A first machine of a tree planting system includes: a cultivator cultivating soil where a plant for tree planting is to be planted; a first traveling device traveling with the cultivator; and a cultivated position detector obtaining and outputting actual cultivated positions corresponding to positions of the cultivator while the cultivator travels with the first traveling device and cultivates the soil. A management device of the tree planting system stores actual cultivated positions. A second machine of the tree planting system includes: a planting device planting a plant in the soil; a second traveling device traveling with the planting device; a planting device position detector obtaining a position of the planting device; and a controller controlling a position of the planting device based on: actual cultivated positions acquired from the management device; and the position of the planting device at the timing when a plant is planted.

A tree section lowering assembly is provided. The tree section lowering assembly includes a support member having a first side, an opposing second side, a first end, and an opposing second end. A plurality of rung members extend from the first side of the support member. Each of the plurality of rung members has an outer surface configured to facilitate a frictional, sliding engagement with an interlaced rigging line. A reinforcement member extends from the second side of the support member and is configured to structurally support the support member. An upper line guide extends from a rung member at the located first end of the support member and a lower line guide extends from a different rung member located at the second end of the support member.

A tree section lowering assembly is provided. The tree section lowering assembly includes a support member having a first side, an opposing second side, a first end, and an opposing second end. A plurality of rung members extend from the first side of the support member. Each of the plurality of rung members has an outer surface configured to facilitate a frictional, sliding engagement with an interlaced rigging line. A reinforcement member extends from the second side of the support member and is configured to structurally support the support member. An upper line guide extends from a rung member at the located first end of the support member and a lower line guide extends from a different rung member located at the second end of the support member.

A method for stabilizing at least one frame part of a forest work unit involves determining a moment applied by a payload of the forest work unit to a frame part to be supported and determining a magnitude and direction of at least one support moment needed at least for stabilizing the frame part on the basis of the moment applied by the payload to the frame part to be supported. An arrangement for stabilizing at least one frame part of a forest work unit comprises means for carrying out said determinations.

The wood tensioning apparatus for vegetation management educational training is a training device. The wood tensioning apparatus for vegetation management educational training is configured for use with the limb of a tree. The wood tensioning apparatus for vegetation management educational training secures the limb of the tree into a fixed position. The wood tensioning apparatus for vegetation management educational training allows the limb of the tree to be safely cut during training activities. The wood tensioning apparatus for vegetation management educational training incorporates a pedestal structure, a limb platform structure, and a tensioning structure. The limb platform structure and the tensioning structure attach to the pedestal structure. The limb platform structure elevates the limb of the tree above a supporting surface. The tensioning structure secures the limb of the tree into a fixed position.

The wood tensioning apparatus for vegetation management educational training is a training device. The wood tensioning apparatus for vegetation management educational training is configured for use with the limb of a tree. The wood tensioning apparatus for vegetation management educational training secures the limb of the tree into a fixed position. The wood tensioning apparatus for vegetation management educational training allows the limb of the tree to be safely cut during training activities. The wood tensioning apparatus for vegetation management educational training incorporates a pedestal structure, a limb platform structure, and a tensioning structure. The limb platform structure and the tensioning structure attach to the pedestal structure. The limb platform structure elevates the limb of the tree above a supporting surface. The tensioning structure secures the limb of the tree into a fixed position.

In the disclosed solution, a boom assembly of a work machine is controlled by tip control. In tip control, a control command is given to a tip of a boom assembly, converted into control commands for individual actuators of the boom assembly. In the disclosed solution, a variable related to a load and its position at the tip of the boom assembly is defined, and the variable in question related to the load and its position at the tip of the boom assembly is taken into account in the control command for the actuator.

In the disclosed solution, a boom assembly of a work machine is controlled by tip control. In tip control, a control command is given to a tip of a boom assembly, converted into control commands for individual actuators of the boom assembly. In the disclosed solution, a variable related to a load and its position at the tip of the boom assembly is defined, and the variable in question related to the load and its position at the tip of the boom assembly is taken into account in the control command for the actuator.

The present disclosure relates to cutting tools for mounting onto a rotary drum or disc of a forestry equipment for cutting ligneous material, the cutting tool comprising: a coupling side for mounting onto the rotary drum or disc; a cutting side opposite the coupling side, the cutting side comprising a concave surface forming a pocket and at least two cutting edges; and at least two lateral sides extending from the coupling end to the cutting end. Each of the cutting edges comprises a plurality of serrations defining valleys or depressions in the concave surface of the cutting side, the valleys extending at different angles relative to a corresponding one of the cutting edges.

The present disclosure relates to cutting tools for mounting onto a rotary drum or disc of a forestry equipment for cutting ligneous material, the cutting tool comprising: a coupling side for mounting onto the rotary drum or disc; a cutting side opposite the coupling side, the cutting side comprising a concave surface forming a pocket and at least two cutting edges; and at least two lateral sides extending from the coupling end to the cutting end. Each of the cutting edges comprises a plurality of serrations defining valleys or depressions in the concave surface of the cutting side, the valleys extending at different angles relative to a corresponding one of the cutting edges.