Author : Roberto Tomas Oficial
Publisher : WorldFish
Page : 60 pages
File Size : 45,86 MB
Release : 1998-01-01
Category : Agricultural ecology
ISBN : 9718709851
Author : Gesa Horstkotte-Wesseler
Publisher : Int. Rice Res. Inst.
Page : 248 pages
File Size : 11,15 MB
Release : 1999
Category : Business & Economics
ISBN : 9718020047
Author : Food and Agriculture Organization of the United Nations
Publisher : Fao
Page : 256 pages
File Size : 16,35 MB
Release : 2007
Category : Business & Economics
ISBN :
The global food production sector is growing. In many areas farming systems are intensifying. This rapid growth has in some cases caused environmental damage. This document include an introduction and 12 review papers describing methods for such comparisons as well as the deliberations of their authors, a group of nineteen international experts on environmental economics, energy accounting, material and environmental flows analysis, aquaculture, agriculture and international development. Experts concluded that comparisons can be useful for addressing local development and zoning concerns, global issues of sustainability and trade and consumer preferences for inexpensive food produced in an environmentally sustainable manner. In order to be useful, however, methods to assess environmental costs should be scientifically based, comparable across different sectors, expandable to different scales, inclusive of externalities, practical to implement and easily understood by managers and policy-makers. Aquaculture in many locations and conditions is or could be much more environment friendly than other food sectors.--Publisher's description.
Author : Melba G. Bondad-Reantaso
Publisher : Food & Agriculture Organization of the UN (FAO)
Page : 196 pages
File Size : 12,68 MB
Release : 2009
Category : Business & Economics
ISBN :
The FAO Expert Workshop on Methods and Indicators for Evaluating the Contribution of Small-scale Aquaculture to Sustainable Rural Development held in Nha Trang, Viet Nam, from 24 to 28 November 2009, attempted to develop an indicator system to measure the contribution of SSA. The workshop used a number of processes and steps in the developing the indicator system, including: (i) understanding the subject of measurements; (ii) identifying an analytical framework and ratting criteria (iii) developing a list of SSA contributions; (iv) categorising the contributions; (v) devising and organising the indicators of contribution; and (vi) measuring the indicators. The major outcome was the development, through an iterative process, of an indicator system which can provide a good measure of the contribution of SSA based on agreed criteria (accuracy, measurability and efficiency) and the sustainable livelihood approach analytical framework which consists of five capital assets (human, financial, physical, social and natural) and can be used for various livelihoods options.
Author : E. M. A. Smaling
Publisher : Oxford University Press, USA
Page : 344 pages
File Size : 11,48 MB
Release : 1999
Category : Technology & Engineering
ISBN :
Nutrient imbalances have a substantial impact on the productivity and sustainability of agroecosystems worldwide. Fertilizer and manure use, atmospheric deposition, international transportation of produce, solute and gas emissions and soil erosion have all contributed to deficits and surpluses, which in some areas have reached alarming proportions. This book describes and explores the latest concepts of the causes of nutrient imbalances, including the importance of different spatial scales, and examines ways to quantify and manage nutrient stocks, the increasing amount of legislation and the urgent need for the development of integrated nutrient management technologies. Nutrient Disequilibria in Agroecosystemsalso includes case studies, from fish farms in eastern Asia to nutrient flow monitoring in Kenyan tea/maize farms, the dairy sector in New Zealand and ecological farming in Switzerland, the future for global-level research in soil fertility management and nutrient flow analysis. This title should enhance research and the adoption of (inter)national policies on soil fertility maintenance with its global, multi-scale, multi-disciplinary approach.
Author : Sven E. Jorgensen
Publisher : CRC Press
Page : 266 pages
File Size : 45,79 MB
Release : 2020-01-29
Category : Law
ISBN : 1000716333
The environmental analysis of pollution problems always involves the use of mass and energy balances to quantify the extent of pollution and its sources. This same form of analysis can be applied to ecosystems, production systems, a whole country or a region. A Systems Approach to the Environmental Analysis of Pollution Minimization identifies and describes the common factors shared by these systems. The book is organized in twelve chapters and progresses from general concepts to specific assessment methods. Chapter one is a general introduction to environmental management principles. Chapter two discusses conservation principles and their applications to environmental health. Chapters three and four explore ecosystem health, properties and analysis. Chapters five through eleven present different methods of analysis including Green Accounting, Clean Technology, Life Cycle Analysis, and Risk Assessment. Editor Sven Jorgensen closes the book with a sweeping summary. Jorgensen is a internationally published authority on the use and analysis of ecosystem models. His new book is a comprehensive guide for both students and professionals. A Systems Approach to the Environmental Analysis of Pollution Minimization is an invaluable contribution. Features
Author :
Publisher :
Page : 490 pages
File Size : 22,55 MB
Release : 2000
Category : Freshwater biology
ISBN :
Author : A.J. Zijpp
Publisher : BRILL
Page : 311 pages
File Size : 20,67 MB
Release : 2023-08-28
Category : Business & Economics
ISBN : 9086865968
"Throughout the last century, specialisation and intensification were buzz words for farmers in the Western world. However, this approach has not resulted in sustainable development as evidenced by the fact that scientists now need to create technologies to reduce negative impacts. In this book we demonstrate that an alternative exists. Case studies from Bangladesh, Thailand, and Vietnam show that integration and diversification increase both farm productivity and farmers’ incomes. By adopting a participatory approach, farmers and scientists identified a range of technologies that strengthen the positive impacts of integrated aquaculture-agriculture systems for the environment. This book is a collection of refereed papers on a controversial subject in agricultural development. Arguing that sustainability of fish culture in ponds needs a new paradigm - feed the pond to grow fish - two chapters focus on nutrient cycling in such systems. Another chapter makes the case for breeding Nile tilapia for resource poor farmers and presents practical options to avoid the pitfalls that arise from natural tilapia mating in low-input ponds. The book contains chapters on livelihood and development aspects and ends with a general discussion completing the picture of the integrated aquaculture-agriculture systems. Overall it composes a review which addresses one of the key issues of the new century: how to sustainably produce food without compromising environmental integrity."
Author : P.S. Teng
Publisher : Springer Science & Business Media
Page : 467 pages
File Size : 18,44 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9401154163
Systems approaches for agricultural development are needed to determine rational strategies for the role of agriculture in national development. Mathematical models and computer simulation provide objective tools for applying science to determine and evaluate options for resource management at field, farm and regional scales. However, these tools would not be fully utilizable without incorporating social and economic dimensions into their application. The second international symposium, Systems Approaches for Agricultural Development, held in Los Baños, 6-8 December 1995, fostered this link between the bio-physical sciences and the social sciences in the choice of keynote papers and oral presentations, a selection of which is included in this book. The book's contents further reflect how systems approaches have definitely moved beyond the research mode into the application mode. The large number and high quality of interdisciplinary research projects reported from different parts of the globe, to determine land use options that will meet multiple goals and yet sustain natural resource bases, is a key indicator of this `coming of age'. At the farm level, where trade-off decisions between processes and products (commodities) feature strongly, much progress is also evident in the development of systems-based tools for decision making. This book will be of particular interest to all agricultural scientists and planners, as well as students interested in multidisciplinary and holistic approaches for agricultural development.
Author :
Publisher :
Page : 384 pages
File Size : 18,44 MB
Release : 2000
Category : Philippines
ISBN :
