引言采伐迹地营造松树林,通过烧除和采伐前对阔叶树注射的办法,或通过精细整地,第一年就能形成成活率高,少有杂木竞争的林分。促进新林生长的其它培养措施是杂草防除和施肥。但这些措施的正确运用,必须先了解有关问题,如松树对这些措施的生长反应;单独运用或综合运用这些措施的效果;以及在本轮伐期前段松树生长反应的变化等。由于竞争植物要争肥,了解未进行防除时所造成的养分损失,必须对其养分的吸 INTRODUCTION Deforestation creates a pine forest, which can be formed in the first year by burning and deciphering broadleaf trees prior to harvesting, or through careful land preparation. Other measures to promote the growth of new forests are weed control and fertilization. However, the correct application of these measures must first understand the relevant issues such as the pine growth response to these measures; the effect of using these measures alone or in combination; and the changes in the growth response of the pine before the current rotation. As competing plants have to fight over fertilizers and understand the nutrient losses caused when no control is made, they must absorb their nutrients