Download or read book A Proposed Method to Rank the Intensity of Boreal Forests Fires in Ontario Using Post fire High resolution Aerial Photographs written by T. Smith and published by . This book was released on 2008 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Forest Research Information Paper written by and published by . This book was released on 2006 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ontario Forest Research Institute Publications 2006 2010 written by and published by . This book was released on 2011 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.
Download or read book An Assessment of Tree Snag and Downed Wood Residuals in Boreal Fires in Relation to Ontario s Policy Directions for Emulating Natural Forest Disturbance written by Ajith Perera and published by . This book was released on 2008 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Forest Research Report written by and published by . This book was released on 2007 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling Methodology for Studying Boreal Post Fire Residual Stand Structure with High Resolution Aerial Photography and Field Plots written by Robert Gordon Routledge and published by . This book was released on 2011-07 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Sampling Methodology for Studying Boreal Post fire Residual Stand Structure with High Resolution Aerial Photography and Field Plots written by Robert Gordon Routledge and published by . This book was released on 2007 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Guide to the Canadian Forest Fire Behaviour Prediction FBP System written by Stephen William Taylor and published by Canadian Forest Service, Northern Forestry Centre. This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Canadian Forest Fire Behavior Prediction (FBP) system is a systematic method for assessing wildland fire behaviour potential. Presented in tabular format, this guide provides a simplified version of the system and is designed to assist field staff in making approximations of FBP System outputs.
Download or read book What Happens to Tree Residuals in Boreal Forest Fires and what Causes the Changes written by Ajith Perera and published by . This book was released on 2011 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post Fire Vegetation Residual Patches in Boreal Wildfire Scars written by Yikalo Hayelom Araya and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weather Guide for the Canadian Forest Fire Danger Rating System written by B. D. Lawson and published by . This book was released on 2008 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: This weather guide includes detailed specifications for locating and instrumenting fire weather stations, taking weather observations, and overwintering the Drought Code component of the FWI System. The sensitivity of the FWI System components to weather elements is represented quantitatively. The importance of weather that is not directly observable is discussed in the context of fuel moisture and fire behavior. Current developments in the observation and measurement of fire weather and the forecasting of fire danger are discussed, along with the implications for the reporting of fire weather of increasingly automated fire management information systems.
Download or read book Canadian Wildland Fire Strategy written by Peter L. Fuglem and published by . This book was released on 2006 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In September 2004, the Canadian Council of Forest Ministers established a federal, provincial, and territorial task group of assistant deputy ministers (ADMs) and commissioned the development of the Canadian Wildland Fire Strategy (CWFS). The ADMs created an intergovernmental team of analysts, experienced fire managers, and researchers, known as the CWFS Core Team, to consult with Canadian and international experts, collate information, conduct analyses, and present the findings. This team was directed to assess the current state of wildland fire management in Canada, examine the key influences and trends, and identify possible desired future states and how they could be achieved. This publication comprises a collection of nine reports written by the CWFS Core Team members and their associates. Collectively these papers include syntheses, analyses, and perspective articles that address a variety of the social, economic, and biophysical aspects of wildland fire and its management as well as policy, science, and operational issues in Canada."--Pub. desc.
Download or read book Advancing Wildfire Fuel Mapping and Burn Severity Assessment in Alaskan Boreal Forest Using Multi sensor Remote Sensing written by Christopher William Smith and published by . This book was released on 2021 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildfires in Alaska have been increasing in frequency, size, and intensity putting a strain on communities across the state, especially remote communities lacking firefighting infrastructure to address large scale fire events. Advances in remote sensing techniques and data provide an opportunity to generate high quality map products that can better inform fire managers to allocate resources to areas of most risk and inform scientists how to predict and understand fire behavior. The overarching goal of this thesis is therefore to build insight into methods that can be applied to create highly detailed fire statistic map products in Alaska. To address this overarching goal we tested several methods for generating fire fuel, burn severity, and wildfire hazard maps that were validated using data collected in the field. Applying the Random Forest classifier on Airborne Visible/ Infrared Imaging Spectrometer Next-Generation (AVIRIS-NG) hyperspectral data we were able to produce a fire fuel map with an 81% accuracy. We then tested two supervised machine learning classifiers, post fire standard spectral indices, and differenced spectral indices for their performance in assessing burn severity. We found that supervised machine learning classifiers outperform other algorithms when there is an adequate amount of training data. Using the support vector machine and random forest classifiers we were able to generate burn severity maps with 83% accuracy at the 2019 Shovel Creek Fire. Lastly, we looked for a relationship between burn severity and environmental conditions prevalent during the Shovel Creek and Nugget Creek fires. Overall, these products can be used by fire managers and scientists to assess fire risk, limit the damages caused by wildfires through adequate resource allocation, and provide the guidelines for creating future high quality fire fuel maps.
Download or read book Climate Change and the Future Fire Environment in Ontario written by Mike Wotton and published by Sault Ste Marie : Ontario Ministry of Natural Resources, Applied Research and Development. This book was released on 2005 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increased fi re load is expected to increase the cost of fi re management in the province 16% by the year 2040 and 54% by the year 2090 over year 2000 costs, exclusive of infl ation or other factors. [...] In addition to increases in seasonal fi re severity indices, a number of these studies also predict increases in the frequency of occurrence of extreme fi re danger in some areas of the country (e.g., Stocks et al. [...] This study uses lightning- and people-caused fi re occurrence models developed specifi cally for Ontario with GCM projections of future climate and Ontario's level of protection analysis software, LEOPARDS (see McAlpine and Hirsch 1999) to estimate the impacts of climate change on the fi re management organization both in terms of numbers of escaped fi res and with respect to changes in operationa [...] The sites of the GCM grid cell centres and OMNR weather stations used are shown in Figure 1. Fire Weather and Fire Danger To create the fi re climate of a future decade, the monthly anomalies were applied to the daily data from the OMNR fi re weather station archive from the years 1992-2001 (corresponding to the period over which lightning records were available). [...] The Fire Behaviour Prediction (FBP) System (Forestry Canada Fire Danger Group 1992) was used in conjunction with the Initial Spread Index (ISI), the Build-up Index (BUI) (calculated on the detection date of the fi re using the FWI System), and the fuel type associated with the fi re to estimate an initial rate of spread for each fi re.
Download or read book Fire Effects Guide written by and published by . This book was released on 1994 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire and Vegetation Dynamics written by Edward A. Johnson and published by Cambridge University Press. This book was released on 1996-06-13 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technical introduction to the behaviour of fire and its ecological consequences, using examples from the North American boreal forest.
Download or read book The Canadian System of Soil Classification written by Canadian Agricultural Services Coordinating Committee. Soil Classification Working Group and published by NRC Research Press. This book was released on 1998 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This treatise begins with an introduction on the history of soil classification in Canada and discussion of the rationale for soil taxonomy. It then defines such terms as soil, pedon, and soil horizons before outlining the classification system along with identification keys. Chapters 4 through 13 describe the characteristics of the various soil orders and include information on distinguishing soils of one order from soils of other orders. Chapter 14 outlines criteria & guidelines used in differentiating classes in soil families and soil series categories. Chapter 15 provides information on distinguishing soil phases. Chapter 16 correlates Canadian soil taxonomy with other classification systems. Chapter 17 summarizes the main terminology used to describe soils at the landscape and pedon scales. The final chapter provides a system of landform classification for soil mapping.
