以艾伯塔省为基地的一个从事小型林业设备生产的公司研制成了“马登”(Mardon)定点植树机,能解决花钱多和时间长的更新造林的工艺技术问题。据称,这是世界上第一台在全部生产过程中成功地采用了定点技术的植树机。这种植树机的特点在于它的镇压轮有两种类型:一种是窄轮,一种是宽轮,都是单轮镇压。采用这种单轮镇压技术,可从一侧向内向下将土壤压在苗根的周围,可以避免通常采用双轮镇压产生的窝根和缺苗的弊病。该机的另一特点,是以挖穴器替代了犁或开沟器。这种挖穴器可根据条件进行更换。该机的主要工作过程如下: A company based in Alberta, which is engaged in the production of small forestry equipment, has developed Mardon’s site-specific tree planting machine, which can solve the technical problems of reforestation with long and costly production. It is said that this is the first tree planting machine in the world that successfully adopted fixed-point technology in all production processes. The characteristic of this tree planter is that there are two types of repression wheels: one is a narrow wheel and the other is a wide wheel, which is a single wheel repression. Using this single-wheel repression technique, the soil can be pressed down from the side inwards to the roots of the seedlings, avoiding the drawbacks of roots and shoots that are usually produced by double-wheel repression. Another feature of the machine is that the digger replaces the plow or opener. This digger can be replaced according to the conditions. The main working process of the aircraft is as follows: