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Author : William M. Ciesla,Marlene Diekmann,C. A. J. Putter
Publisher : Bioversity International
Page : 68 pages
File Size : 45,9 Mb
Release : 1996
Category : Eucalyptus
ISBN : 9789290431619
Author : Anonim
Publisher : Unknown
Page : 220 pages
File Size : 43,5 Mb
Release : 2003
Category : Eucalyptus
ISBN : MINN:31951D02988682G
Author : Anonim
Publisher : Unknown
Page : 782 pages
File Size : 42,8 Mb
Release : 1995
Category : Communicable diseases
ISBN : MINN:31951P011349349
Author : S. Mohan Jain,Pramod K. Gupta,R.J. Newton
Publisher : Springer Science & Business Media
Page : 538 pages
File Size : 52,5 Mb
Release : 1995-05-31
Category : Gardening
ISBN : 0792330706
The quality of human life has been maintained and enhanced for generations by the use of trees and their products. In recent years, ever rising human population growth has put tremendous pressure on trees and tree products; growing awareness of the potential of previously unexploited tree resources and environmental pollution have both accelerated development of new technologies for tree propagation, breeding and improvement. Biotechnology of trees may be the answer to solve the problems which cannot be solved by conventional breeding methods. The combination of biotechnology and conventional methods such as plant propagation and breeding may be a novel approach to improving and multiplying in large number the trees and woody plants. So far, plant tissue culture technology has largely been exploited in the propagation of ornamental plants, especially foliage house plants, by com mercial companies. Generally, tissue culture of woody plants has been recal citrant. However, limited success has been achieved in tissue culture of angiosperm and gymnosperm woody plants. A number of recent reports on somatic embryogenesis in woody plants such as Norway spruce (Picea abies), Loblolly pine (Pinus taeda), Sandalwood (Santalurn album), Citrus, Mango (Mangifera indica), etc. , offer a ray of hope of: a) inexpensive clonal propa gation for large-scale production of plants or "emblings" or "somatic embryo plants", b) protoplast work, c) cryopreservation, d) genetic transformation, and e) artificial or manufactured seed production.
Author : Wesley H. C. Wong
Publisher : Unknown
Page : 48 pages
File Size : 50,7 Mb
Release : 1969
Category : Forests and forestry
ISBN : MINN:31951D030096907
Author : Eric Tamale,Norman Jones,Idah Pswarayi-Riddihough
Publisher : World Bank Publications
Page : 68 pages
File Size : 42,7 Mb
Release : 1995-01-01
Category : Technology & Engineering
ISBN : 0821333992
Annotation World Bank Technical Paper No. 299.Describes the best possible forest technologies required for successful participatory farming, including choice of species farmers need for various end uses, good nursery practices, and postplanting tree management. The paper also describes various patterns of intercropping trees on farms and lists the species and families of trees commonly grown in Africa, Asia, and Latin America.
Author : A.K. Kandya
Publisher : I K International Pvt Ltd
Page : 388 pages
File Size : 53,6 Mb
Release : 2007-05-01
Category : Technology & Engineering
ISBN : 9789384588991
Forests are critical for sustainable development, environment and also for livelihood. They provide a wealth of goods and services that are essential for people's lives, cash income and green economy. Maintaining and enhancing our planet's forest resources is essential if we are to succeed in the global efforts to alleviate poverty, address water scarcity and biodiversity loss, and mitigate climate change. Culturally and historically, the intrinsic value of forests, and the spiritual and sacred use of forests have great importance to local communities and our cultural identity. This book on Sustainable Forestry: Emerging Challenges, written by experienced academicians, scientists and other researchers shows the present ongoing initiatives in the country to address sustainable forestry and its management. An estimated 230 million people in India rely on forests for their livelihoods to some degree, including some 60 million indigenous people and other forest-dwelling communities. While more than two billion people - the developing world's population use fodder, biomass fuels, mainly firewood, to cook food and large number of non-timber forest products for their day-to-day needs.
Author : N. EL Bassam
Publisher : Routledge
Page : 334 pages
File Size : 50,9 Mb
Release : 2013-10-31
Category : Technology & Engineering
ISBN : 9781134255665
Biomass currently accounts for about 15 per cent of the global primary energy consumption and is particularly important as an energy resource in developing countries. It will undoubtedly play an increasing role in the world's energy consumption. Which crops make up this large percentage of our energy resources? Where do they grow and what can be done to boost the levels of production? What impact does their cultivation have on the environment and development? The book starts with aspects of biomass accumulation, harvesting, transportation and storage, as well as conversion technologies for biofuels. This is followed by a look at the environmental impact and economic and social dimensions, including prospects for renewable energy. The book then goes on to cover all the main potential energy crops. For each main species 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. All those whose work involves biomass production, whether as agriculturalist, student, farmer, producer, planner or policy maker will find this book an invaluable reference work.
Author : Michael R. Ielmini,Thammineni Pullaiah
Publisher : John Wiley & Sons
Page : 1488 pages
File Size : 42,8 Mb
Release : 2021-04-21
Category : Technology & Engineering
ISBN : 9781119607014
Jedes Jahr breiten sich invasive gebietsfremde Arten in neue Ökosysteme aus. Die von den Eindringlingen verursachten Auswirkungen können sich in kürzester Zeit bemerkbar machen und verheerend sein. Das Thema der invasiven gebietsfremden Arten ist umfassend, komplex und auf verschiedenen Ebenen von globaler Bedeutung. Verschärft wird es durch die Globalisierung der Weltwirtschaft und den zunehmenden Handel, durch den die natürlichen Barrieren für den Transfer von Arten durchbrochen werden. Invasive gebietsfremde Arten bedrohen die weltweite Nahrungsmittelversorgung, die Qualität und Verfügbarkeit von Trinkwasser sowie die Stromproduktion und -versorgung. Zusammen mit den zusätzlichen Risiken durch den globalen Klimawandel ist die weltweite Homogenisierung von Pflanzen, Tieren und Mikroben ein wesentlicher Faktor für den sich verschlechternden Gesundheitszustand der Ökosysteme und die nachlassenden Ökosystemdienstleistungen überall auf der Welt. Um dieser Entwicklung entgegenzuwirken, besteht die dringende Notwendigkeit einer einheitlichen Ausrichtung von Regierungen, Kulturen und Programmen und einer besseren grenzüberschreitenden Koordination. Nur so lassen sich die vielfältigen Bedrohungen durch invasive gebietsfremde Arten für die Umwelt, die Wirtschaft und die Gesundheit von Pflanzen und Tieren sowie insbesondere die menschliche Gesundheit effektiv bekämpfen. Dieses vierbändige Werk ist das erste, das einen umfassenden Satz nützlicher Materialien zu den zentralen Themen bereitstellt, um die gesamte globale Bedrohung durch invasive gebietsfremde Arten sowie die vielfältigen Probleme in verschiedenen Teilen der Welt deutlich zu machen, und es enthält Material, in dem potenziell replizierbare Lösungen zur Überwindung dieser Bedrohungen aufgezeigt werden. Das Werk betont die Bedrohung durch invasive gebietsfremde Arten auch im Sinne eines globalen ?Aufrufs zum Handeln?. Invasive Arten kennen keine Grenzen. Daher hoffen wir, dass wir durch die Zusammenstellung von Material, das unterschiedliche wissenschaftliche und gesellschaftliche Standpunkte aus aller Welt berücksichtigt, sowie durch die Vermittlung von Erkenntnissen und Beispielen zu einer Vielzahl damit zusammenhängender Themen das globale Bewusstsein stärken und einheitliche nationale Reaktionen auf die Bedrohung durch invasive gebietsfremde Arten fördern können.
Author : Robert Elvon Nelson,Wesley H. C. Wong,Herbert Louis Wick
Publisher : Unknown
Page : 64 pages
File Size : 47,9 Mb
Release : 1968
Category : Afforestation
ISBN : SRLF:D0007490634
Author : Anonim
Publisher : CATIE
Page : 290 pages
File Size : 51,6 Mb
Release : 1992
Category : Forest insects
ISBN : 9977571325
Author : Anonim
Publisher : Unknown
Page : 114 pages
File Size : 41,5 Mb
Release : 1984
Category : Forests and forestry
ISBN : MINN:31951D00005186Q
Author : PJ Keane,GA Kile,FD Podger,BN Brown
Publisher : CSIRO PUBLISHING
Page : 576 pages
File Size : 43,5 Mb
Release : 2000-10-25
Category : Science
ISBN : 9780643098848
Over the last fifty years, there has been an increasing recognition that eucalypts are vulnerable to a wide range of diseases. They have suffered destructive epidemics, particularly of dieback caused by the cinnamon fungus in native forests, of foliar diseases and cankers in plantations, and of dieback of remnant trees on agricultural and grazing land. This has stimulated intensive research into the causes and management of diseases of the eucalypts. This work represents a comprehensive review of our current knowledge of the health and diseases of eucalypts.
Author : G.W. Findlay
Publisher : Springer Science & Business Media
Page : 274 pages
File Size : 43,6 Mb
Release : 2013-03-09
Category : Technology & Engineering
ISBN : 9789401727525
Much research has been done recently, and more is now in progress, to increase the effectiveness under tropical conditions of methods which have been developed in Europe for preserving timber. This book attempts to bring together the results of some of these studies. I have not attempted to cover the tropical zones of Central and South America as this would have extended the book beyond its limits. But I am grateful to the authors who have contributed chapters dealing with the different aspects and solutions of the problems of the tropical areas of the Old World. The International Research Group for Wood Preservation (The I.R.G.) at its annual meetings in different countries has provided a valuable forum for cooperation in this developing field. Anyone concerned with the subject would be well advised to study the publications issued by this group. Their office is at Drottning Kristinas vag 47C S - 11428 Stockholm, Sweden. Although timber is a renewable resource there is every reason why it should not be wasted through premature decay or the ravages of termites etc., when effective measures for its preservation are available and, if correctly applied, can greatly reduce the cost of maintaining timber structures.
Author : Jennifer Caroline Jenkins
Publisher : Unknown
Page : 52 pages
File Size : 46,6 Mb
Release : 2004
Category : Forest biomass
ISBN : MINN:31951D029747814
A database consisting of 2,640 equations compiled from the literature for predicting the biomass of trees and tree components from diameter measurements of species found in North America. Bibliographic information, geographic locations, diameter limits, diameter and biomass units, equation forms, statistical errors, and coefficients are provided for each equation, along with examples of how to use the database. The CD-ROM included with the paper version of this publication contains the complete database (Table 3) in spreadsheet format (Microsoft Excel 2002® with Windows XP®). The database files can also be viewed in both spreadsheet and pdf formats by directing your browser to the Global Change page at http://www.fs.fed.us/ne/global/pubs/books/index.html