长白山次生林乔木树种空间分布格局  

Spatial distribution patterns of tree species in a secondary forest in Changbai Mountain

作　　者：张赟[1] 张春雨[1] 赵秀海[1] 武耀祥 周海城 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]吉林长白山保护管理中心保护处,吉林安图133613

出　　处：《生态学杂志》2008年第10期1639-1646,共8页Chinese Journal of Ecology

基　　金：国家林业局“948”项目(2004-4-29);国家“十一五”科技支撑项目(2006BAD03A0804);国家自然科学基金资助项目(30771716)

摘　　要：应用Ripley K函数,分析了长白山一个5.2hm2次生林样地内乔木树种的空间分布以及主要乔木树种的幼树、小树、大树的空间分布和空间关系。结果表明:共调查到34种乔木,其中常见种27种,少见种7种,共计15688株;在27个常见种中,有23个种在空间上主要呈聚集分布,另外4个种主要表现为随机分布;在7个少见种中,均主要表现为随机分布;簇毛槭、假色槭、水曲柳、臭松和红松随着种群发育(幼树→小树→大树)聚集强度逐渐减弱,直至趋向于随机分布,其他树种的空间分布随种群发育未表现出明显的变化规律;在10个主要树种组成的45个种对中,有11个种对表现出显著正相关,1个种对为显著负相关。By using Ripley＇ s K function, the spatial distribution patterns of tree species in a 5.2 hectares secondary forest plot in Changbai Mountain of Northeast China, as well as the spatial distribution and association of dominant tree species at their different growth stages, were analyzed. 34 tree species （27 common species and 7 rare species） were recorded, with a total of 15 688 individuals. Among the 27 common species, 23 species were mainly in aggregate distribution, and the other four had a random distribution. All the 7 rare species were distributed randomly. With the sequence of sapling → small tree→ big tree, Acer barbinerve, Acer pseudosieboldianurn, Fraxinus mandshurica, Abies nephrolepis, and Pinus koraiensis had a decreased aggregate distribution and tended to be distributed randomly, while other species showed no obvious change pattern in their spatial distribution. Among 45 pairs of 10 dominant tree species, 11 pairs had significant positive association, and 1 pair showed significant negative association.

关 键 词：次生林 空间分布 空间关系 Ripley K函数 

分 类 号：S718.5[农业科学—林学]