Download or read book Regional variation in surface properties of Norway spruce and Scots pine needles in relation to forest decline written by J N (Neil) Cape and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Decline and Ozone written by Heinrich Sandermann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea for this book arose in 1993, after the Free State of Bavaria through its Bayrisches Staatsministerium rur Landesentwicklung und Umweltfragen (Bavarian Ministry of Regional Development and the Environment) decided to discontinue both the Bavarian project management (PBWU) for forest decline research and the multidisciplinary field research on the Wank Mountain in the Alps near Garmisch. Forest decline through the action of ozone and other photooxidants was a main topic of the supported re search in the Alps and will be a topic of new investigations in the Bavarian Forest. Many interesting results were obtained, but the researchers involved have not had sufficient time to allow reliable conclusions to be drawn. It was therefore decided to ask inter national experts for contributions in order to summarize the best available evidence of a possible link between ozone and forest decline - a topic which has been studied in the USA since the late 1950s and in Europe since the early 1980s. The original idea of Waldsterben as an irreversible large-scale dieback of forests in Germany was soon recognized to be wrong (Forschungsbeirat 1989). However, the new criteria used for the official German and European damage inventories (loss or yel lowing of needles or leaves, tree morphology) indicate that per sistently high percentages of damaged spruce and pine remain, and there is an increasing percentage of damaged beech and oak, with a high proportion of biotic disease (Forschungsbeirat 1989; UN-ECE 1995).
Download or read book Biology and Ecology of Norway Spruce written by Mark G. Tjoelker and published by Springer Science & Business Media. This book was released on 2007-05-29 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a concise and comprehensive review of the biology, ecology, and management of Norway spruce. Written by 25 experts in the field, and richly illustrated, it integrates classic and contemporary literature. More than 2000 works are cited in the text, which highlights basic research and forestry practices in central and Eastern Europe. The huge range of topics covered includes the species’ morphology, its physiology and nutrition, and its ecology.
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2010 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Pollutants and the Leaf Cuticle written by Kevin E. Percy and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant leaves are covered by a thin, lipoidal, non-living membrane called the cuticle. Forming the interface between plants and the atmospheric environment, it presents an effective barrier to pollutant entry. The book provides a comprehensive review of air pollutant effects on the cuticle and covers the following thematic areas: - Cuticular physicochemical characteristics, physiological, regulatory, and protective roles. - Effects, mechanisms, and consequences of air pollutant interaction with leaf cuticles. - Non-anthropogenic and environmental influences on the cuticle and potential of the cuticle for biomonitoring and critical levels mapping. - New developments in experimental methodology and analytical techniques.
Download or read book Air Quality and Ecological Impacts written by Allan H. Legge and published by Elsevier. This book was released on 2009-04-01 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air Quality and Ecological Impacts reviews the characterization of air quality as it pertains to specific emission sources and their environmental effect. Since emissions from multiple sources impact the same location, a multidisciplinary approach is needed to relate atmospheric processes to terrestrial vegetation. As global industrial expansions continue, air quality is no longer governed by isolated point sources (e.g., a single coal-fired power plant), but by source clusters or complexes. To address these issues, atmospheric receptor models have been developed and are continually being improved. The benefits of any air quality control measures based on receptor modeling must be verified by assessing changes or bettering in environmental impacts. Until now, such an approach has not been well integrated and practiced. This book provides the needed concepts and methods in conducting the studies to establish cause-and-effect relationships under ambient conditions, which is valuable to policy makers both in industrialized and developing nations. - Offers approaches for identifying the emissions components from specific air pollution sources - Details methods for using pollutant accumulation in plants for ecological effects assessment - Establishes cause (air quality) and effect (plant responses) relationships under ambient conditions
Download or read book Proceedings of the Royal Society of Edinburgh written by and published by . This book was released on 1990 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1991 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Institute of Terrestrial Ecology written by and published by . This book was released on 1989 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Health written by John L. Innes and published by Oxford University Press, USA. This book was released on 1993 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book assesses the current state of knowledge about forest declines, particularly as they relate to air pollution. Many declines are shown to be unrelated to air pollution and, in other cases, the links between air pollution and the condition of the trees is extremely tenuous. Factors such as nutrient depletion due to past management practices and drought are shown to have had a major influence on the health of trees. In many cases, the evidence for a decline in tree condition is at best ambiguous, and much of the concern appears to have been generated by political and media interest rather than by a critical evaluation of the available data. A detailed examination of the comprehensive data collected in the British forest health monitoring program over the last five years indicates the complexity of the process involved and illustrates the dangers of taking data from a single year at face value. Many of the indices used to assess trees are of questionable value when compared over time or space, as their subjective nature precludes any reliable comparisons. Studies of annual increment and wood quality indicate that the international market for timber is unlikely to be affected in either the long or the short term.
Download or read book Acidic Deposition written by Royal Society of Edinburgh and published by . This book was released on 1991 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pathological and Regenerative Plant Anatomy written by Dr. Siegfried Fink and published by . This book was released on 1999 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Cuticles written by G. Kerstiens and published by Taylor & Francis. This book was released on 1996-10 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cuticle, together with its associated waxes, acts as a diffusion barrier against the uncontrolled loss of water and solutes from leaves. It forms a mechanical barrier against penetration by fungi and pests and communicates with them via chemical signa
Download or read book Acid Deposition written by and published by . This book was released on 1989 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Norway Spruce Conversion Options and Consequences written by Heinrich Spiecker and published by . This book was released on 2004 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up to the end of the 19th century, many European forests suffered from devastation and soil deterioration, which caused fears of timber shortage. In order to counteract this possible shortage, many forest areas were reforested with coniferous tree species, especially Norway spruce (Picea abies [L.] Karst). Consequently, coniferous forests (often Norway spruce forests), consisting of trees of the same age, were established on many sites naturally dominated by broadleaves. As a result, damages caused by storm, snow, ice, drought, insects, fungi and possibly soil degradation seemed to occur more frequently in these secondary Norway spruce forests than in forests consisting of species better adapted to the ambient conditions. Conversion of Norway spruce stands may reduce these risks and upgrade biodiversity and the genetic potential of forests. As the economic results of forestry, future wood markets and various other goods and services that are provided to society by forest ecosystems, are affected by present and future decision-making, all aspects of conversion must be well understood. EFI's Regional Project Centre, CONFOREST, is continuously striving to improve implementation of conversion projects by consolidation of the expertise available in all forestry disciplines. This book comprises the findings in all conversion-related areas aiming to consider ecosystem needs while ensuring availability of silvicultural methods and operational feasibility of their implementation. Simultaneously, the cost-effectiveness of conversion scenarios is analysed by forestry economists. Since a change in public perception and ecological awareness may cause policy makers to either or not endorse further conversion efforts, input by experts in forestry politics is also provided.
Download or read book Air Pollution and Multiple Stresses written by Roger Cox and published by . This book was released on 1996 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents proceedings of an international conference on the combined effects of air pollutants together with other aspects of global change on all levels within forest ecosystems. Topics of papers presented include: air pollutants and natural stresses on forests; effects of single pollutants such as ozone, sulphur dioxide, carbon dioxide, and nitrogen compounds; effects of pollutants in combination; edaphic factors and nutrient cycling; effects of acid deposition; and inciting or predisposing factors for forest decline.
Download or read book Biological Agricultural Index written by and published by . This book was released on 1990 with total page 2408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
