Assessment of Silvicultural Systems Developed for Deep Snowpack Mule Deer Winter Range in the Central Interior of B.C. PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Assessment of Silvicultural Systems Developed for Deep Snowpack Mule Deer Winter Range in the Central Interior of B.C. PDF full book. Access full book title Assessment of Silvicultural Systems Developed for Deep Snowpack Mule Deer Winter Range in the Central Interior of B.C. by M. J. Waterhouse. Download full books in PDF and EPUB format.
Author: M. J. Waterhouse
Publisher: British Columbia Forest Science Program
ISBN:
Category : Nature
Languages : en
Pages : 56
Get Book Here
Book Description
"In the central interior of British Columbia (Southern Interior Forest Region), Douglas-fir (Pseudotsuga menziesii) tends to occur in even-aged stands in the Interior Cedar-Hemlock Moist, Cool, Horsefly biogeoclimatic variant (ICHmk3). Douglas-fir stands are important from both forest industry and wildlife habitat management perspectives. Mule deer require mature and older Douglas-fir stands as winter range. In these ecosystems, Douglas-fir stands are typically clearcut, thereby seriously compromising habitat value as winter range. This is a pilot study to examine the response of vegetation (percent cover) and Douglas-fir regeneration (density and growth) to a range of opening sizes, opening orientation (along and across contours), and site preparation treatment (yes or no), 5 years post-harvest. The openings (15 165 m [0.25 ha], 30 165 m [0.5 ha], 60 165 m [1.0 ha], 60 330 m and 140 140 m [2.0 ha]) are options for group selection, patch cut, or clearcut silvicultural systems. Although most of the 19 tree, shrub, and grass species that mule deer could eat did not change in percent cover from pre-harvest to 5 years postharvest, the species that did change were most strongly affected by harvesting, not opening size. A major diet component, western redcedar (Thuja plicata), was reduced from 9.6 to 1.4% in the site-prepared openings, and from 9.4 to 3.9% in the openings not site-prepared, when comparing the pre-harvest to the 5th-year post-harvest assessment. However, in the 5 years since harvesting, this species has increased from 533 stems per ha to 783 stems per ha (47%) and should increase steadily in cover over time. Of note was a big increase in red raspberry (Rubus idaeus) (from 0.1% up to 14%) and a moderate increase in birch-leaved spirea (Spirea betufolia) (from 1% up to 6%); however, they generally occur in small amounts (
Author: M. J. Waterhouse
Publisher: British Columbia Forest Science Program
ISBN:
Category : Nature
Languages : en
Pages : 56
Get Book Here
Book Description
"In the central interior of British Columbia (Southern Interior Forest Region), Douglas-fir (Pseudotsuga menziesii) tends to occur in even-aged stands in the Interior Cedar-Hemlock Moist, Cool, Horsefly biogeoclimatic variant (ICHmk3). Douglas-fir stands are important from both forest industry and wildlife habitat management perspectives. Mule deer require mature and older Douglas-fir stands as winter range. In these ecosystems, Douglas-fir stands are typically clearcut, thereby seriously compromising habitat value as winter range. This is a pilot study to examine the response of vegetation (percent cover) and Douglas-fir regeneration (density and growth) to a range of opening sizes, opening orientation (along and across contours), and site preparation treatment (yes or no), 5 years post-harvest. The openings (15 165 m [0.25 ha], 30 165 m [0.5 ha], 60 165 m [1.0 ha], 60 330 m and 140 140 m [2.0 ha]) are options for group selection, patch cut, or clearcut silvicultural systems. Although most of the 19 tree, shrub, and grass species that mule deer could eat did not change in percent cover from pre-harvest to 5 years postharvest, the species that did change were most strongly affected by harvesting, not opening size. A major diet component, western redcedar (Thuja plicata), was reduced from 9.6 to 1.4% in the site-prepared openings, and from 9.4 to 3.9% in the openings not site-prepared, when comparing the pre-harvest to the 5th-year post-harvest assessment. However, in the 5 years since harvesting, this species has increased from 533 stems per ha to 783 stems per ha (47%) and should increase steadily in cover over time. Of note was a big increase in red raspberry (Rubus idaeus) (from 0.1% up to 14%) and a moderate increase in birch-leaved spirea (Spirea betufolia) (from 1% up to 6%); however, they generally occur in small amounts (
Author: M. J. Waterhouse
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8
Get Book Here
Book Description
Author: Susan Stevenson
Publisher: UBC Press
ISBN: 0774818514
Category : Nature
Languages : en
Pages : 458
Get Book Here
Book Description
The vast temperate rainforests of coastal British Columbia are world renowned, but much less is known about the other rainforest located 500 kilometres inland along the western slopes of the interior mountains. The unique integration of continentality and humidity in this region favours the development of lush rainforest communities that incorporate both coastal and boreal elements. In British Columbia's Inland Rainforest, scientists bring together, for the first time, a broad spectrum of information about this distinctive ecosystem. They also consider the ecological consequences of human activities in the rainforest and present strategies for its management and conservation.
Author: H. M. Armleder
Publisher: British Columbia, Ministry of Forests Research Program
ISBN: 9780772636973
Category : Douglas fir
Languages : en
Pages : 11
Get Book Here
Book Description
Describes a specialized low volume removal (20%) single tree selection silvicultural system designed to integrate timber harvesting with the needs of mule deer on interior Douglas-fir winter ranges in central interior BC. The impact of this harvesting was assessed on mule deer during the winter months from 1984-91.
Author: M. J. Waterhouse
Publisher:
ISBN: 9781039900301
Category : Douglas fir
Languages : en
Pages : 0
Get Book Here
Book Description
Author: Rick Dawson
Publisher:
ISBN: 9781039900400
Category : Douglas fir
Languages : en
Pages : 0
Get Book Here
Book Description
Snow depth has a critically important influence on mule deer distribution, habitat selection, energy costs, and population levels. Several factors, including forest structure, slope, aspect, elevation, and subregional climate, affect snow depth. Of these factors, forest structure is the only one directly affected by forest management activities such as harvesting, pre-commercial thinning, and road building. Partial cutting in uneven-aged Douglas-fir (Pseudotsuga menziesii) forests in the central interior of British Columbia has produced a range of stand structures.Snow depth and stand attribute data were collected in 1988–1991 from 11 stands with a range of harvest histories. There was a strong relationship between mean snow interception and mean stand attributes, including crown completeness and basal area. Frequency distributions were used to visualize variation in snowpack depth in each stand and help explain the meaning of this variation for deer. Based on 42 winters (1980–2022) of snowpack data from the Environment Canada weather station at the Williams Lake airport, the depth and duration of the snow-pack has not decreased, despite a warming climate, and may be increasing. The results of this study are put in the context of a specialized management system developed to provide for deer habitat and structural diversity at multiple scales on deer winter range in the Cariboo Forest Region. In addition to snow interception, key habitat functions affected by forest structure including security cover, thermal cover, and forage availability are discussed.
Author: Teresa A. Newsome
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 76
Get Book Here
Book Description
Author: M. J. Waterhouse
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 4
Get Book Here
Book Description
Author: J. B. Nyberg
Publisher: Information Services Branch Ministry of Forests
ISBN:
Category : Nature
Languages : en
Pages : 70
Get Book Here
Book Description
Provides options for timber management that maintain essential winter range for black-tailed deer while minimizing economic impacts.
Author: British Columbia. Ministry of Forests
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 56
Get Book Here
Book Description
This guidebook is designed to aid forest workers in choosing a silvicultural system in compliance with the British Columbia Forest Practices Code. It lists and defines the different types of silvicultural systems used in British Columbia, promoting a common terminology for basic definitions and silvicultural system concepts throughout the province. The guide offers a step-by-step decision-making process on how to choose a silvicultural system, and details the factors that forest workers should consider in making this decision. The guide also includes a sample checklist of silvicultural prescription requirements and recommended supporting information, plus an Integrated Silviculture Information System/Major Licensee Silviculture Information System key for silvicultural systems.
