Описание: These guidelines outline the process for preparing a National Plan for Conservation and Sustainable Use of Farmers’ Varieties/Landraces, in support of national authorities seeking to develop a systematic approach to the management of these genetic resources. They focus on the common elements required to ensure a systematic, national approach to conservation and sustainable use of farmers’ varieties/landraces.
The cultivation of diverse farmers' varieties/landraces, which tend to be well-adapted and suited to local production systems, confers increased resilience for crop production. Unfortunately, many of these genetic resources have been replaced by modern cultivars in recent decades, resulting in a reduction in the number of varieties grown and/or loss of heterogeneity. Such losses make farming systems less resilient, especially to shocks from abiotic and biotic stresses.
These guidelines will contribute to addressing this continuing loss of diversity. They are a useful tool for development practitioners, researchers, students and policymakers who work on the conservation and sustainable use of these valuable resources.
Описание: Provides guidance on safe water use when preparing fresh produce and fish. The report is also a guide for water risk management. Water is a major input in food, from primary production through all stages in the food value chain to consumption.
Описание: A practical tool for implementing the sustainable food value chain framework with a focus on small-scale livestock producers, targeting an audience of project design teams and policymakers.
Автор: Scheierling, Susanne M. Treguer, David O. Название: Beyond crop per drop ISBN: 1464812985 ISBN-13(EAN): 9781464812989 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 4201.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
With growing water scarcity in many parts of the world and projections that indicate the need to increase agricultural production and, concurrently, agricultural water use, it is increasingly advocated to focus efforts on improving agricultural water productivity and efficiency--and thus achieve more crop per drop. Many international organizations concerned with water management are also promoting these efforts, and significant public and private investments are being made in both developed and developing countries. Yet some serious problems are associated with this approach. They include conceptual issues, the methods used for measuring agricultural water productivity and efficiency, and the application of these concepts and methods in different contexts--all of which influence the choice of interventions and the evaluation of their implementation. The report aims to shed further light on these issues: first, by clarifying some of the underlying concepts in the discussion of agricultural water productivity and efficiency; second, by reviewing and analyzing the available methods for assessing water productivity and efficiency, including single-factor productivity measures, total factor productivity indices, frontier methods, and deductive methods; and, third, by discussing their application and relevance in different contexts. As a background for this analysis, the report highlights the central role of water use in irrigated agriculture and its link with increasing water scarcity. An underlying framework of the analysis is the view of the water economy transitioning from an expansionary to a mature phase. The report further develops this framework to reflect water management issues in irrigated agriculture. The framework is then applied to make the case that, with increasing water scarcity, the ongoing efforts for improving agricultural water productivity and efficiency need to move beyond crop per drop approaches, because they are in many circumstances an insufficient and sometimes counterproductive attempt to adapt agricultural water management to a maturing water economy.
Описание: These safety guidelines and good practices aim to support governments, competent authorities and operators in minimizing the risk of fire and safely retaining firefighting water. They are intended to enhance existing practices and promote harmonized safety standards for firefighting water management and retention.
Описание: This book provides several comprehensive models of beef cattle production systems, focusing the Texas A&M herd simulation model and the Kentucky BEEF models in economic analysis. It examines the prospects of extending complex simulation models of animal production systems to cattle producers.
The demands placed on land, water, energy and other natural resources are exacerbated as the world population continues to increase together with the expectations of economic growth. This, combined with concerns over environmental change, presents a set of scientific, policy and management issues that are critical for sustainability.
Resource Accounting for Sustainability Assessment: The nexus between energy, food, water and land use offers an approach for multi-scale, integrated assessment of this nexus. It presents a comprehensive and original method of resource accounting for integrated sustainability assessments. The approach is illustrated with three detailed case studies: the islands of Mauritius, the Indian state of Punjab, and the energy economy of South Africa. The relationships between flows of goods, services and materials in these case studies offer valuable insights. The book provides a much needed quality control on the information used in deliberative processes about policy and planning activities.
This innovative book will be of interest to researchers, students and practitioners in the fields of sustainability science, international development, industrial ecology, sustainable resource management, geography and ecological economics.
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