天宝岩典型森林群落粗死木质残体现存量研究  

Storage of coarse woody debris in three typical forests in Tianbaoyan National Nature Reserve,Fujian Province of eastern China

作　　者：肖石红[1] 何东进[1] 游惠明[1] 刘进山 蔡昌棠 

机构地区：[1]福建农林大学林学院 [2]福建永安天宝岩国家级自然保护区

出　　处：《北京林业大学学报》2012年第5期64-68,共5页Journal of Beijing Forestry University

基　　金：教育部博士学科点基金项目(20103515110005);国家自然科学基金项目(30870435);福建省科技厅重点项目(2009N0009);福建省自然科学基金项目(2008J0116;2011J01071)

摘　　要：对天宝岩国家级自然保护区长苞铁杉林、猴头杜鹃林和柳杉林典型森林群落粗死木质残体(CWD)现存量进行研究。结果表明:1)天宝岩3种典型森林群落CWD现存量分别为33.6、45.3、31.8t/hm2,处于我国热带和亚热带地区森林的中间水平;2)3种森林群落中,CWD的不同形态组成较不同腐烂等级对现存量差异的贡献度更大;3)猴头杜鹃林和长苞铁杉林内各种类型CWD现存量表现为倒木>枯立木>树桩,柳杉林内CWD现存量则为树桩>枯立木>倒木;4)中高腐烂等级CWD现存量为猴头杜鹃林>长苞铁杉林>柳杉林,而在低腐烂等级中呈现长苞铁杉林>猴头杜鹃林;5)在柳杉林内,未受人为干扰地段枯立木和树桩所占比例明显高于受干扰地段,而倒木的比例则很低。The storage of coarse woody debris （ CWD ） in three typical forests （ Tsuga longibracteata, Rhododendron simiarum,Crytomeria fortunei） at Tianbaoyan National Nature Reserve,Fujian Province of eastern China was investigated. The results were as follows： 1 ） the storage of CWD in the three typical forests was 33. 6,45. 3 and 31. 8 t / hm 2 ,which was at the middle level of tropical and subtropical regions in China. 2 ） In different decay classes, CWD forms made greater contribution to the CWD storage differences. 3） In R. simiarum and T. longibracteata forests,CWD storage distribution was found highest in fallen trees,middle level in snags,and lowest in stumps; while in C. fortunei forests,the distribution was highest in snags,middle level in stumps and with the lowest level in fallen trees. 4） In the middle and high decay classes,this study indicated that the CWD storage in R. simiarum forests was higher than that in T. longibracteata forests,and the storage in C. fortunei forests stayed the lowest; in the low decay class,the CWD storage was highest in T. longibracteata forests,lowest in C. fortunei forests,R. simiarum forests lied in middle. 5） The ratio of snags and stumps in forests,which was free from human interference,was apparently higher than that in C. fortunei forests,but the proportion of fallen trees was very low.

关 键 词：天宝岩国家级自然保护区 粗死木质残体 现存量 

分 类 号：S718.5[农业科学—林学]