摘要
通过对千年桐人工林林隙的基本特征进行研究,以期为千年桐人工林的可持续经营和优化管理提供科学依据。结果表明,千年桐人工林冠林隙大小以10-20 m2居多,占36%,30-40 m2所占面积比例最大,为42.81%;扩展林隙中≤50 m2的小林隙最多,所占面积百分比最大的区间为75-100 m2。扩展林隙的形状指数主要集中在1.20-1.30,而冠林隙的形状指数在各范围内的分布差异不明显。林隙的形成年龄大多≤2 a。
Through field investigation of gaps in Aleurites montana plantation forest in Jianyang City of Fujian Province , this paper analyzed gap characteristics in relation to sizes , shapes, ages and so on.The results indicated that, in A.montana plantation forest, the canopy gaps of 10-20 m2 had the biggest percentage （ 36%） in number and those of 30-40 m2 had the biggest percentage （42.81%） in area.The expanded gaps of ≤50 m2 occupied the biggest percentage in number and those of 75-100 m2 occupied the biggest percentage.In shape index, expanded gaps varied from 1.20-1.30 intensely and the differences in ranges of canopy gaps were not significant .Most gaps were formed 2 years ago .All these would provide some scientific references for the sustainable management and optimum management in A.montana plantation forest .
出处
《福建林学院学报》
CSCD
北大核心
2014年第2期109-112,共4页
Journal of Fujian College of Forestry
基金
国家自然科学基金项目(30671664)
教育部博士学科专项基金项目(200803890010)
福建省科技厅重点项目(2011N0002)
关键词
千年桐
人工林
林隙特征
Aleurites montana
plantation
gap characteristics
