Chapter 9 Flashcards
(55 cards)
Annuel allowable cut (AAC)
The amount of timber that is allowed to be cut annually from a specified area
Biocides
Chemicals that kill many different kinds of living things; also called pesticides
Biodiversity
The variety of life forms that inhabit the Earth. Biodiversity includes the genetic diversity among members of a population or species as well as the diversity of species and ecosystems
Boreal Forests
One of the largest forest belts in the world, extending all across North America and Eurasia, encompassing roughly a third of the Earth’s forested land and 14% of the world’s forest biomass, and separating the treeless tundra regions to the north from the temperate deciduous forests or grasslands to the south
Boreal Shield
The largest ecozone in Canada, stretching along the Canadian Shield from Saskatchewan
to Newfoundland
Carbon sequestration
Rainforest and afforestation to ameliorate carbon dioxide loadings in the
atmosphere because trees and shrubs use the excess CO2
Certification
The confirmation of certain characteristics of an object, person, or organization, as
with various forestry programs certifying that wood products have come from sustainably managed
forests.
Chain of custody
Procedures for verification of compliance with sustainable practices from product
origin through to the final product, as with wood products from the forest to Home Depot.
Clear-cutting
A forest harvesting technique in which an entire stand of trees is felled and removed.
Complete-tree harvesting
The harvesting of all of the above and below-ground biomass of a tree.
Culmination age
The age of economic maturity of a tree crop, which varies widely but usually falls
within the 60 to 120 year range in Canada.
DDT (dichlorodiphenyltrichloroethane)
An organochlorine insecticide used first to control malaria-carrying
mosquitoes and lice and later to control a variety of insect pests but now banned in
Canada because of its persistence in the environment and ability to bioaccumulate.
Ecosystem services
Contribution of ecosystems to human well-being.
Ecosystem-based management (EBM)
Holistic management that takes into account the entire
ecosystem and emphasizes biodiversity and ecosystem integrity, as opposed to focusing primarily or
solely on a resource or resources, such as water or timber, within an ecosystem.
Falldown effect
The lower volume of harvestable timber at the culmination age for second growth
on sites where old-growth forest was previously harvested.
Forest tenure
The conditions that govern forest ownership and use
Full-tree harvesting
Timber-cutting where trees are felled and transported to roadside with
branches and top intact
Leaching
The downward movement of dissolved nutrients to the hydrological system.
Long-run sustained yield (LRSY)
The yield for an area that is equal to the culmination of mean
annual increment weighted by area for all productive and utilizable forest land types in that area;
what a given unit of land, such as a forest, should yield in perpetuity.
New forestry
A silvicultural approach that mimics natural processes more closely through emphasizing
long-term site productivity by maintaining ecological diversity.
Non-timber forest products (NTFPs)
Forest resources of economic value but not related to the
lumber and pulp and paper industries, such as wild rice, mushrooms and berries, maple syrup, edible
nuts, furs and hides, medicines, and ornamental cuttings.
Nutrient Capital
The amount of nutrients within a particular nutrient reservoir\
Old-growth forests
Forests that generally have a significant number of huge, long-lived trees; many
large standing dead trees; numerous logs lying about the forest floor; and multiple layers of canopy
created by the crowns of trees of various ages and species.
Pheromones
s Volatile compounds, or “scents,” used by insects of a given species to communicate
with each other.
