A method for management of a land base includes interfacing a machine or equipment to a computer running a geographical information system (GIS) application such that the computer is configured to monitor the operations performed by the equipment or machine on the land base and store the operations as map points, lines, or polygons on at least one data layer within the GIS application. The method further includes displaying the GIS application to the operator at the point and time of performing the operations.

A method for management of a land base includes interfacing a machine or equipment to a computer running a geographical information system (GIS) application such that the computer is configured to monitor the operations performed by the equipment or machine on the land base and store the operations as map points, lines, or polygons on at least one data layer within the GIS application. The method further includes displaying the GIS application to the operator at the point and time of performing the operations.

A modular structure for an energy wood grapple has at least two opposite jaws (31, 32) that are configured to press vertical trees against a blade, thereby cutting the tree. The remaining portion is held by the jaws (31, 32) against a body (10) of the energy wood grapple. The modular structure comprises two frame plates at opposite sides of the body (10), attached detachably, for example by bolts (23). The jaws (31, 32) are attached between the opposite frame plates detachably, to axles that provide a pivot for the jaws (31, 32).

A modular structure for an energy wood grapple has at least two opposite jaws (31, 32) that are configured to press vertical trees against a blade, thereby cutting the tree. The remaining portion is held by the jaws (31, 32) against a body (10) of the energy wood grapple. The modular structure comprises two frame plates at opposite sides of the body (10), attached detachably, for example by bolts (23). The jaws (31, 32) are attached between the opposite frame plates detachably, to axles that provide a pivot for the jaws (31, 32).

A feller head for use with a prime mover in harvesting trees has a grapple that defines a cavity having a vertical axis. The cavity is designed to receive a tree to be harvested along the vertical axis. A cutter blade is mounted below the grapple. The cutter blade is suitable for cutting through the tree being harvested and defines a cutting plane along which the tree is cut. An adjustable mounting mounts the cutter blade to the grapple and permits pivotal movement of the cutting plane about a roll axis and a pitch axis. An actuator controls the pivotal movement of the cutting plane about the roll axis and the pitch axis.

A feller head for use with a prime mover in harvesting trees has a grapple that defines a cavity having a vertical axis. The cavity is designed to receive a tree to be harvested along the vertical axis. A cutter blade is mounted below the grapple. The cutter blade is suitable for cutting through the tree being harvested and defines a cutting plane along which the tree is cut. An adjustable mounting mounts the cutter blade to the grapple and permits pivotal movement of the cutting plane about a roll axis and a pitch axis. An actuator controls the pivotal movement of the cutting plane about the roll axis and the pitch axis.

A gripper having at least two gripper arms movably arranged in a pincer-like manner on a base part and a cutting device for material to be cut for attachment to a processing machine, wherein the cutting device is formed by a cutting plate, which is movable by a piston-cylinder unit from an active position, in which the cutting plate projects into a receiving space for the material to be cut enclosed by the gripper arms, into an inactive position, in which the cutting plate is retracted in the base part. The retractable and extendable piston rod of the piston-cylinder unit is connected to the cutting plate via a driver pin which, in the active position of the cutting plate, rests against an abutment of the base part when the cutting plate is loaded.

A gripper having at least two gripper arms movably arranged in a pincer-like manner on a base part and a cutting device for material to be cut for attachment to a processing machine, wherein the cutting device is formed by a cutting plate, which is movable by a piston-cylinder unit from an active position, in which the cutting plate projects into a receiving space for the material to be cut enclosed by the gripper arms, into an inactive position, in which the cutting plate is retracted in the base part. The retractable and extendable piston rod of the piston-cylinder unit is connected to the cutting plate via a driver pin which, in the active position of the cutting plate, rests against an abutment of the base part when the cutting plate is loaded.

A felling unit and a method of harvesting small-dimensioned wood in a forest. A felling unit comprises a cutting device with two disc blades and a cutting gap between them for cutting small-dimensioned trees. The cut small-dimensioned trunks are transferred from the cutting gap to a temporary storage space by means of a transfer device comprising two transfer shafts with a transfer gap between them. The disc blades and the transfer shafts are both rotated in opposite directions relative to each other, i.e. towards the cutting gap and the feeding gap.

A felling unit and a method of harvesting small-dimensioned wood in a forest. A felling unit comprises a cutting device with two disc blades and a cutting gap between them for cutting small-dimensioned trees. The cut small-dimensioned trunks are transferred from the cutting gap to a temporary storage space by means of a transfer device comprising two transfer shafts with a transfer gap between them. The disc blades and the transfer shafts are both rotated in opposite directions relative to each other, i.e. towards the cutting gap and the feeding gap.