Author: Kurtis James BarkerPublisher:
ISBN:
Category : Black spruce
Languages : en
Pages : 50
Book Description
The Effects of Four Commercial Thinning Treatments on Rut and Root Damage in a Black Spruce Plantation
Author: Kurtis James BarkerPublisher:
ISBN:
Category : Black spruce
Languages : en
Pages : 50
Book Description
Pre-commercial Thinning in Black Spruce
Author: Ontario. Northwest Science & TechnologyPublisher: Thunder Bay, Ont. : Northwest Science & Technology
ISBN:
Category : Black spruce
Languages : en
Pages : 16
Book Description
Begins with a literature review on the habitat, reproduction and establishment, and stand development of black spruce. This is followed by a review of thinning as a silvicultural system, and thinning of black spruce in particular. Concludes with a report of a case study of the growth response of black spruce to various levels of thinning. The study area had been burned by wildfire and is located in the Tyrol Lake Demonstration Forest near Lake Nipigon, Ontario.
The Effect of Deep Planting Black Spruce
Author: Robert E. Whaley (Forester)Publisher: [Thunder Bay, Ont.] : Northwest Science & Technology
ISBN:
Category : Black spruce
Languages : en
Pages : 16
Book Description
Overview of Commercial Thinning in Black Spruce Forest
Author: Jean-Martin LussierEarly Lessons from Commercial Thinning in a 30-year Old Sitka Spruce-western Hemlock Forest
Author: Sarah GreenePublisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 16
Book Description
Effects of Cutting Method and Seedbed Treatment on Black Spruce Regeneration in Manitoba
Author: V. S. KolabinskiPublisher: Edmonton, Alta. : Forestry Canada, Northwest Region, Northern Forestry Centre
ISBN:
Category : Black spruce
Languages : en
Pages : 36
Book Description
An experiment begun in 1955 to test various cutting methods to induce regeneration in mature upland black spruce (Picea mariana [Mill.] B.S.P.) stands in western Manitoba indicated regeneration failure for five cutting methods. To improve seedbeds, bulldozer blade scarification (scalping) was carried out 5 years later. This report deals with regeneration stocking and density (in terms of 4-, 5-, and 10-m2 quadrats) 29 years after logging and 24 years after scarifying. The results showed that using cutting techniques without seedbed treatment was ineffective in promoting adequate regeneration, but scarified seedbeds were well stocked. Severe damage to the residual stand indicates a need to scarify early followed by harvesting of the residual stand. Alternate strip or small-sized block clear-cutting (15 ha in size) followed by immediate scarification is recommended.
Long-term Effects of Pre-commercial Thinning on Abundance of Small Mammals in Naturally Regenerated Black Spruce Forest Stands in New Brunswick
Author: Julia Alexandra HendersonPublisher:
ISBN:
Category : Black spruce
Languages : en
Pages : 108
Book Description
Laminated Root Rot in a Western Washington Plantation
Author: Richard E. MillerPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 48
Book Description
A 4-year-old Douglas-fir plantation in the western Washington Cascades was monitored for 8 years after fertilization with potassium (K), nitrogen (N), and K+N to determine fertilizer effects on rates of mortality from laminated root rot (LRR) and other causes relative to a nonfertilized control. Each element was applied at a rate of 300 lb/acre on and around 0.2-acre plots replicated seven times in a randomized complete block design. Cumulative mortality from LRR did not differ significantly among fertilizer treatments, and losses were strongly related to density of infected stumps from the previous stand (r2 = 0.74). Mortality from disease and other sources accelerated during the 8 years of monitoring. Average tree growth and stand volume were greatest in treatment N and were reduced where N was combined with K. Continued monitoring is needed to identify potential longer term effects of the fertilizer treatments on susceptibility of Douglas-fir to LRR and Armillaria spp.
Annosa Root Rot Stump Treatment
Author: Effect of Planting Methods on Field Performance of Black Spruce Five Years After Planting
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Summarises results of a study designed to determine whether planting faults negatively affect the survival and early growth of bareroot and container black spruce. The study was conducted in Pictou County, Nova Scotia, on a site clear-cut in 1986-7 and planted in May 1989. The trial consisted of three replications (blocks), 17 treatments, and 30 seedlings per treatment within each block. Five years after planting, trees were assessed for survival and measured for total height and leader growth. Results relate planting faults to survival, height growth, production of multiple stems, biomass production, stem deformities, and general rootform and distribution.