缙云山风灾迹地常绿阔叶林生态恢复过程中优势种群分布格局和动态  

Distribution Pattern and Dynamics of Dominant Population in the Progression of Ecological Restoration of Evergreen Broadleaved Forest after Wind-damage in Jinyun Mountain

作　　者：石胜友[1] 尚进[1] 田海燕[1] 李旭光[2] 

机构地区：[1]涪陵师范学院 [2]西南师范大学生命科学学院,重庆400715

出　　处：《武汉植物学研究》2003年第4期321-326,共6页Journal of Wuhan Botanical Research

基　　金：国家自然科学基金资助项目(39570130)。

摘　　要：根据1992、1994、1996、1999和2001年对缙云山风灾迹地常绿阔叶林生态恢复的调查资料,对优势种群分布格局和动态进行了研究。结果表明:马尾松和大头茶的幼苗在恢复过程中不断减少,川灰木、小叶栲和其他常绿阔叶林树种的幼苗在增加;优势种群在不同大小级上分布格局不同,小叶栲和川灰木的 、 、 、 级立木都呈聚集分布,大头茶的 、 级苗木在1996年前呈聚集分布,1996年后呈随机分布,大头茶和马尾松的 、 级立木呈随机分布;马尾松和大头茶的年龄结构呈衰退型,川灰木和小叶栲的年龄结构呈增长型。We investigated the species,quantity and growth state of the plants at the winddamaged slash in 1992,1994,1996,1999 and 2001.On the basis of the investigation into ecological restoration of evergreen broadleaved forest of winddamaged slash in Jinyun Mountain,we studied the distribution pattern and dynamics of dominant population.The result indicates that seedlings of Pinus massoniana and Gordonia acuminata are decreasing,but the seedlings of Costanopsis carlesii var.spinulosa,Symplocos setchuanenesis and other evergreen broadleaved trees are increasing.Patterns of spatial dispersion of the dominant population are varied with size class,the clumped distribution appears in Costanopsis carlesii var.spinulosa and Symplocos setchuanenesis,Possion distribution in Ⅰ and Ⅱ class of Gordonia acuminata after 1996,before 1996,it appeared clumped distribution.Ⅲ and Ⅳ class in Pinus massoniana and Gordonia acuminata are appearing possion distribution.The agestructure of Pinus massoniana and Gordonia acuminata appeared declining,and Costanopsis carlesii var.spinulosa,Symplocos setchuanenesis appeared growing.

关 键 词：生态恢复 优势种群 年龄结构 风灾迹地 缙云山 

分 类 号：Q948[生物学—植物学]