近几年来,我区杉木林基地在幼林抚育中,继带垦、全垦抚育之后,又采用了一种新的抚育方法——壕沟抚育。为了比较这三种抚育方法的效果,我们在攸县坪阳庙公社林场试验林内进行了一次调查。调查证明,壕沟抚育能保土、保水、保肥,有利于根系的生长发育,促进林木快速生长。壕沟抚育是在行的上方,距树蔸20—30厘米处,按照6—9尺的距离,分段挖成长1—1.2丈、宽1.5尺、深1尺的水平 In recent years, my area of ​​fir forest base in the young forest tending, following reclamation, all reclamation tending, but also adopted a new method of tending - trenches tending. In order to compare the effectiveness of these three tending methods, we conducted a survey in Pinglin Temple, You County, a pilot plantation. Surveys prove that trenches tending to soil conservation, water conservation, fertilizer, is conducive to the growth and development of roots, and promote the rapid growth of trees. Trenches tending at the top of the line, 20-30 cm away from the tree shovel, in accordance with the distance of 6-9 feet, sub-section digging grow 1-1.2 feet wide and 1.5 feet deep 1 foot level