Agriculture The raising of food or other crops.

Biologist A person trained in the science of life and living organisms.

Canopy - layer formed by the leaves and branches of the tallest trees in the forest.

Cellulose - the main part of the cell walls of wood which produce fiber.

Competition The struggle for existence among living organisms.

Coniferous - a tree that bears its seeds in cones. Usually refers to needleleaf trees.

Conservation - responsible use, protection, and improvement of natural resources for the present and future.

Deciduous - term describing a plant that sheds its leaves annually, usually in autumn.

Ecosystem The basic unit in ecology, including both the organisms and the non-living environment.

Evolve To develop gradually.

Feller-Buncher Timber harvesting machine that cuts trees and stacks tree lengths for skidding.

Feller-Processor Timber harvesting machine that cuts trees and processes them into logs. Usually used in tandem with a Forwarder.

Forwarder timber harvesting machine that picks up logs and transports them out of the forest to a road.

Foliage The growth of leaves on a tree or other plant.

Habitat The region or environment where a plant or animal is normally found.

Hardwood - wood produced by deciduous trees such as maples and oaks. Also, another term for deciduous trees.

Harvest - managed removal of trees by selective or complete harvest methods.

Forest Management - the practical application of scientific, economic, and social principles to the use and care of a forest.

Niche Any position specially adapted to its occupant.

Nonrenewable Resources - substances (e.g., oil, gas, coal, copper, and gold) which once used, cannot be replaced.

Nutrients Substances that provide nourishment to plants and other organisms.

Photosynthesis The process by which plants form carbohydrates from carbon dioxide, inorganic salts and water, through the agency of sunlight acting upon chlorophyll.

Purify To make clean.

Riparian Pertaining to the bank of a river; often used to denote wetland plant communities.

Recreation - the use of forestland for human enjoyment and relaxation.

Regeneration - the renewal of a tree crop whether by natural (seed trees, sprouts) or artificial (planting) means.

Renewable Resources - a naturally occurring raw material or form of energy, which can replenish itself through sound management, practices in your lifetime (e.g., trees)

Sawtimber - trees yielding logs considered suitable in size and quality for producing lumber or sawn wood (logs cut into a square edged form).

Scenery The appearance or visible aspects of a landscape.

Seedling - a young tree grown from the seed.

Skidder A timber harvesting machine that drags trees or logs out of the forest to a road.

Softwood - wood produced by coniferous trees such as pines, cedars, and firs. A common but not strictly accurate term since the wood of some conifers is harder than some hardwood trees. Another term for a coniferous tree.

Sprout - healthy new trees growing from the tree stump or roots of a tree that has been harvested.

Stewardship - using wise management practices for many benefits and uses of forestland.

Succession - the gradual replacement of one plant community by another, through natural processes over time.

Sustainability - use and growth of natural resources to meet present and future needs.

Taxol a drug used to treat ovarian and other cancers.

Timber Cruise - a survey of a forest to identify health, types, and number of trees.

Understory - layer formed by the leaves and branches of the smaller trees under the forest canopy.

Urban Forest - An urban area extends from town center to suburb's edge. The urban forest would include tree-lined roadways, open green spaces, undeveloped forests, parks, along with other public and private spaces within this urban area.

Veneer - a thin sheet of wood of uniform thickness produced by rotary cutting, slicing, or sometimes sawing.

Watershed - an area of land that drains water from small streams toward a major river or stream.

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