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Full-Text Articles in Life Sciences
Tb10: A Comparison Of Arch-Yarding And Ground-Skidding Of Pine Sawlogs In The University Of Maine Forest, Henry A. Plummer, Roger F. Taylor
Tb10: A Comparison Of Arch-Yarding And Ground-Skidding Of Pine Sawlogs In The University Of Maine Forest, Henry A. Plummer, Roger F. Taylor
Technical Bulletins
The decision whether to use a trailing-arch or operate by ground-skidding methods may face many sawlog producers. This case study attempted to determine statistically whether there existed significant differences between the two methods of operation by examining the various activities performed by a crawler-type tractor within the arch-yarding and ground-skidding phases of a harvesting system.
B627: The Relation Of Tree And Stand Characteristics To Basal Area Growth Of Red Spruce Trees In Partially Cut Stands In Eastern Maine, A. Temple Bowen Jr.
B627: The Relation Of Tree And Stand Characteristics To Basal Area Growth Of Red Spruce Trees In Partially Cut Stands In Eastern Maine, A. Temple Bowen Jr.
Bulletins
This bulletin reports on a study that evaluated the relationship of red spruce tree growth to various tree and stand conditions. Some of the tree characteristics selected for this study were initial dbh., live crown length, total height, total age at dbh, and the periodic basal area growth five years prior to partial cutting. Stand conditions that were considered included basal area per acre and the number of trees per acre, since both are relative measures of the competition between trees on any given area. The relationships between these factors would be useful in assessing the potential of any given …
Tb7: Scheduling Of Pallet Trucks In Pulpwood Operations, Thomas J. Corcoran
Tb7: Scheduling Of Pallet Trucks In Pulpwood Operations, Thomas J. Corcoran
Technical Bulletins
This study illustrates a method of scheduling pallet trucks using data obtained from pallet operations in Maine. The method, which is based upon a linear programming technique, can be employed in the determination of the minimum number of trucks required to handle a continuous flow of pulpwood in situations involving multi-pickup and multi-delivery points. In addition, the program establishes times and places of pulpwood pickup and delivery for each required truck.