【摘要】 于1984～1987年开展了改造杉木低价值林的试验。对10年生杉木林进行平茬萌芽更新与实生苗造林更新对照试验;对10年生杉木林进行施肥与不施肥对照试验。结果都有明显的增产效益:前者4年生树高增加46％,胸径增加36％,后者单位面积蓄积量增加123％。更多还原

【Abstract】 The control experiments of the regeneration from sprouts of Chinese fir stump at the age of ten and the forestation by tree seedlings showed that the average height of the trees from sprouts increased by 46 percent, DBH increased by 36 percent than those of tree seedlings 4 years after planting. Check experiments which fertilized Chinese fir forests at the age of ten and not did indicated that the per unit area volume of stands fertilized increased by 123 percent than that of stands not fertilized.更多还原