千年桐人工林林隙特征研究  

Gap characteristics in Aleurites montana plantation forest

作　　者：贾兰霞[1] 洪滔[1,2] 陈建忠 刘剑斌 林晗[1,2] 洪伟[1,2] 

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建省高校森林生态系统过程与经营重点实验室,福建福州350002 [3]建阳市林业局,福建建阳354200

出　　处：《福建林学院学报》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)

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 .

关 键 词：千年桐 人工林 林隙特征 

分 类 号：S718.55[农业科学—林学]