Aquatic Productivity
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Aquatic Productivity
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Author : W. D. Russell-Hunter
language : en
Publisher: Macmillan College
Release Date : 1970
Aquatic Productivity written by W. D. Russell-Hunter and has been published by Macmillan College this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Science categories.
This book relates some fundamental aspects of biological oceanography and freshwater biology to global aspects of the future protein nutrition of man and to our understanding of the processes of evolution. Seasonal and other factors controlling organic productivity in temperate oceans are outlined, and more unusual trophic features are considered. Methods for future exploitation of the oceans--particularly through sea-farming--are discussed and critically assessed. The finite nature of the oceans' resources is stressed. Energetics of food chains, the dynamics of exploited fish stocks, and the biogeochemistry of organic cycles are clearly explained and examined.--
Water Resources Research Catalog
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Author :
language : en
Publisher:
Release Date : 1966
Water Resources Research Catalog written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Water resources development categories.
Algae Abstracts
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Author : Office of Water Resources Research Staff
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Algae Abstracts written by Office of Water Resources Research Staff and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Algae Abstracts is the first in a series of bibliographies on water re sources and pollution published by IFI/ Plenum Data Corporation in cooperation with the Water Resources Scientific Information Center (WRSIC). It is produced wholly from the information base compris ing material abstracted and indexed for Selected Water Resources Abstracts. The bibliography is divided into volumes according to the publication dates of the source documents. Volume 1 contains 569 abstracts cov ering publication dates up to and including 1969; Volume 2 contains 730 abstracts covering the years 1970 to 1972. The material included in this bibliography represents computer selections based on the presence of a form of the word "alga" somewhere in the referenced citation. Substantively, the material typifies WRSIC's "centers of com petence" approach to information support of the Office of Water Re sources Research (OWRR) of the Department of the Interior. Most of the references in this bibliography are the work of the center of competence on eutrophication at the University of Wisconsin. The indexes refer to the WRSIC accession number, which follows each abstract. The Significant Descriptor Index is made up of a fraction of the total descriptors and identifiers by which each paper has been indexed. It represents weighted terms that best describe the informa tion content; this status is indicated by the asterisks which precede them. The General Index includes all the remaining descriptors and identifiers by which each paper in this bibliography has been indexed.
Understanding Climate Change Impacts On Crop Productivity And Water Balance
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Author : S. K. Jalota
language : en
Publisher: Academic Press
Release Date : 2018-02-19
Understanding Climate Change Impacts On Crop Productivity And Water Balance written by S. K. Jalota and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-19 with Science categories.
Understanding Climate Change Impacts on Crop Productivity and Water examines the greenhouse gas emissions and their warming effect, climate change projections, crop productivity and water. The book explores the most important greenhouse gases that influence the climate system, technical terms associated with climate projections, and the different mechanisms impacting crop productivity and water balance. Adaptive and mitigative strategies are proposed to cope with negative effects of climate change in particular domains. This book will help researchers interested in climate change impacts on the atmosphere, soil and plants. - Uncovers links between climate change and its impact on crop and water outputs - Integrates information on greenhouse gas cycles and mathematical equations into climate/crop models for analysis and seasonal prediction systems - Provides strategies for efficient resource management and sustainable crop production in future - Helps researchers interested in climate change impacts on the atmosphere, soil and plants
Periphyton
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Author : M. E. Azim
language : en
Publisher: CABI
Release Date : 2005-11-18
Periphyton written by M. E. Azim and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-11-18 with Technology & Engineering categories.
The first comprehensive monograph on periphyton, this book contains contributions by scientists fromaround the globe. Multi-disciplinary in nature, it covers both basic and applied aspects of periphyton,and is applicable worldwide in natural, extensive and intensive managed systems.Periphyton, as described in this book, refers to the entire complex of attached aquatic biota on submergedsubstrates, including associated non-attached organisms and detritus. Thus the periphyton communitycomprises bacteria, fungi, protozoa, algae, zooplankton and other invertebrates. Periphyton is importantfor various reasons: as a major contributor to carbon fixation and nutrient cycling in aquatic ecosystems;as an important source of food in aquatic systems; as an indicator of environmental change. It can alsobe managed to improve water quality in lakes and reservoirs; it can greatly increase aquaculture production;it can be used in waste water treatment.The book provides an international review of periphyton ecology, exploitation and management. Theecology part focuses on periphyton structure and function in natural systems. The exploitation part coversits nutritive qualities and utilization by organisms, particularly in aquaculture. The final part considersthe use of periphyton for increasing aquatic production and its effects on water quality and animal healthin culture systems. This book will help scientists and entrepreneurs further understand the ecology andproduction of aquatic systems and venture into new and promising areas.
Water Productivity In Agriculture
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Author : J. W. Kijne
language : en
Publisher: CABI
Release Date : 2003
Water Productivity In Agriculture written by J. W. Kijne and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Crops and water categories.
First title in a major new seriesAddresses improving water productivity to relieve problems of scarcity and competition to provide for food and environmental securityDraws from scientists having a multitude of disciplines to approach this important problemIn a large number of developing countries, policy makers and researchers are increasingly aware of the conflicting demands on water, and look at agriculture to be more effective in its use of water. Focusing on both irrigated and rain-fed agriculture, this book gives a state of the art review of the limits and opportunities for improving water productivity in crop production. It demonstrates how efficiency of water use can be enhanced to maximize yields. The book represents the first in a new series of volumes resulting from the Comprehensive Assessment of Water Management in Agriculture, a research program conducted by the CGIAR's Future Harvest Centres, the Food and Agriculture Organization of the United Nations and partners worldwide. It will be of significant interest to those working in areas of soil and crop science, water management, irrigation, and development studies.
Water For Food Water For Life
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Author : David Molden
language : en
Publisher: Routledge
Release Date : 2013-07-23
Water For Food Water For Life written by David Molden and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-23 with Law categories.
Managing water resources is one of the most pressing challenges of our times - fundamental to how we feed 2 billion more people in coming decades, eliminate poverty, and reverse ecosystem degradation. This Comprehensive Assessment of Water Management in Agriculture, involving more than 700 leading specialists, evaluates current thinking on water and its interplay with agriculture to help chart the way forward. It offers actions for water management and water policy - to ensure more equitable and effective use. This assessment describes key water-food-environment trends that influence our lives today and uses scenarios to explore the consequences of a range of potential investments. It aims to inform investors and policymakers about water and food choices in light of such crucial influences as poverty, ecosystems, governance, and productivity. It covers rainfed agriculture, irrigation, groundwater, marginal-quality water, fisheries, livestock, rice, land, and river basins. Ample tables, graphs, and references make this an invaluable work for practitioners, academics, researchers, and policymakers in water management, agriculture, conservation, and development. Published with IWMI.
Anadromous Fish Agreements And Habitat Conservation Plans For Wells Rocky Reach And Rock Island Hydroelectric Projects
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Author :
language : en
Publisher:
Release Date : 2002
Anadromous Fish Agreements And Habitat Conservation Plans For Wells Rocky Reach And Rock Island Hydroelectric Projects written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Anadromous fishes categories.
Accounting For Livestock Water Productivity How And Why
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Author : Drastig, K., Vellenga, L., Qualitz, G., Singh, R., Pfister, S., Boulay, A.-M., Wiedemann, S., Prochnow, A., Chapagain, A., De Camillis, C., Opio, C. & Mottet, A.
language : en
Publisher: Food & Agriculture Org.
Release Date : 2021-01-22
Accounting For Livestock Water Productivity How And Why written by Drastig, K., Vellenga, L., Qualitz, G., Singh, R., Pfister, S., Boulay, A.-M., Wiedemann, S., Prochnow, A., Chapagain, A., De Camillis, C., Opio, C. & Mottet, A. and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-22 with Technology & Engineering categories.
The assessment of water productivity in livestock supply chains has a critical role to play in developing productive and sustainable food production systems worldwide. In particular, the evaluation of water productivity improvement options is key to addressing growing food demand and the projected impacts of climate change under conditions where the availability of land and water resources is increasingly limited. In this report, we review current applications of water productivity analysis in livestock supply chains. To do so, we analysed 50 livestock water productivity studies carried out in various regions of the world from 1993 to the present time. We reviewed the assessment goals, system boundaries, methodological approaches, water flows, modelling tools, databases, livestock species and the main findings in each of the studies. We found that there was no consistency in the methods and approaches used to assess water productivity in livestock production chains. The studies varied widely in terms of their assessment goals, methodology, and the sources of water used for the analysis. The main methodological differences were the inclusion or exclusion of background processes, such as water input and the treatment of precipitation in accounting for water use in livestock production processes. Another key issue was the missing uncertainty assessment, which can be classified as input data uncertainty or model uncertainty, as well as choice uncertainties. The review recommends the further development of guidelines that ensure a consistent and coordinated application of water productivity analysis of livestock production systems world-wide.
Enhancing Water And Food Security Through Improved Agricultural Water Productivity
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Author : Tafadzwanashe Mabhaudhi
language : en
Publisher: Springer Nature
Release Date : 2025-05-14
Enhancing Water And Food Security Through Improved Agricultural Water Productivity written by Tafadzwanashe Mabhaudhi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-05-14 with Technology & Engineering categories.
This open-access edited book provides a synthesis of knowledge on Water Productivity (WP) and its role in addressing global challenges related to water and food insecurity, as well as climate change. It explores how increasing WP can contribute to achieving several Sustainable Development Goals (SDGs) in the global South, with a focus on SDG 2, 6, and 12. The volume connects WP with emerging approaches such as the water-energy-food nexus, sustainable food systems, and the circular economy. It features case studies, critical analyses, and meta-analyses that bridge the science-policy-practice interface. The book also delves into WP's relation to global priorities, policies, and the empowerment of vulnerable communities, highlighting the non-negotiable rights to water and food. Governance, policies, and institutions are discussed in the context of enhancing WP in farmer-led irrigation and scaling WP technologies. The book also covers emerging methods for determining WP, assessing linkages to nutrition, health, and well-being, and integrating climate change adaptation and mitigation strategies. This is a guide for regional and international experts, professionals, and scholars interested in agricultural water management in the global south. The book has the potential to inform multi-regional and sectoral policies, particularly in Africa, and contribute to sustainable development through better resource management.