nurse log การใช้

Large fragments of CWD that provide such habitat for herbs, shrubs, and trees are called nurse logs.
Meyers pointed out a seedling growing under the protection of a fallen tree, called a " nurse log ."
Old-growth forests are often Pacific coast, fallen timber may become nurse logs, providing a substrate for seedling trees.
A common feature of Pacific temperate rain forests of North America is the Nurse log, a fallen tree which as it decays, provides ecological facilitation to seedlings.
Variable retention is believed by some forestry experts to minimize the impact of logging operation by leaving biological legacies such as coarse woody debris ( nurse logs and snags ).