| 摘要 |
When planting plants and similar objects a forest vehicle (1) is used which is provided with automatic planting assemblies (13) mounted at hydraulically controlled arms (11). The vehicle (1) moves slowly forwards and the absolute geographic position thereof is determined by means of satellite signals received on the antenna (15). At the frontmost portion of the vehicle (1) on a movable arm (3) scanning means such as a georadar screen (5) is provided, which transmits radar waves having a suitable wavelength and scans the groun d area in front of the vehicle (1). The georadar determines the depth of soil and obstacles to planting such as stones and stumps. From the determinations of the georadar also suitable planting places are determined and the positio ns thereof are stored. The planting arms (11) and their assemblies (13) are the n controlled, so that during the continuous movement of the vehicle forwards t he planting assemblies stand still at the determined planting places and there perform planting. Owing to the determination of the soil conditions planting can be made with a high yield and due to the automated procedure using a minimum of man power.
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