[Ministry of Forests Annual Report 1993/94 Table of Contents]
[Reporting function]
Silviculture
Provincial Silviculture programs
The provincial Silviculture programs include:
1) Reforestation programs, including:
- Current Reforestation
- Backlog Reforestation, including Outstanding Obligations
- Nursery and Seed Operations
2) the Stand-tending program (Incremental Silviculture)
3) the Forest Health program
4) training and support activities.
1) Reforestation programs
The government reforests areas under its responsibility that have been harvested, burned by wildfire, or damaged by insects or disease. These areas include:
- good and medium sites harvested prior to 1982 (Pre-82 Backlog)
- areas that were harvested under the Small Business Enterprise Program prior to January 1, 1988 (Ministry Outstanding)
- areas that were harvested by major licensees between January 1, 1982 and October 1, 1987 (Industry Outstanding)
- areas that have been burned by wildfire or damaged by pests (Current Reforestation).
Nursery and Seed Operations supply seed and seedlings for planting activities under both the provincial Silviculture programs and the Small Business Forest Enterprise Program. Staff operations include seed orchard management and cone collection; seed extraction, testing and storage; seedling production at the ministry’s three nurseries; and administering seedling contracts with private nurseries, transportation and cold storage.
2) Stand-tending program
The ministry funds stand-tending activities through the Incremental Silviculture program to improve the health, productivity and value of immature forest stands.
3) Forest Health program
Forest Health activities prevent and control damage caused by disease, insects and other organisms. Forest Health staff also monitor the use of pesticides by the ministry.
4) Training and support activities
Silviculture Training and Extension staff develop and deliver or facilitate courses for Silviculture staff, forest workers and First Nations silviculture contractors. In addition, branch staff maintain a resource centre for extension and information materials.
1993/94 Progress
A summary of field accomplishments under the provincial Silviculture programs is included in Table G-3.
1) Reforestation programs
Under the reforestation programs, ongoing work included surveys, site preparation, planting, brushing and spacing (required for a stand to reach free growing). The average 1993/94 survival rate of second-year seedlings was approximately 87 per cent.
To commemorate the three-billionth tree planted in British Columbia, the Minister of Forests planted a tree in Kamloops in June 1993.
A provincial review of pre-harvest silviculture prescriptions (PHSPs) was completed in 1993/94. The findings indicated that 97 per cent of all areas harvested in the province had approved PHSPs, and that the proper approval process had been followed 98 per cent of the time.
Audit and enforcement activities of the ministry are summarized in the following tables:
- ministry audits of basic silviculture conducted by major licensees on Crown land harvested after October 1, 1987
(Table G-8)
- ministry enforcement activities to ensure major licensee compliance with basic silviculture obligations on Crown land (Table G-9)
- penalties assessed for contravention of basic silviculture obligations by major licensees on Crown land (Table G-10)
- audits of basic silviculture performance under the Small Business Forest Enterprise Program (Table K-4).
Under Nursery Operations, staff shipped approximately 27 million seedlings for planting from the three ministry nurseries. Staff at the Green Timbers Reforestation Centre provided extension services to forest nurseries, and continued research on the culture of seedlings.
For trial purposes under the Tissue Culture program, B.C. Research staff produced 15,000 Interior spruce emblings (plants produced through somatic embryogenesis) for growth in two nurseries.
In 1993/94, coastal seed orchards produced enough seed to grow more than seven and a half million seedlings. Coastal Zone Seed Orchard staff:
- produced the first collectible cone crops from the Surrey mid-coast Douglas-fir seed orchard and the Campbell River western hemlock seed orchard
- established and completed the Phase II second-generation Douglas-fir seed orchard at Bowser
- established plantations at four seed orchard sites and six district sites to demonstrate genetic gain.
Interior Zone Seed Orchard staff:
- collected a record Interior spruce cone crop of enough seed to produce more than 277 million seedlings
- undertook studies to determine if nursery culture must be adjusted for orchard seed
- established plantations to demonstrate genetic gain.
In 1993/94, the Seed Pest Management Group provided monitoring, assessment and extension services. In addition, the Interior Seed Transfer Guidelines were reviewed, and a workshop was held on Abies seed procurement, quality and reforestation.
Record cone collections around the province in 1993/94, from both natural stands and seed orchards, resulted in a record-breaking seed-extraction season: 19,200 hectolitres of cones were processed at the Surrey Tree Seed Centre. The status of the provincial seed inventory is provided in Table G-17.
2) Stand-tending program
Under the Incremental Silviculture program, 7,084 hectares were spaced. This represents 13 per cent of the spacing activities in the province in 1993/94.
3) Forest Health program
Under Forest Health, $7.6 million was spent on bark beetle control activities and related surveys, including:
- aerial damage detection
- aerial mapping, photography and ground surveys of infested areas
- placing pheromone baits and establishing trap trees
- felling and burning or pesticide treatment of single-infested trees.
To reduce damage caused by defoliating insects, 34,245 hectares of forest were treated by aerial application of the microbial insecticide Bacillus thuringiensis Kurstaki (Btk) to control western spruce budworm, and 602 hectares were treated with a viral insecticide to control Douglas-fir tussock moth.
Treatments to control bark beetles and defoliating insects are detailed in Table G-20.
Other Forest Health activities in 1993/94 included surveys and treatment of root disease, leader weevils, porcupine damage, and others.
Estimates of timber damage and areas under attack by forest pests in 1993/94 are detailed in Tables G-18 and G-19.
4) Training and support
In 1993/94, Training and Extension continued to provide financial support for the Silviculture Institute of B.C. and the B.C. Forestry Continuing Studies Network. Training and Extension staff also:
- developed a training plan and courses for the Forest Health program
- developed course modules for newly recruited resource assistants in the Prince Rupert region
- updated the resource kit for public presentations
- developed a slide show on silviculture for international audiences
- designed and promoted a curriculum for forest workers.
The Integrated Silviculture Information System (ISIS) was implemented in all forest districts in 1993/94. This system will enhance the ministry’s ability to plan and report silviculture accomplishments.
Forecasts
At present funding levels, it is anticipated that as the ministry’s backlog reforestation responsibilities are met, the reforestation programs will decrease. However, overall silviculture activities are expected to be maintained to ensure the health and growth of new forests. This includes providing funding for integrated resource management goals, auditing, Forest Health and stand-tending activities.
The Canada - B.C. Partnership Agreement on Forest Resource Development (FRDA II)
Program
This is a federal/provincial, cost-shared forestry agreement. Fiscal 1993/94 was the third year of the FRDA II. During 1993/94, the agreement was extended by one year, so it will now finish at the end of the 1995/96 fiscal year.
The agreement is designed to support the sustainable development of the province’s forest resources. The primary objectives of the agreement are to conduct incremental silviculture (spacing, pruning and fertilizing), and to fund initiatives in communications, extension, research, small-scale forestry, product and market development, and economic and social analysis.
1993/94 Progress
Under the agreement, silviculture activities and surveys were carried out on 36,235 hectares in 1993/94. (Table G-7)
Other accomplishments under the agreement’s seven sub-programs included:
- work on more than 130 projects under the Sustainable Forest Development Sub-program in tending the forests, integrated resource management, hardwood management, silvicultural systems and forest resource inventory
- preparing and distributing reports, articles and posters, as well as sponsoring and delivering workshops, training sessions, conferences and trade shows
- work on 147 projects relating to research and technology improvement to strengthen the scientific basis for sustainable development
- continuing development of an Integrated Resource Inventory System
- continuing development of a geographic information system (GIS) program for silviculture use that can be linked to the Integrated Silviculture Information System (ISIS)
- completing programs to help promote additional secondary and tertiary manufacturing
- economic and social analysis of silviculture activities
- sending representatives to Europe for participation in technical sessions, workshop symposia and regional issues workshops, and hosting representatives from European countries
- completing the FRDA II Midterm Evaluation, which determined that FRDA II is meeting the original objectives of the agreement.
FRDA II activities are detailed in the FRDA II 1993/94 Annual Report.
Forecast
The FRDA II agreement ends on March 31, 1996. Annual activities for the final two years of the agreement are forecast at approximately the same level as those in 1993/94.
Silviculture Activities Overview
Silviculture activities can be grouped into three major categories:
- reforestation
- stand tending
- forest health.
Reforestation
By law, all Crown lands harvested in British Columbia since 1987 must be reforested within a specific time frame with a crop of healthy, ecologically suitable species. Under the Forest Act, this is termed “basic silviculture.” Reforestation is also undertaken on areas affected by fire or pests, and areas that were harvested prior to 1987.
To reforest an area, some or all of the following activities are necessary:
- surveying: taking inventory and prescribing silviculture treatments
- site preparation: preparing sites to promote natural regeneration and facilitate planting ( Table G-11)
- seed collection (Table G-17) and seedling production: producing high-quality seed and seedlings for planting
- planting: restocking denuded areas with seedlings (Tables G-12, G-13 and G-14)
- brushing: controlling competing vegetation to prevent the loss of planted or natural seedlings, including activities previously called conifer release (Table G-15)
- spacing: thinning excessively dense stands to prevent growth limitations caused by overcrowding.
Responsibility for reforestation
The responsibility for reforestation rests with the company that harvested the area, or with the province, depending on the date of harvest and land tenure.
Amendments to the Forest Act in 1987 made reforestation to a free-growing standard the obligation of everyone who harvests Crown timber. Major licensees are therefore responsible, at their own expense, for basic silviculture on areas harvested after October 1, 1987. Under the Small Business Forest Enterprise Program (SBFEP), basic silviculture on areas harvested after January 1, 1988 is funded by the SBFEP special account, and implemented by the ministry.
On lands that were harvested by major licensees between 1982 and Oct-ober 1, 1987, reforestation activities are funded by the ministry, but implemented by the licensees.
The ministry has full responsibility to fund and implement reforestation activities on lands harvested under the Small Business Enterprise Program prior to January 1, 1988, on all lands harvested prior to 1982, and on lands currently denuded by fire or pests.
A summary of the changes in the status of not satisfactorily restocked Crown land, by responsibility, is presented in Table 6.
To ensure that basic silviculture obligations are met, the ministry monitors and audits major licensees, and oversees basic silviculture activities under the SBFEP. Audit and enforcement activities are detailed in Tables G-8, G-9, G-10 and K-4.
Stand tending
In addition to reforestation activities, the ministry and major licensees may also conduct stand-tending activities to enhance tree growth and improve wood value and quality.
Activities may include:
- surveying: taking area inventories and planning future silviculture treatments
- juvenile spacing: reducing stand density to concentrate growth on a fewer number of selected trees
- fertilizing: applying fertilizer to promote tree growth on sites deficient in soil nutrients
- pruning: removing lower branches to produce clear, knot-free wood.
Forest health
Forest health activities may be undertaken during reforestation and/or stand-tending phases. The purpose of these treatments is to prevent and control damage caused by disease, insects and other organisms.
Activities may include:
- surveying: to detect insects, disease or other damaging agents
- bark beetle treatments: including placing pheromone baits, establishing trap trees, felling and burning, or pesticide treatment of single infested trees
- applying biological insecticides: to control insect infestations
- other: treatments of root disease, leader weevils and porcupine damage.
Treatments to control bark beetles and defoliating insects are detailed in Table G-20.
Treatments such as root disease eradication, which are necessary to ensure reforestation to free-growing, are required as part of the basic silviculture responsibility.
Stand-tending treatments for forest health purposes, such as pruning blister-rust infected white pine, or spacing a stand to remove mistletoe, are usually funded under stand-tending programs.
Responsibility for treatment of widespread infestations or damaging agents depends on their location and nature, and may fall to the ministry, the licensees and/or the federal government.
Silviculture activity funding
Table G-6 outlines all silviculture accomplishments on Crown land for the fiscal year. This includes ministry and non-ministry funding sources.
Funding by the ministry
Activities that are fully funded or cost-shared by the ministry (Table G-1*) include:
- Provincial Silviculture programs (Tables G-1 and G-3)
- The Canada - B.C. Partnership Agreement on Forest Resource Development (FRDA II) (Tables G-2 and G-7)
- the Small Business Forest Enterprise Program (SBFEP) (Tables K-1 and K-4)
- South Moresby Implementation – Forest Replacement Account (SMFRA) (Tables L-1 and L-2).
Non-ministry funding
Activities funded by non-ministry sources (funding not reported) include silviculture activities conducted by major licensees to meet their basic silviculture obligations. Major licensees may also voluntarily conduct stand-tending activities on some areas (Table G-4).
Entry- and bridging-level accomplishments conducted under the Forest Worker Development Program (Tables G-3 and G-5) are funded by the Ministry of Skills, Training and Labour, and by the Build BC special account. Local contracting level accomplishments are also funded by the Build BC special account.
Other reported activities include the Forestry Corrections Inmate Work Agreement, federal job creation programs, and volunteer work done by community groups. (Table G-5)
Silviculture trends
Graphs 1 through 9 on the following pages illustrate silviculture accomplishement trends on Crown land over the past 10 years.