Sampling Methodology for Studying Boreal Post-Fire Residual Stand Structure with High Resolution Aerial Photography and Field Plots
Sampling Methodology for Studying Boreal Post-Fire Residual Stand Structure with High Resolution Aerial Photography and Field Plots

Author: Robert Gordon Routledge

Publisher:

Published: 2011-07

Total Pages: 59

ISBN-13: 9781424954445

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This report documents the use of high resolution aerial photography as an alternative to traditional field sampling methods for assessing post-fire residual structure. High resolution photography (HRP), also termed large scale photography (LSP), refers to aerial photographs interpreted at scales of 1:25,000 or larger. Eleven fires were selected for sampling across boreal Ontario in 2005. Within fires, HRP was used to sample residual structure, i.e., trees, snags, and downed wood, in point samples of 0.05 ha circular points within one to four months post-fire ignition. Fifty field plots were established in four of the sample fires for error assessment of photo-interpretation and to allow short-term monitoring of changes in post fire residual structure. Methods used to select fires, capture and interpret sample photographs, and establish and assess field sample plots are described. The two sampling methods are compared in terms of feasibility and cost--Document.

An Assessment of Tree, Snag and Downed Wood Residuals in Boreal Fires in Relation to Ontario's Policy Directions for Emulating Natural Forest Disturbance
An Assessment of Tree, Snag and Downed Wood Residuals in Boreal Fires in Relation to Ontario's Policy Directions for Emulating Natural Forest Disturbance

Author: Ajith Perera

Publisher:

Published: 2008

Total Pages: 72

ISBN-13:

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Due to residual tree mortality, the complement of snag and downed wood residuals increased in time. After three years, abundance of large diameter residual trees was very low, and congruent with directions provided in the NDPE guide for retaining residual trees post-harvest. Local fire intensity appeared to be the most important global determinant of occurrence of residual trees, but with an inverse relationship. Our results do not support the hypotheses that pre-burn forest cover and site conditions are reliable global predictors of residual tree occurrence."--Abstract

What Happens to Tree Residuals in Boreal Forest Fires and what Causes the Changes?
What Happens to Tree Residuals in Boreal Forest Fires and what Causes the Changes?

Author: Ajith Perera

Publisher:

Published: 2011

Total Pages: 36

ISBN-13:

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This report details a study where temporal changes in tree and snags residuals were monitored annually following four boreal fires in Ontario using 50 sample plots. The goal was to examine the changes in residual trees and snags during the immediate post fire period in the boreal forest, where natural fire disturbances are common.--Document.

A Proposed Method to Rank the Intensity of Boreal Forests Fires in Ontario Using Post-fire High-resolution Aerial Photographs
A Proposed Method to Rank the Intensity of Boreal Forests Fires in Ontario Using Post-fire High-resolution Aerial Photographs

Author: T. Smith

Publisher:

Published: 2008

Total Pages: 36

ISBN-13:

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Fire intensity is a crucial descriptor of fire behaviour that may also be an important determinant of many types of ecological dynamics. However, fire intensity has proven challenging to measure directly. Indirect estimates of fire intensity are often confounded with the ecological effects of the fire, precluding further study of the relationships between intensity and population or community dynamics. In this report, the authors describe a novel method for estimating the intensity of fires in the boreal forest of Ontario using high resolution imagery taken soon after fire. This method relies on an empirical relationship between the branch structure of fire-killed trees (crown fraction burned) and fire intensity rankings provided by the Canadian Forest Fire Behaviour Prediction System (FBP) and its field guide for fire managers. The results of the application of this method to 660 high resolution aerial photography sample plots, each 25 m in diameter, dispersed among 11 fires that occurred in the boreal forest of Ontario in 2005 are described.--Document.

Fire Effects on Soil Properties
Fire Effects on Soil Properties

Author: Paulo Pereira

Publisher: CSIRO PUBLISHING

Published: 2019-02-01

Total Pages: 721

ISBN-13: 1486308155

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Wildland fires are occurring more frequently and affecting more of Earth's surface than ever before. These fires affect the properties of soils and the processes by which they form, but the nature of these impacts has not been well understood. Given that healthy soil is necessary to sustain biodiversity, ecosystems and agriculture, the impact of fire on soil is a vital field of research. Fire Effects on Soil Properties brings together current research on the effects of fire on the physical, biological and chemical properties of soil. Written by over 60 international experts in the field, it includes examples from fire-prone areas across the world, dealing with ash, meso and macrofauna, smouldering fires, recurrent fires and management of fire-affected soils. It also describes current best practice methodologies for research and monitoring of fire effects and new methodologies for future research. This is the first time information on this topic has been presented in a single volume and the book will be an important reference for students, practitioners, managers and academics interested in the effects of fire on ecosystems, including soil scientists, geologists, forestry researchers and environmentalists.

Ontario Forest Research Institute Publications 2006-2010
Ontario Forest Research Institute Publications 2006-2010

Author:

Publisher:

Published: 2011

Total Pages: 80

ISBN-13:

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"This bibliography includes a list and descriptions of the content of publications written or co-authored by staff of the Ontario Ministry of Natural Resources' Ontario Forest Research Institute between 2006 and 2010. During this five-year period, over 150 publications were produced by the institute's 14 research scientists, including a book, 83 journal articles, 31 reports, 10 technical notes, 5 newsletters, and 11 papers/summaries in conference/ workshop proceedings. The overall focus of the publications is forest resource management-related research and practice. Topical areas and scales of investigation are diverse and include natural disturbance regimes and landscape dynamics; carbon budgets and effects of climate change on forests; and silviculture studies on site preparation, tree improvement, vegetation management, growth and yield, disease management, and harvesting in conifer, mixedwood, and hardwood forests. Author and subject indexes are provided."--Document.

Permafrost Ecosystems
Permafrost Ecosystems

Author: Akira Osawa

Publisher: Springer Science & Business Media

Published: 2010-01-04

Total Pages: 507

ISBN-13: 1402096933

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Drawing from a decade-long collaboration between Japan and Russia, this important volume presents the first major synthesis of current knowledge on the ecophysiology of the coniferous forests growing on permafrost at high latitudes. It presents ecological data for a region long inaccessible to most scientists, and raises important questions about the global carbon balance as these systems are affected by the changing climate. Making up around 20% of the entire boreal forests of the northern hemisphere, these ‘permafrost forest ecosystems’ are subject to particular constraints in terms of temperature, nutrient availability, and root space, creating exceptional ecosystem characteristics not known elsewhere. This authoritative text explores their diversity, structure, dynamics and physiology. It provides a comparison of these forests in relation to boreal forests elsewhere, and concludes with an assessment of the potential responses of this unique biome to climate change. The book will be invaluable to advanced students and researchers interested in boreal vegetation, forest ecology, silviculture and forest soils, as well as to researchers into climate change and the global carbon balance.