The Domestic Benefits of jjTropical Forests A Critical Review Emphasizing Hydrological Functions PDF Download
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Author: Kenneth M. Chomitz
Publisher: World Bank Publications
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Author: Kenneth M. Chomitz
Publisher: World Bank Publications
ISBN:
Category :
Languages : en
Pages : 52
Get Book Here
Book Description
Author: Kenneth M. Chomitz
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
The authors critically review the literature on the net domestic (within-country) economic benefits of protecting tropical forests, focusing on hydrological benefits and the production of nontimber forest products. (The review does not consider other important classes of benefits, including global benefits of all kinds, ecological benefits which do not have instrumental economic value, and the existence value of forests.) Their main conclusions: (1)The level of net domestic benefits from forest preservation is highly sensitive to the alternative land use and to local climatic, biological, geological, and economic circumstances. When the alternative use is agroforestry or certain types of tree crops, the preservation of natural forests may yield no instrumental domestic benefits. (2)The hydrological benefits from forest preservation are poorly understood and likely to be highly variable. They may also be fewer than popularly assumed: Deforestation has not been shown to be associated with large-scale flooding. Tropical deforestation is generally associated with higher, not lower, dry season flows. Although it is plausible that deforestation should affect local precipitation, the magnitude and even the direction of the effects are unknown, except in the special case of cloud forests that quot;harvestquot; passing moisture. The link between deforestation and downstream sediment damage is sensitive to the basic topography and geology. Where sediment transport is slow - as in large, low-gradient basins - downstream impacts may manifest themselves in the distant future, so that the net present value of damage is small. Steep basins near reservoirs or marine fisheries, on the other hand, can cause substantial damage if land cover is severely disturbed. But only a few pioneering studies have examined the economics of reservoir sedimentation, and improved models of both sediment transport and dam function are needed. (3) The most impressive point estimates of forest value based on nontimber forest products are often based on atypical cases of faulty analysis. Where domesticated or synthetic substitutes exist, the nontimber forest product-related rents for natural forests will usually be driven toward zero.
Author: Chomitz
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Kenneth Chomitz
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
May 1996 The authors critically review the literature on the net domestic (within-country) economic benefits of protecting tropical forests, focusing on hydrological benefits and the production of nontimber forest products. (The review does not consider other important classes of benefits, including global benefits of all kinds, ecological benefits which do not have instrumental economic value, and the existence value of forests.) Their main conclusions: (1)The level of net domestic benefits from forest preservation is highly sensitive to the alternative land use and to local climatic, biological, geological, and economic circumstances. When the alternative use is agroforestry or certain types of tree crops, the preservation of natural forests may yield no instrumental domestic benefits. (2)The hydrological benefits from forest preservation are poorly understood and likely to be highly variable. They may also be fewer than popularly assumed: Deforestation has not been shown to be associated with large-scale flooding. Tropical deforestation is generally associated with higher, not lower, dry season flows. Although it is plausible that deforestation should affect local precipitation, the magnitude and even the direction of the effects are unknown, except in the special case of cloud forests that harvest passing moisture. The link between deforestation and downstream sediment damage is sensitive to the basic topography and geology. Where sediment transport is slow - as in large, low-gradient basins - downstream impacts may manifest themselves in the distant future, so that the net present value of damage is small. Steep basins near reservoirs or marine fisheries, on the other hand, can cause substantial damage if land cover is severely disturbed. But only a few pioneering studies have examined the economics of reservoir sedimentation, and improved models of both sediment transport and dam function are needed. (3) The most impressive point estimates of forest value based on nontimber forest products are often based on atypical cases of faulty analysis. Where domesticated or synthetic substitutes exist, the nontimber forest product-related rents for natural forests will usually be driven toward zero.
Author: Malcolm Newson
Publisher: Routledge
ISBN: 1134111908
Category : Business & Economics
Languages : en
Pages : 474
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Book Description
Tracing the evolution of river basin management and the history of applied hydrology, Newson provides a systematic review of policy and practice, and argues for a sustainable approach to the changing environment of the world's rivers.
Author: Roger A. Sedjo
Publisher: Routledge
ISBN: 1351725912
Category : Social Science
Languages : en
Pages : 659
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Book Description
This title was first published in 2003. The 'Economics of Forestry' is a specialized subset of resource economics addressing a specific natural resource - the forest - which is usually a relatively long time period. Hence, forest economics has characteristics similar to nonrenewable resources but also has those of a renewable resource, in some cases approaching those of agriculture. This volume comprises some of the most significant journal essays in forest economics and forest policy. The International Library of Environmental Economics and Policy explores the influence of economics on the development of environmental and natural resource policy. In a series of twenty five volumes, the most significant journal essays in key areas of contemporary environmental and resource policy are collected. Scholars who are recognized for their expertise and contribution to the literature in the various research areas serve as volume editors and write essays that provides the context for the collection. Volumes in the series reflect three broad strands of economic research including 1) Natural and Environmental Resources, 2) Policy Instruments and Institutions and 3) Methodology. The editors, in their introduction to each volume, provide a state-of-the-art overview of the topic and explain the influence and relevance of the collected papers on the development of policy. This reference series provides access to the economic literature that has shaped contemporary perspectives on land use analysis and policy.
Author: N. El Bassam
Publisher: Routledge
ISBN: 1136543635
Category : Nature
Languages : en
Pages : 545
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Book Description
Biomass currently accounts for about fifteen per cent of global primary energy consumption and is playing an increasingly important role in the face of climate change, energy and food security concerns. Handbook of Bioenergy Crops is a unique reference and guide, with extensive coverage of more than eighty of the main bioenergy crop species. For each it gives a brief description, outlines the ecological requirements, methods of propagation, crop management, rotation and production, harvesting, handling and storage, processing and utilization, then finishes with selected references. This is accompanied by detailed guides to biomass accumulation, harvesting, transportation and storage, as well as conversion technologies for biofuels and an examination of the environmental impact and economic and social dimensions, including prospects for renewable energy. This is an indispensable resource for all those involved in biomass production, utilization and research.
Author:
Publisher: Newnes
ISBN: 0123919053
Category : Science
Languages : en
Pages : 697
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Book Description
Climate Vulnerability, Volume 1
Author: Stewart Maginnis
Publisher: Routledge
ISBN: 113656540X
Category : Nature
Languages : en
Pages : 273
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Book Description
At last a really useful book telling us how all the rhetoric about ecosystem approaches and sustainable forest management is being translated into practical solutions on the ground CLAUDE MARTIN, WWF INTERNATIONAL For too long, foresters have seen forests as logs waiting to be turned into something useful. This book demonstrates that forests in fact have multiple values, and managing them as ecosystems will bring more benefits to a greater cross-section of the public JEFFREY A. MCNEELY, CHIEF SCIENTIST, IUCN This book demonstrates that [ecosystem approaches and sustainable forest management] are neither alternative methods of forest management nor are they simply complicated ways of saying the same thing. They are both emerging concepts for more integrated and holistic ways of managing forests within larger landscapes in ways that optimize benefits to all stakeholders ACHIM STEINER AND IAN JOHNSON, FROM THE FOREWORD Recent innovations in Sustainable Forest Management and Ecosystem Approaches are resulting in forests increasingly being managed as part of the broader social-ecological systems in which they exist. Forests in Landscapes reviews changes that have occurred in forest management in recent decades. Case studies from Europe, Canada, the United States, Russia, Australia, the Congo and Central America provide a wealth of international examples of innovative practices. Cross-cutting chapters examine the political ecology and economics of forest management, and review the information needs and the use and misuse of criteria and indicators to achieve broad societal goals for forests. A concluding chapter draws out the key lessons of changes in forest management in recent decades and sets out some thoughts for the future. This book is a must-read for practitioners, researchers and policy makers concerned with forests and land use. It contains lessons for all those concerned with forests as sources of people's livelihoods and as part of rural landscapes. Published with IUCN and PROFOR
Author: Stewart Maginnis
Publisher: Earthscan
ISBN: 1849771383
Category : Nature
Languages : en
Pages : 266
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Book Description
'At last a really useful book telling us how all the rhetoric about ecosystem approaches and sustainable forest management is being translated into practical solutions on the ground? CLAUDE MARTIN, WWF INTERNATIONAL For too long, foresters have seen forests as logs waiting to be turned into something useful. This book demonstrates that forests in fact have multiple values, and managing them as ecosystems will bring more benefits to a greater cross-section of the public? JEFFREY A. MCNEELY, CHIEF SCIENTIST, IUCN This book demonstrates that ecosystem approaches and sustainable forest management] are neither alternative methods of forest management nor are they simply complicated ways of saying the same thing. They are both emerging concepts for more integrated and holistic ways of managing forests within larger landscapes in ways that optimize benefits to all stakeholders? ACHIM STEINER AND IAN JOHNSON, FROM THE FOREWORD Recent innovations in Sustainable Forest Management and Ecosystem Approaches are resulting in forests increasingly being managed as part of the broader social-ecological systems in which they exist. Forests in Landscapes reviews changes that have occurred in forest management in recent decades. Case studies from Europe, Canada, the United States, Russia, Australia, the Congo and Central America provide a wealth of international examples of innovative practices. Cross-cutting chapters examine the political ecology and economics of forest management, and review the information needs and the use and misuse of criteria and indicators to achieve broad societal goals for forests. A concluding chapter draws out the key lessons of changes in forest management in recent decades and sets out some thoughts for the future. This book is a must-read for practitioners, researchers and policy makers concerned with forests and land use. It contains lessons for all those concerned with forests as sources of people's livelihoods and as part of rural landscapes. Published with IUCN and PROFOR
