbai Terrorist Attacks of July 7, 2005; corporate meltdowns; the subprime crisis; the Olympic Games; electricity grids; global climate change; the Dutch Delta; risks to food security; and mega-crises and the Internet. This comprehensive text will provide practitioners and academics with the results of an across-the-board research effort in the prospects, nature, characteristics, and the effects of mega-crises.

Download or read book Metals Speciation in Soils written by and published by . This book was released on 1996 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable food planning evolving theory and practice written by André Viljoen and published by Wageningen Academic Publishers. This book was released on 2012-03-30 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: With over half the world's population now deemed to be urbanised, cities are assuming a larger role in political debates about the security and sustainability of the global food system. Hence, planning for sustainable food production and consumption is becoming an increasingly important issue for planners, policymakers, designers, farmers, suppliers, activists, business and scientists alike. The rapid growth of the food planning movement owes much to the fact that food, because of its unique, multi-functional character, helps to bring people together from all walks of life. In the wider contexts of global climate change, resource depletion, a burgeoning world population, competing food production systems and diet-related public health concerns, new paradigms for urban and regional planning capable of supporting sustainable and equitable food systems are urgently needed. This book addresses this urgent need. By working at a range of scales and with a variety of practical and theoretical models, this book reviews and elaborates definitions of sustainable food systems, and begins to define ways of achieving them. To this end 4 different themes have been defined as entry-points into the discussion of 'sustainable food planning'. These are (1) urban agriculture, (2) integrating health, environment and society, (3) food in urban design and planning and (4) urban food governance.

Download or read book Ecological Water Quality written by Voudouris and published by BoD – Books on Demand. This book was released on 2012-05-16 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book attempts to cover various issues of water quality in the fields of Hydroecology and Hydrobiology and present various Water Treatment Technologies. Sustainable choices of water use that prevent water quality problems aiming at the protection of available water resources and the enhancement of the aquatic ecosystems should be our main target.