THLB definition
Examples of THLB in a sentence
Once all deductions are made the remaining area of about 65,707 hectares, or about 71% is assumed to be the THLB.
To define the THLB, a series of deductions were made from the Crown Forest Land Base to account for economic or ecological factors that reduce the forest area available for harvesting as shown in Table 12.
The following tables approximate the THLB and show areas, volumes, and age class by leading species.
The OGMAs for the Lakes TSA are defined in the Lakes District Land and Resource Management Plan and the Forest Stewardship Plan states that these areas will be removed from the THLB.
There was also an increase in the THLB of 8,759 ha due to different assumptions and modeling approaches.
Through this process, the area is systematically removed to establish both the crown forested landbase (CFLB) and the timber harvesting landbase (THLB).
Looking at the same value but only for those lands in the Plan Area that are considered to be “Timber Harvesting Land Base” (THLB), the Framework Agreement places 13.3% of ROS 1 – ROS 3 THLB lands in PPAs (none of the THLB is in existing Parks/Rec Areas in the Base Case by definition.) The Undeveloped Watershed (UW) results are similar.
The age-class distribution of the forest is largely influenced by harvest history, placing approximately 62% of the THLB are in age classes 1, 2 and 3 where 39% of the THLB area is in age class 3.
Therefore deciduous volume will be excluded from the analysis; leading deciduous stands were netted out of the THLB and within mixed coniferous/deciduous stands the deciduous volumes will be excluded from the yield tables.
Harvest drops in the 1980s down to 8% of the THLB, 2% in the 1990s and 1% in the 2000s.