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Author : Kenneth M. Chomitz,Kanta Kumari
Publisher : World Bank Publications
Page : 52 pages
File Size : 54,9 Mb
Release : 1996
Category : Electronic
ISBN : 8210379456XXX
Author : Chomitz
Publisher : Unknown
Page : 0 pages
File Size : 47,6 Mb
Release : 2013
Category : Electronic
ISBN : OCLC:1405279644
Author : Kenneth M. Chomitz
Publisher : Unknown
Page : 52 pages
File Size : 44,9 Mb
Release : 2016
Category : Electronic
ISBN : OCLC:1290704476
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 : Kenneth Chomitz
Publisher : Unknown
Page : 128 pages
File Size : 46,7 Mb
Release : 1999
Category : Electronic
ISBN : OCLC:1002907346
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 : Florencia Montagnini,Carl F. Jordan
Publisher : Springer Science & Business Media
Page : 312 pages
File Size : 51,5 Mb
Release : 2005-03-24
Category : Nature
ISBN : 3540237976
Importance pf tropical forests; characteristics of tropical forests; classification of tropical forests; deforestation in the tropics; management of tropical forests; plantatios and agroforestry systems; approaches for implementing sustainable management techniques.
Author : Roger D. Stone,Claudia D'Andrea
Publisher : Univ of California Press
Page : 330 pages
File Size : 50,6 Mb
Release : 2002-01-17
Category : Nature
ISBN : 0520936078
Tropical forests are vanishing at an alarming rate. This book, based on extensive international field research, highlights one solution for preserving this precious resource: empowering local people who depend on the forest for survival. Synthesizing a vast amount of information that has never been brought together in one place, Roger D. Stone and Claudia D'Andrea provide a clearly written and energizing tour of global efforts to empower community-based forest stewards. Along the way, they show the fundamental importance of tropical forest ecosystems and deepen our sense of urgency to save them for the benefit of billions of rural people in tropical and subtropical regions as well as for countless species of plants and animals. In their travels to research this book, the authors saw many remarkable examples of how proficient even the poorest local people can be in stabilizing and recovering formerly destitute forests. With engagingly written case studies from Thailand's Golden Triangle to Mindanao in the Philippines, from Indonesia, India, and Africa to Brazil, Mexico, and Central America, they introduce us to the communities and the individuals, the governments, the loggers, the agencies, and the local groups who vie for forest resources. Contrasting community-based efforts and traditional forest management with government and donor efforts, they discuss the many reasons why international institutions and national governments have been unable and unwilling to stem the accelerating loss of tropical forestland. This book argues we are paying a terrible price--politically, economically, and environmentally--for allowing tropical forests to be stripped. Community-based forestry is no panacea, but this book clearly shows its effectiveness as a management technique.
Author : Jill M. Blockhus
Publisher : IUCN
Page : 260 pages
File Size : 47,7 Mb
Release : 1992
Category : Nature
ISBN : 2831701015
At the meeting of the International Tropical Timber Organization held in Bali in 1990, ITTO adopted the target of ensuring that all tropical timber marketed internationally should, by the year 2000, come from forests that are managed sustainably. This study is an attempt to determine whether the member countries of the ITTO have a legal and administrative basis for managing their production forests in ways which will allow these forests to contribute to biological diversity conservation. It also attempts to assess the extent to which such management is already applied on the ground through member country studies. A set of guidelines on ways in which management of production forests could be improved is included.
Author : William F. Laurance,Carlos A. Peres
Publisher : University of Chicago Press
Page : 576 pages
File Size : 50,5 Mb
Release : 2006-10
Category : Nature
ISBN : 9780226470221
Publisher Description
Author : Florencia Montagnini,Carl F. Jordan
Publisher : Springer Science & Business Media
Page : 300 pages
File Size : 54,9 Mb
Release : 2005-12-12
Category : Technology & Engineering
ISBN : 9783540272441
Research in tropical forestry is confronted with the task of finding strategies to alleviate pressure on remaining forests, and techniques to enhance forest regeneration and restore abandoned lands, using productive alternatives that can be attractive to local human populations. In addition, sustainable forestry in tropical countries must be supported by adequate policies to promote and maintain specific activities at local and regional scales. Here, a multi-disciplinary approach is presented, to better the understanding of tropical forest ecology, as a necessary step in developing adequate strategies for conservation and management. The authors have long experience in both academic and practical matters related to tropical forest ecology and management.
Author : M. Smouts
Publisher : Springer
Page : 266 pages
File Size : 44,6 Mb
Release : 2003-05-29
Category : Political Science
ISBN : 9781403981851
Marie-Claude Smouts looks at the issue of rain forest depletion and global environmental policies. Beginning with how the issue entered the world stage in the 1980s despite alarms over the issue in the 1950s, Tropical Forests, International Jungle explores the complexities of what are tropical forests, what role they play not only in environmentalism but in trade, health care, and almost every facet of natural and social life for those living there and beyond. Although for most in the developed world tropical forests have gained a status of part of our world heritage, these forests are not really part of the global commons or a global public good. Developing nations maintain control over the forests within their borders and often use the forests as they see fit. The international system for mediating the issue is a fractured group of non-governmental organizations and transnational networks, often with competing views of how to manage tropical forests. Despite this seemingly grim picture, Smouts is optimistic. A changing world view toward forest depletion is influencing countries both North and South. Although forests will be used commercially, it is a dynamic process that should maintain them far into the future.
Author : Douglas Southgate
Publisher : Oxford University Press
Page : 190 pages
File Size : 47,7 Mb
Release : 1998-06-04
Category : Science
ISBN : 9780195355062
Attempts to halt the destruction of rain forests and other natural habitats in the tropics have met with little success. In particular, national parks, like those found in wealthy nations, have proven difficult to establish in Africa, Asia, and South and Central America. More often than not, people inhabiting areas designated for protection resist being told by outsiders that they must change how and where they live. Alternative approaches, frequently embodied in integrated conservation and development projects (ICDPs), are now being pursued. The goal is to address local communities' desires for improved standards of living while simultaneously meeting conservation objectives. Nature-based tourism and sustainable harvesting of forest products are the centerpieces of ICDPs and related initiatives. This book assesses the viability of conservation strategies predicated on the adoption of environmentally sound enterprises in and around threatened habitats. Drawing on research in Brazil, Costa Rica, Ecuador and Peru and on his extensive experience working in South and Central America and the Caribbean, the author demonstrates that it is rare for forest dwellers to derive much benefit from ecotourism, the extraction of timber and other commodities, or the collection of samples used in pharmaceutical research. Often these activities are simply unprofitable. Even when they are profitable, the benefits tend not to accrue locally, but instead are captured by outside firms and individuals who can provide important services like safe and reliable transportation. The author contends that human capital formation and related productivity-enhancing investment is the only sure path to economic progress and habitat conservation.
Author : Douglas DeWitt Southgate
Publisher : Oxford University Press, USA
Page : 190 pages
File Size : 45,6 Mb
Release : 1998
Category : Deforestation
ISBN : 9780195109962
It has proved hard to establish national parks in Africa, Asia, and South and Central America, where inhabitants are resistant to change. This text explores the alternatives of integrated conservation and development projects & related initiatives.
Author : Lykke E. Andersen
Publisher : Cambridge University Press
Page : 288 pages
File Size : 53,6 Mb
Release : 2002-12-12
Category : Business & Economics
ISBN : 052181197X
A multi-disciplinary team of authors analyze the economics of Brazilian deforestation using a large data set of ecological and economic variables. They survey the most up to date work in this field and present their own dynamic and spatial econometric analysis based on municipality level panel data spanning the entire Brazilian Amazon from 1970 to 1996. By observing the dynamics of land use change over such a long period the team is able to provide quantitative estimates of the long-run economic costs and benefits of both land clearing and government policies such as road building. The authors find that some government policies, such as road paving in already highly settled areas, are beneficial both for economic development and for the preservation of forest, while other policies, such as the construction of unpaved roads through virgin areas, stimulate wasteful land uses to the detriment of both economic growth and forest cover.
Author : Ariel E. Lugo,Carol Lowe
Publisher : Springer Science & Business Media
Page : 474 pages
File Size : 52,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461224983
Forestry professors used to remind students that, whereas physicians bury their mistakes, foresters die before theirs are noticed. But good institutions live longer than the scientists who contribute to building them, and the half-century of work of the USDA Forest Service's Institute of Tropical Forestry (ITF) is in plain view: an unprecedented corpus of accomplishments that would instill pride in any organization. There is scarcely anyone interested in current issues of tropical forestry who would not benefit from a refresher course in ITF's findings: its early collaboration with farmers to establish plantations, its successes in what we now call social forestry, its continuous improvement of nursery practices, its screening trials of native species, its development of wood-processing technologies appropriate for developing countries, its thorough analysis of tropical forest function, and its holistic approach toward conservation of endangered species. Fortunately, ITF has a long history of information exchange through teaching; like many others, I got my own start in tropical forest ecology fromjust such a course in Puerto Rico. And long before politicians recognized the global importance of tropical forestry, the ITF staff served actively as ambassadors of the discipline, visiting tropical coun tries everywhere to learn and, when invited to do so, to help solve local problems. It is a general principle of biogeography that species' turnover rates on islands are higher than those on continents. Inevitably, the same is true of scientists assigned to work on islands.
Author : Judith Gradwohl,Russell Greenberg
Publisher : Routledge
Page : 164 pages
File Size : 49,8 Mb
Release : 2013-11-05
Category : Law
ISBN : 9781134065059
The destruction of the tropical forest is one of the major problems of our time. Vast areas are rapidly becoming wastelands which support only a few tough weeds, perhaps some cattle, and the farms allowed to the poor. This book provides a vision of hope: in Latin America. Africa. And South East Asia, growing numbers of people are developing techniques specifically designed to promote the wise use and preservation of remaining forest lands. However, these grassroots strategies are often ignored in favour of grandiose schemes which inevitably fail. This pattern must be broken now or the tropical forests will be lost forever. Published in association with the Smithsonian Institution. Preface by Michael Robinson, Director, National Zoological Park. Smithsonian Institution Originally published in 1988