Overview

The threats posed by anthropogenic pollution of the environment have resulted in animated public debate about forest condition and growth. Therefore, research into forest condition and vitality has been one of the key areas in forest ecology throughout the 1980s and 1990s. The basic questions presented have been: - What changes are taking place in forests? - Why does forest condition vary, and why do trees appear to be suffering? - How can forest condition be maintained? This report covers forest condition and changes in environmental factors on the basis of the latest findings of Finnish research as well as research results in other countries. The synthesis is based on the monitoring of forest condition at the national level which started in 1985 in accordance with the international methodology, and on a number of long-term special cause-effect and silvicultural studies. In addition, scientific literature is widely reviewed.

Full Product Details

Author:   Eino Mälkönen
Publisher:   Springer
Imprint:   Springer
Edition:   2000 ed.
Volume:   65
Dimensions:   Width: 15.60cm , Height: 2.20cm , Length: 23.40cm
Weight:   1.610kg
ISBN:  

9780792362289

ISBN 10:   0792362284
Pages:   382
Publication Date:   31 March 2000
Audience:   College/higher education ,  Professional and scholarly ,  Postgraduate, Research & Scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   In Print  
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Table of Contents

Importance of forests in Finland.- Finland’s forest resources in 1989–1994 and changes compared to 1951.- Growth variation.- Climate change.- Weather conditions during 1980–1995 and tree damage directly attributable to weather.- Air pollutants Emissions, air quality and acidifying deposition.- Heavy metal loading.- Soil factors.- Tree tolerance, resistance and defence.- Tree nutrient status.- Air pollutants and frost-hardiness of conifer needles.- Effects of ozone on trees and forest insects.- Cellular and tissue changes in needles.- Crown condition.- Dynamics of defoliation, biotic and abiotic damage during 1986–1998.- Forest condition in relation to environmental factors.- Changes in abundance of some forest floor mosses.- Epiphytic lichens as indicators of air quality.- Abundance of epiphytic lichens in litterfall during 1967–1994.- Changes in lichen abundance and index of atmospheric purity during 1985–1995.- Structure and functioning of forest ecosystems.- Effects of acidic deposition on soil solution quality and nutrient leaching in forest soils.- Effects of acidic deposition on forest soil microbiology.- Fine roots and soil properties.- Dependence of tree annual diameter growth on weather factors.- Functioning of forest ecosystem as an indicator of environmental change.- Functioning of forest ecosystems under nitrogen loading.- Areas polluted by heavy metals.- Effects of heavy metal deposition on soil fertility.- Effects of heavy metals on soil microflora.- Response of understorey vegetation to heavy metal loading.- Crowberry (Empetrum nigrum L.), a copper-tolerant dwarf shrub.- Response of tree stands to heavy metal loading.- Variation in radial growth of Scots pines exposed to heavy metal and sulphur emissions from the Cu-Ni smelter at Monchegorsk,NW Russia.- Role of tree species in determining soil fertility.- Prescribed burning as a soil amelioration measure.- Improving forest condition by means of slow-release fertilisers.- Effects of fertilisation on soil microbes.- Liming of forest soils.- Effect of nutrient availability on pest resistance of trees.- VI. Forest Condition in Finland — Concluding Remarks.- Appendices.- Abbreviations for Finnish forest site types.- Author index.

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