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Term Main definition
renewable resource

Resource whose supply becomes available for use at different time intervals and in which present use does not diminish future supply.

reproductions

All trees below 5 centimeters in DBH and at least 1.3 meters (30 centimeters for pine) in height.

residual forest

The status or condition of a forest subsequent to commercial logging and which there is more or less sufficient or adequate volume of residuals or the desired species of trees of future harvest.

residual inventory

The physical examination of marked trees left after timber harvesting, for purposes of determining the condition and extent of damage.

resource reserve

An extensive, relatively isolated, and uninhabited area which is difficult to access and is designated to protect the natural resources of the area for future use and prevent or contain development activities that could affect the resources, pending the establishment of sustainable resources utilization goals which are based upon appropriate information and planning.

restoration zone

A portion of the protected area comprising of degraded habitat where the long term goal will be to restore natural habitat with its associated biodiversity and to rezone the area to a more strict protection level.

riparian zone

A strip of land maintained along a stream, lake, road, recreation site or different vegetative zone to mitigate the impacts of actions of adjacent lands, to enhance aesthetic values or as to demonstrate best management practice.

root rot fungi

A root inhabiting fungi characterized by an expanding parasitic phase on the living host plant by declining saprophytic phase after its death.

rotation

The number of years between the initial establishment of plantation and the time when it is considered ready for harvesting.

rough lumber

Lumber as it comes from the saw prior to any dressing operation.

rouging

A systematic removal of trees with undesirable phonological characteristics from a seed orchard or seed production areas.

roundwood

Wood in its natural state as felled, or otherwise harvested, with or without bark, round, split, roughly squared or other forms.

runoff

A portion of total rainfall from a given area that appears in natural or artificial surface streams.