摘 要：
为克服单一树种经营的弊端,提高林分生产力,开展韦赤桉纯林、杉木纯林、马尾松纯林、韦赤桉×杉木混交林、韦赤桉×马尾松混交林和杉木×马尾松混交林6种模式造林试验,对其7年生林分生长情况进行调查分析,结果表明:6种造林模式的保存率均超过87%;与3种纯林造林模式相比,林分密度为2505株/hm-2,韦赤桉与杉木1∶3比例混交和杉木×马尾松1∶1比例混交的两种造林模式取得了双赢的效果,在这两种混交造林模式下,韦赤桉、马尾松、杉木的生长状况均较纯林造林模式好,其中韦赤桉与杉木混交林的韦赤桉平均胸径、平均树高和平均单株材积分别较韦赤桉纯林高出9.96%、19.82%和40.05%,杉木的平均胸径、平均树高和平均单株材积分别较杉木纯林提高了24.89%、10.73%和69.23%。
译 名：
The Afforestation Effect of Eucalyptus wetarensis × E. camaldulensis Mixed with Pinusmassoniana or Cunninghamialanceolata
作 者：
CHEN Liu-ying;Jian'ou Forestry Science and Technology Promotion Center;
关键词：
Eucalyptus wetarensis×E;;camaldulensis;;Pinusmassoniana;;Cunninghamia Lanceolata;;mixedforest;;afforestation effect
摘 要：
In order to overcome the disadvantages of single species management and improve forest productivity, investigation and analyses of pure and mixed stands of the species Eucalyptuswetarensis× E. camaldulensis, Pinusmassoniana and Cunninghamialanceolata were carried out. Six afforestation models were investigated including: pure stands of P. massoniana; pure stands of C. lanceolata; pure stands of E. wetarensis× E. camaldulensis; mixed stands of C. lanceolata and E. wetarensis× E. camaldulensis; mixed stands of P. massoniana and E. wetarensis× E. camaldulensis; and, mixed stands of P. massoniana and C. lanceolata. The results showed that the seedling survival rate for all 6 afforestation models exceeded 87%. Compared with three kinds of pure stands and with forest stand density of 2505 trees/ha, stands of E. wetarensis× E. camaldulensis mixed with C.lanceolata at a 1:3 ratio and C.lanceolata mixed with P.massoniana at a 1:1 ratio provided win-win results; in these two types of mixed stands the growth of E. wetarensis× E. camaldulensis, P.massoniana and C.lanceolata were comparable with that in the pure standand better than either the mixed stand of E. wetarensis× E. camaldulensiswith C.lanceolataor the pure stand of E. wetarensis× E. camaldulensis. In the mixed stand of the three species, the average diameter, tree height and plant material integral was 9.96%, 19.82% and 40.05% higher than the pure E. wetarensis× E. camaldulensis stand; and 24.89%, 10.73% and 69.23%. higher than the pure C.lanceolatastand.
