马尾松林下套种栲树的效果分析  

The Effectiveness Analysis of Intercropping Castanopsis Species under Pinus massoniana Forest

作　　者：王榕梅 

机构地区：[1]福建省将乐国有林场,福建将乐353300

出　　处：《福建林业科技》2012年第1期53-57,66,共6页Journal of Fujian Forestry Science and Technology

摘　　要：在13年生马尾松林分中,通过间伐,在林下套种鹿角栲、格氏栲和苦槠等3种珍贵阔叶树种。采用裂区试验设计,选择上层林马尾松保留密度为主处理,分别设0(裸地)、600、900、1125株·hm-24个水平;副处理为鹿角栲、格氏栲和苦槠3种栲属树种。试验结果表明:在马尾松林下套种鹿角栲、格氏栲、苦槠3个树种,造林成活率较高,生长速度较快;保留的马尾松生长量得到提高,有利于培育马尾松大径材。上层林密度控制在900～1125株·hm-2为宜。异龄复层林枯枝落叶量大,同时可以改善林分小气候,有利于早期较耐荫鹿角栲、格氏栲、苦槠树的生长,促进枯枝落叶的分解,改善土壤肥力。表明马尾松林下套种栲属阔叶树种是一条培育马尾松大径材,保护和发展中亚热带珍贵阔叶树种,同时提高生态功能的有效途径。In the 13-year-old Pinus massoniana forest, by thinning, Castanopsis lamontii, Castanopsis kawakamii and Castanopsis sclerophylla 3 kinds of valuable hardwood species were intercropped under the stands. Using split-plot experimental design, the upper forest Pinus massoniana retained density was chosen as the key treatment, 0 （bare ground） ,600,900,1125 strains ~ hm-24 levels were taken;Castanopsis lamontii, Castanopsis kawakamii and Castanopsis sclerophylla was chosen as the assistant treatment. The ex- perimental results showed that：intercropping Castanopsis lamontii, Castanopsis kawakamii and Castanopsis sclerophylla three species under the pine forest had the higher survival rate and growth speed ; retained Pinus massoniana growth increment was improved, which was conducive to fostering large-diameter timber pine. The superstratum forest density was appropriate to be controlled in 900 ~ 1125trees ~ hm-2. The uneven-aged re-storied forest had large amount of litters, and could improve the forest microclimate, which was conducive to shade-tolerant Castanopsis lamontii, Castanopsis kawakamii and Castanopsis sclerophylla tree growth at the early stage, promoted the decomposition of litter,improved the soil fertility. It showed that intercropping Castanopsis broad-leaved species under Pinus massoniana forest was an effective way for large-diameter Pinus masoniana timber cultivation, protection and develop- ment of precious mid-asian tropical hardwood species, and improving the ecological function.

关 键 词：马尾松 鹿角栲 格氏栲 苦槠 套种 复层林 经营效果 

分 类 号：S791.248[农业科学—林木遗传育种] S725.2[农业科学—林学]