Download or read book The Effect of Mountain Pine Beetle Attack and Salvage Harvesting on Streamflows written by British Columbia. Forest Practices Board and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Mountain Pine Beetle Attack and Salvage Harvesting on Streamflows written by British Columbia. Forest Practices Board and published by . This book was released on 2007 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The effect of mountain pine beetle attack and salvage harvesting on streamflows written by and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The graph shows the large range of annual runoff in Baker Creek, from year to year, depending on snowfall. [...] The two plots of daily streamflow demonstrate the wide range of peak flows that can occur in Baker Creek from year to year depending on snowpack accumulation and melt rate. [...] The data points are the outputs of the model, before fitting to a line. [...] The upper line (red) is the expected discharge for the scenario being tested. [...] A summary table (Table 2), based on the frequency curves, summarizes the percent change in peak flow at each recurrence interval, the average peak flow change, the change in the timing of the peak event, and the seasonal water yield change for each scenario.
Download or read book Mountain Pine Beetle and Salvage Harvesting Influence on Small Stream Riparian Zones written by John F. Rex and published by . This book was released on 2009 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports on the investigation of the influence of the mountain pine beetle infestation and salvage harvesting on small stream and riparian zone ecological function, shade, and temperature. Small streams (less than a 2 m bankfull width) were selected because they are the most prominent stream type within a watershed and they determine many ecological characteristics of larger downstream channels.--Document.
Download or read book Impact of Mountain Pine Beetle Infestation and Salvage Harvesting on Seasonal Snow Melt and Runoff written by Sarah Boon and published by . This book was released on 2008 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study examines the impact of mountain pine beetle infestation on forest canopy structure on the Nechako Plateau, and the resulting impacts on snow accumulation and ablation under varied climatic conditions. Stand-scale results were used to drive a physically-based, distributed hydrological model of the Van Tine Creek watershed and assess watershed-scale hydrologic response to four harvesting/infestation scenarios."--Document.
Download or read book Hydrologic Effects of Mountain Pine Beetle Infestation and Salvage harvesting Operations written by John F. Rex and published by . This book was released on 2009 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project was developed to identify a set of risk indicators to predict the risk of summer-ground loss at the watershed level within the Vanderhoof Forest District (VFD) and others, subsequent to the mountain pine beetle (MPB) infestation of lodgepole pine stands. This report was done in relation to the VFD annual cut of stands, and the following difficultings that operators found in running their equipment in wet versus dry soils in harvest years. Risk indicators were selected from available GIS information, aerial photographs, and local knowledge. The most effective indicators for predicting the risk of wet-ground areas at the watershed level were found to be lodgepole pine content, understorey, drainage density, sensitive soils, and the topographic index, all of whose values are available from provincial databases. The work includes information on materials and methods, results and discussion, the authors' conclusions, as well as recommendations.--Includes text from document.
Download or read book Review and Synthesis of Potential Hydrologic Impacts of Mountain Pine Beetle and Related Harvesting Activities in British Columbia written by J. F. Hélie and published by . This book was released on 2005 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Synthesis of the Hydrological Consequences of Large scale Mountain Pine Beetle Disturbance written by Markus Schnorbus and published by . This book was released on 2011 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current synthesis is a review of research examining the effects of large-scale mountain pine beetle (MPB)-related disturbance conducted predominantly over the past five years. The emphasis is on research that explicitly examines the impact of beetle kill (or biotic disturbance in general) and the cumulative effects of large scale salvage harvesting operations in response to beetle kill. In general, forest disturbance has been found to increase snow accumulation and melt, reduce interception loss and evaporation, and increase runoff and stream flow.--Document.
Download or read book Mountain Pine Beetle written by Fred L. Bunnell and published by . This book was released on 2011 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides a synthesis of recently completed studies to assess the ecological consequences of forest management after attack by mountain pine beetle or other large-scale disturbances. Studies are assessed for their contributions to gaps in knowledge previously identified in the Mountain Pine Beetle Initiative Working Paper "Evaluating effects of large scale salvage logging for mountain pine beetle on terrestrial and aquatic vertebrates," which was published in 2004. This report focuses on studies developed through the federal Mountain Pine Beetle Initiative, the federal Mountain Pine Beetle Program, and the complementary BC Forest Science Program. Relevant information from other jurisdictions is sometimes included to augment those studies. Topics examined are: the impacts of beetle kill and salvage operations on habitat attributes; the impacts of beetle kill and salvage operations on attendant processes, such as snag fall rates, light interception, and snow accumulation; and the wildlife response to large-scale beetle outbreaks and management strategies. For each of these three topics, we provide a summary of: research to date; pertinent findings to date; and gaps in research.
Download or read book Mountain Pine Beetle Attack in Ponderosa Pine Comparing Methods for Rating Susceptibility written by David C. Chojnacky and published by . This book was released on 2000 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two empirical methods for rating susceptibility of mountain pine beetle attack in ponderosa pine were evaluated. The methods were compared to stand data modeled to objectively rate each sampled stand for susceptibly to bark-beetle attack. Data on bark-beetle attacks, from a survey of 45 sites throughout the Colorado Plateau, were modeled using logistic regression to estimate the probability of attack on individual trees from tree and stand variables. The logistic model allowed flexibility to easily scale results up to a stand level for comparison to the empirical methods. The empirical method, developed by Munson and Anhold, most closely correlated to the logistic regression results. However, the Munson/Anhold method rated all 45 study sites as either moderately or highly susceptible to bark-beetle attack, which raises concern about its lack of sensitivity. Future work on evaluating risk of bark-beetle impact should consider more than stand characteristics.
Download or read book The Constitution of the Environmental Emergency written by Jocelyn Stacey and published by Bloomsbury Publishing. This book was released on 2018-04-19 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book argues for a reframing of environmental law. It starts from the premise that all environmental issues confront lawmakers as emergencies. Environmental issues pose a fundamental challenge to law because it is impossible to reliably predict which issues contain the possibility of an emergency and what to do in response to such an unforeseen event. These features undermine the conventional understanding of the rule of law. This book argues that approaching environmental issues from the emergency perspective leads us to an understanding of the rule of law that requires public justification. This requirement recentres the debates in environmental law around the question of why governance under the rule of law is something worth having in the environmental context. It elaborates what the rule of law requires of decision-makers in light of our ever-present vulnerability to catastrophic environmental harm. Controversial, compelling and above all timely, this book presents an important new perspective on environmental law.
Download or read book Empire of the Beetle written by Andrew Nikiforuk and published by Greystone Books Ltd. This book was released on 2011 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in the late 1980s, a series of improbable bark beetle outbreaks unsettled iconic forests and communities across western North America. An insect the size of a rice kernel eventually killed more than 30 billion pine and spruce trees from Alaska to New Mexico. Often appearing in masses larger than schools of killer whales, the beetles engineered one of the world's greatest forest die-offs since the deforestation of Europe by peasants between the eleventh and thirteenth centuries. The beetle didn't act alone. Misguided science, out-of-control logging, bad public policy, and a hundred years of fire suppression created a volatile geography that released the world's oldest forest manager from all natural constraints. Like most human empires, the beetles exploded wildly and then crashed, leaving in their wake grieving landowners, humbled scientists, hungry animals, and altered watersheds. Although climate change triggered this complex event, human arrogance assuredly set the table. With little warning, an ancient insect pointedly exposed the frailty of seemingly stable manmade landscapes. And despite the billions of public dollars spent on control efforts, the beetles burn away like a fire that can't be put out. Drawing on first-hand accounts from entomologists, botanists, foresters, and rural residents, award-winning journalist Andrew Nikiforuk investigates this unprecedented beetle plague, its startling implications, and the lessons it holds.
Download or read book Net Precipitation Within Small Group Infestations of the Mountain Pine Beetle written by and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planning on the Edge written by Penny Gurstein and published by UBC Press. This book was released on 2019-12-01 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vancouver is heralded around the world as a model for sustainable development. In Planning on the Edge, nationally and internationally renowned planning scholars, activists, and Indigenous leaders assess whether this reputation is warranted. While recognizing the many successes of the “Vancouverism” model, the contributors acknowledge that the forces of globalization and speculative property development have increased social inequality and housing insecurity since the 1980s in the city and the region. By evaluating policies at the local, provincial, and federal levels and taking reconciliation with Indigenous peoples into account, Planning on the Edge highlights the kinds of policies and practices needed to reorient Vancouver’s development trajectory along a more environmentally sound and equitable path.
Download or read book Mountain Pine Beetle Protection of Individual Trees from Attack written by and published by . This book was released on 1987 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimating the Rate and Amount of Tree Loss from Mountain Pine Beetle Infestations written by Walter E. Cole and published by . This book was released on 1983 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tree Water Status Affects Induced Southern Pine Beetle Attack and Brood Production written by Peter L. Lorio and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
