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Full-Text Articles in Life Sciences
Mp762: Harvesting Equipment Cycle Time And Productivity Guide For Logging Operations In Maine, Patrick Hiesl, Jeffrey G. Benjamin
Mp762: Harvesting Equipment Cycle Time And Productivity Guide For Logging Operations In Maine, Patrick Hiesl, Jeffrey G. Benjamin
Miscellaneous Publications
This guide provides cycle time and productivity information for harvesting equipment commonly used in Maine’s logging industry for partial harvests. Data were collected in terms of time consumption per work task. With these data, cycle time equations were developed. Productivity functions were developed using tree volumes. It is important to remember that productivity may vary from stand to stand due to differences in tree volume at the site level. Cycle time functions are independent of tree volume and will give fairly accurate predictions of time consumption per machine.
B751: The Effects Of Mechanized Harvesting On Soil Conditions In The Spruce-Fir Region Of North-Central Maine, Gregory T. Holman, Fred B. Knight, Roland A. Struchtemeyer
B751: The Effects Of Mechanized Harvesting On Soil Conditions In The Spruce-Fir Region Of North-Central Maine, Gregory T. Holman, Fred B. Knight, Roland A. Struchtemeyer
Bulletins
The impact of the new harvesting methods on soil with respect to soil disturbance is largely unknown. One objective of this study was to determine the extent of soil compaction and disturbance to the organic cover of the soil resulting from the use of mechanical harvesters and rubber-tired skidders during logging operations in north-central Maine.
Tb25: The Effect Of Stand Factors On The Productivity Of Wheeled Skidders In Eastern Maine, Ernest B. Harvey Iii, Thomas J. Corcoran
Tb25: The Effect Of Stand Factors On The Productivity Of Wheeled Skidders In Eastern Maine, Ernest B. Harvey Iii, Thomas J. Corcoran
Technical Bulletins
The objective of this study was to determine what forest stand factors, as they constitute a set of operating conditions, affect skidder and skidder crew productivity and the degree of their effect.
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.
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.