杉木工程造林初期成效及管理办法的研究

将造林作为一项系统工程,把造林科学和管理科学紧密结合起来,使系统的工程管理办法与造林技术措施相配套。1984—1989年全县营造速生丰产林22.6万亩,其中杉木16.9万亩,初期成效十分显著。平均成活率比一般造林提高14％;6年生平均树高4.5M,比一般造林增长45.6％,胸径增长68.8％,同时造林面积落实。并有利于集约经营,规模经营和定向培育,实现速生丰产,是我省速生丰产林基地建设一种新的经营模式。

A Study of the Effect of Chinese-fir Silvicultural Engineering in the Early Phase and Its Management Method

The effect in the early phase of a silvicultural cngineering for Chin-ses fir is very significant. The planting areas of the silvicultural engineering is more workable than that of the traditional culture regime. The silvicultural engineering can increase the average survival by 114 % as compared with that of the traditional culture regime. The current annual increment of the silvicultural engineering can reach 49 cm. And the criterion is 35 cm. The silvicultural engineering can respectively increase the height and D.B.H of 6-yr-old Chinese fir by 145.6% and 168.8%. The result shows that the silvicultural engineering is a new regime, which favors the intensive management, directional culture, fast growth and high yield in Fujiar province.