鹅掌楸采种母树林改建试验初报  

PRELIMINARY REPORT ABOUT LIRIODENDRON CHINENSE SEED COLLECTING FOREST＇S IMPROVEMENT

作　　者：蒋宣斌[1] 谭小梅[1] 张正文[1] 周小舟[1] 陈道静[1] 

机构地区：[1]重庆市林业科学研究院,三峡库区森林生态保护与恢复重庆市市级重点实验室

出　　处：《重庆林业科技》2014年第1期1-4,共4页Journal of Chongqing Forestry Science and Technology

基　　金：重庆市科技攻关项目（CSTC2009AB1119）资助;三峡库区森林生态保护与恢复重庆市市级重点实验室资助.

摘　　要：选取中龄鹅掌楸人工林，进行疏伐改良、截干矮化处理，改造1年后：林分结实母树数量明显增加，标记结果母树单株结实量与改造前无明显差异，单株结实量与种子千粒重显著相关；截干1．8m处理的萌枝数量、萌生枝平均枝长、最长枝、冠幅宽度均明显大于截干0．6m处理。Select middle-aged Liriodendron chinense （Hemsl.）Sargent plantations for thinning improvement, stumped dwarfing processing. After 1 year, the number of tree for seed collection increased significantly; the amount of seed per plant mothertree was no significant difference with before the improvement; seed output of single plant was correlated significantly with 1000-seed weight; stumped 1.8m from the ground processing have an significantly advantage over stumped 0.6m processing on the number of sprouting, average branch length of sprouted branches, the length of longest branch, crown breadth.

关 键 词：中国鹅掌楸 采种母树林 改建 

分 类 号：S727.32[农业科学—林木遗传育种] S728.1[农业科学—林学]