Book Description
International in scope, this book provides a foundation of diverse ideas and approaches to explain complex problems of trees.
Author : Paul D. Manion
Publisher : American Phytopathological Society
Page : 260 pages
File Size : 12,4 MB
Release : 1992
Category : Nature
ISBN :
International in scope, this book provides a foundation of diverse ideas and approaches to explain complex problems of trees.
Author : William M. Ciesla
Publisher : Food & Agriculture Org.
Page : 108 pages
File Size : 23,34 MB
Release : 1994
Category : Nature
ISBN : 9789251035023
Author : Ernst-Detlef Schulze
Publisher : Springer Science & Business Media
Page : 486 pages
File Size : 35,8 MB
Release : 2012-12-06
Category : Science
ISBN : 3642613322
During the last decade, forest decline has become increasingly apparent. The decline in forest health was often reported to be associated with air pollution. The present study on Norway spruce stands in the Fichtelgebirge analyses various processes interacting within forest ecosystems. It covers transport and deposition of air pollutants, the direct effects of pollutants on above-ground plant parts, the responses of soil to acid rain, and the changing nutrient availability, and the accompanying effects on plant metabolism and growth. The role of fungi, microorganisms and soil animals in the decline of these stands is also assessed. The volume is concluded with a synthesis evaluation of the influence of different factors, and their interactions on forest decline.
Author : Reinhard F. Huettl
Publisher : Springer Science & Business Media
Page : 374 pages
File Size : 17,92 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 3642769950
Forest damage, forest decline, forest dieback - not related to biotic agents - is occurring in the Atlantic and Pacific regions. In Europe and Eastern North America this serious problem is considered to be, at least to some part, related to industrial air pollutants and their atmospheric conversion products, such as acid rain or ozone. Forest declines in the Pacific region have been attributed largely to natural causes involving forest dynamics, since air pollution and other negative anthropogenic influences are practically absent. Presented here are typical decline phenomena in the Pacific and Atlantic region, potential causes, effects and mitigation strategies, and the question whether there are any similarities on a functional or structural basis is addressed.
Author : M. Kaennel
Publisher : Springer Science & Business Media
Page : 474 pages
File Size : 15,34 MB
Release : 2012-12-06
Category : Science
ISBN : 3642795358
Forest decline became a matter of public and scientific concern in France in 1983 when conifers in the Vosges mountains were found to exhibit unusual crown deterioration. An impassioned controversy on a supposedly large scale forest health problem was then in full swing in Central Europe. A co-ordinated research programme entitled DEFORPA ("Deperissement des For~ts et Pollution AtmospMrique") was launched in 1984. This programme ran from 1984 to 1991 and a number of projects are still in progress. The Programme was sponsored by three French ministries (Enviroument, Agriculture and Forestry, Research and Technologyl), several state agencies, various regional authorities and the Commission of the European Communities (DO xn and DG VI). Initially, emphasis was solely laid on the understanding of forest decline in the mountainous areas - because damage was most obvious there - in relation to natural and man-made factors. Air pollution was given high but not overwhelming priority. Thus, the DEFORPA Programme was not in its essence a nation-wide assessment of air pollution effects, unlike a number of national acidification research programmes in Europe and North America. During. the programme, however, the areas of concern expanded. In particular, research into water acidification in the Vosges mountains was developed in parallel with the DEFORPA Programme, and possible eutrophication of the ground flora in northeastern France became the subject of new research.
Author : Lars Moseholm
Publisher : Nordic Council of Ministers
Page : 140 pages
File Size : 43,55 MB
Release : 1988
Category : Technology & Engineering
ISBN : 9788773032077
Miljørapport 1988:9
Author : United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mining, Forest Management, and Bonneville Power Administration
Publisher :
Page : 236 pages
File Size : 23,61 MB
Release : 1984
Category : Acid rain
ISBN :
Author :
Publisher :
Page : 36 pages
File Size : 10,56 MB
Release : 1986
Category : Forest site quality
ISBN :
Author : W. M. Ciesla
Publisher :
Page : 34 pages
File Size : 40,74 MB
Release : 1986
Category : Forest site quality
ISBN :
Author : Heinrich Sandermann
Publisher : Springer Science & Business Media
Page : 417 pages
File Size : 33,20 MB
Release : 2012-12-06
Category : Science
ISBN : 3642592333
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).