3.3. Regeneration Methods: Seed-Tree - SFA Silviculture
Seed trees are removed after regeneration is established (Adams et al. 1994). Figure 3.3.1. A slash pine stand, with half the original stand still intact (right side) and the other half following the seed-tree cut (left side). Once the new cohort is established, the seed-trees will be removed.
Timber Harvest Methods - Forestry Editorial
2024年8月22日 · The primary timber harvest methods include clear-cutting, shelterwood cutting, selective cutting, seed-tree cutting, coppicing, variable retention harvesting (VRH), and strip and patch cutting. Each method has specific …
Seed-tree seed cutting (upper left) leaves at least 6 residual trees per acre, and they must be distributed in such a way as to ensure adequate natural regeneration. Seed-tree cutting with reserves (upper right) reserves all or some of the seed trees for non-regeneration
Timber Harvesting Methods That Encourage Forest Regeneration …
2018年4月1日 · The Seed-tree Method - This method is simply what it suggests. Upon removing most of the mature timber, a small number of "seed trees" are left singly or in small groups to establish the next even-aged forest. In effect, you are not dependent on trees outside the cutting area but must be concerned about the trees you do leave as the seed source.
Natural Regeneration Using Seed Trees | Mississippi State …
Perhaps the easiest way to ensure proper seed-tree distribution is to consider leaving trees in terms of rows that run perpendicular to the prevailing wind. For loblolly pine, these rows can be spaced approximately two times the height of the trees themselves.
In order for the practice to work, some trees must be cut or killed within most, or all, diameter classes to maintain the desired distribution of diameter classes in the residual stand. This method favors shade-tolerant tree species. Shade tolerance is a term that refers to the ability of a tree to survive and grow in shaded conditions.
harvesting methods - Florida Land Steward - University of Florida
2023年2月1日 · The seed tree method is similar to the shelterwood method in that we are removing most of the mature overstory and leaving a portion standing. However, the seed tree method leaves only a few residuals as a seed source only. The residuals from this cut are too few and scattered to provide shelter.
The seed tree method is the cutting of all trees except for a limited number of widely dispersed trees retained for seed production. The shelterwood method is the cutting of most trees, leaving only those needed to produce sufficient shade or insulation from temperature extremes to produce a new age class in a moderated microenvironment.
On cut over timber land, productivity of commercial loblolly pine (Pinus taeda L.) plantations depends on seedlings competing successfully for finite levels of soil resources. Reforestation phase of plantation development includes site preparation, regeneration (seedling establishment) and post-establishment weed suppression.
When marking a seed-tree cut, the goal is to leave the absolute best trees of the desired species. The follow-ing characteristics are desirable for all seed trees: tall, straight, well-pruned, well-developed crown, average seed production, disease-free, superior volume growth, and wind-disseminated seeds.