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Ⅰ、Ⅱ 、Ⅲ 、Ⅳ 级立木都呈聚集分布,大头茶的Ⅰ、Ⅱ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Ⅲ、Ⅳ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。
Abstract:
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.
百度学术
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