Possible Effects of Intensive Harvesting on Continuous Productivity of Forest Lands
Possible Effects of Intensive Harvesting on Continuous Productivity of Forest Lands

Author: Canada. Forestry Canada. Maritimes Region

Publisher: Fredericton, N.B. : Forestry Canada - Maritimes

Published: 1988

Total Pages: 26

ISBN-13: 9780662164159

DOWNLOAD EBOOK

Intensive (whole-tree) harvesting of natural forest stands is widespread in the Maritime provinces. In some cases, the goal of whole-tree harvesting is to increase usable biomass, but often foliage and branch components are discarded at the landing site. This report examines the possible effects of whole-tree harvesting on long-term site productivity, and particularly on soil fertility. The report evaluates published data collected from different parts of the world concerning potential decline in soil fertility resulting from the loss of organic matter and base cations caused by different harvesting methods. Biomass and the amount of base cations that would be removed both by conventional and whole-tree harvesting are calculated. Published data from different stands in New Brunswick and Nova Scotia were used to examine the effect of species and site quality on base cation losses and the potential increase in soil acidification which would result from whole-tree harvesting. The consequences of high base cation losses, especially from the infertile acid soils of the region on long-term interfile acid soils of the region on long-term site productivity are discussed.

Browsing Science Research at the Federal Level in Canada
Browsing Science Research at the Federal Level in Canada

Author: Brian B. Wilks

Publisher: University of Toronto Press

Published: 2004-01-01

Total Pages: 664

ISBN-13: 9780802088116

DOWNLOAD EBOOK

Wilks provides a historical background, list of publications, and description of activities for most of the major science initiatives undertaken at the federal level. He surveys a wide range of government documents and monographic and serial science collections used by both faculty and students.

Impacts of Forest Harvesting on Long-Term Site Productivity
Impacts of Forest Harvesting on Long-Term Site Productivity

Author: W.J. Dyck

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 381

ISBN-13: 9401112703

DOWNLOAD EBOOK

The International Energy Agency Bioenergy Agreement was initiated as the Forestry Energy Agreement in 1978. It was expanded in 1986 to form the Bioenergy Agreement. Since that time the Agreement has thrived with some fifteen countries (Austria, Belgium, Canada, Denmark, Finland, Italy, Japan, Netherlands, New Zealand, Norway, Sweden, Switzerland, United Kingdom, United States and the CEC) currently being signatories. The objective of the Agreement is to establish increased programme and project cooperation between the participants in the field of bioenergy. The environmental consequences of intensive forest harvesting have been the subject of intense interest for the Agreement from its initiation. This interest was formulated as a Cooperative Project under the Forestry Energy Agreement in 1984. It developed further under each of the subsequent three-year Tasks of the Bioenergy Agreement (Task III, Activity 3 "Nutritional consequences of intensive forest harvesting on site productivity", Task VI, Activity 6 "Environmental impacts of harvesting" and more recently Task IX, Activity 4 "Environmental impacts of intensive harvesting". The work has been supported by five main countries from within the Bioenergy Agreement: Canada, New Zealand, Sweden, UK, and USA. The continued work has resulted in a significant network of scientists work ing together towards a common objective - that of generating a better under standing of the processes involved in nutrient cycling and the development of management regimes which will maintain or enhance long term site productivity.

Impacts of Various Levels of Biomass Removals on the Structure, Function, and Productivity of Black Spruce Ecosystems
Impacts of Various Levels of Biomass Removals on the Structure, Function, and Productivity of Black Spruce Ecosystems

Author: Alan G. Gordon

Publisher: Sault Ste. Marie : Ontario Ministry of Natural Resources

Published: 1993

Total Pages: 34

ISBN-13:

DOWNLOAD EBOOK

A team of scientists was charged with the task of designing and implementing studies to determine the impacts of full-tree harvesting on the long-term site productivity of black spruce and jack pine ecosystems. This report details the protocols required to study the complexities of nutrient cycling, nutrient loss after disturbance, and post-disturbance recovery of the harvested black spruce sites, including experimental design, site selection, harvesting treatments, and sampling procedures.

New and Renewable Energy Technologies for Sustainable Development
New and Renewable Energy Technologies for Sustainable Development

Author: Naim Afgan

Publisher: CRC Press

Published: 2020-12-18

Total Pages: 506

ISBN-13: 1000151328

DOWNLOAD EBOOK

The International Conference on New and Renewable Energy Technologies for Sustainable Development held in Ponta Delgada, Azores (2002), Portugal, has provided technology specialists and hardware developers with the opportunity to discuss, review and demonstrate the research directions, the design methodologies, and the production techniques leading to cost- effective energy technologies for sustainable development. This dialog provides the context for more detailed technical presentations and panel discussions on energy systems, renewable resource exploitation, and the engineering design and optimisation for minimum resource consumption. The papers included in this volume are selected from those presented at the conference reflecting to present the state-of-the-art developments in the field. The selection of papers presented in this volume has enlightened various fields of scientific and economic development which should merge efforts in the understanding of the sustainable development concept and technological implications. The book will be of particular interest to engineering practitioners, product developers, researchers, and also economists, political scientists and government administrators exploring the multifaceted relationship between renewable energy technologies and sustainable development. Keynote lectures frame the technical and policy issues confronting the sustainable development movement and enrich the dialog between various segments of the community.