福建万木林中亚热带常绿阔叶林林隙更新研究  

Gap Phase Regeneration in Mid-Subtropical Evergreen=Broad-Leaved Forest in Wanmulin, Fujian

作　　者：闫淑君[1] 洪伟[2] 吴承祯[2] 

机构地区：[1]福建农林大学园艺学院,福州350002 [2]福建农林大学林学院,福州350002

出　　处：《林业科学》2004年第6期25-31,共7页Scientia Silvae Sinicae

基　　金：福建省科委重大资助项目 ( 2 0 0 0F0 0 7);福建省自然科学基金资助项目 (B0 110 0 2 6)

摘　　要：　对福建万木林中亚热带常绿阔叶林中林隙和非林隙林分进行调查 ,分析主要树种在林隙内外的数量特征、树种对林隙大小的更新反应规律。结果表明 :不同树种在林隙内和非林隙林分中重要值不同。根据不同树种在林隙内外重要值位序的差异大小 ,将万木林中亚热带常绿阔叶林中树种划分为 7种类型 :(1)只出现于林隙中 ;(2 )只出现于非林隙林分中 ;(3)对林隙更新反应不显著 ;(4 )对林隙有强烈正更新反应 ;(5 )对林隙有强烈负更新反应 ;(6 )对林隙有中等正更新反应 ;(7)对林隙有中等负更新反应的树种。不同树种对林隙大小的更新反应不同 ,山矾在林隙面积为 10 0m2 左右时其更新密度达到最大 ,木荷在林隙面积为 30 0～ 4 0 0m2 时 ,其更新密度达到最大 ,其他几种的更新密度都在林隙面积为 10 0～ 2 0 0m2 时达到最大。Based on the investigation in gaps and non-gaps stands in mid-subtropical evergreen broad-leaved forest at Wanmulin Nature Reserve of Fujian Province, the quantitative characteristics of tree species in gaps and non-gaps stands, the regeneration responses of the major tree species to gaps size were analyzed. The results showed that tree species could be classified into 7 groups according to the change of orders of importance values in gaps and non-gaps stands:(1) species only occurred in gaps;(2)species only occurred in non-gaps stands; (3)respond not significantly to gaps in regeneration; (4)strong positively responsive; (5)strong negatively responsive;(6)moderate positively responsive; (7)moderate negatively responsive. The regeneration responses of the major tree species to gap size were different. Regeneration densities of Symplocos sumuntia peaked at the gap size of about 100 m 2, regeneration densities of Schima superba peaked at the size of 300～400 m 2, while those of the other 4 species peaked at the size of 100～200 m 2.

关 键 词：林隙 更新反应 中亚热带常绿阔叶林 福建 树种 树种 

分 类 号：S754[农业科学—森林经理学]