Definitions for "High-grading"
Removing all mature, good quality trees from a stand, while leaving inferior trees and less desirable species uncut. Natural regeneration from the retained trees will likely produce a poor-quality stand. High grading should be distinguished from uneven-aged management wherein some (but not all) trees in all diameter classes are removed in order to create a high-quality stand.
The practice of harvesting only the higher value trees and leaving the lower value trees in the woods ("Take the best and leave the rest"). It is frowned upon in this era of sustainability, and much effort is being made to find suitable markets for lower grade logs.
The discarding of a portion of a vessel’s legal catch that could have been sold to have a higher or larger grade of fish that bring higher prices. It may occur in quota and non-quota fisheries.