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中文摘要：
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≤2a。
英文摘要：
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 .
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