南方农业学报2013，Vol.44Issue(1)：106-110,5.DOI:10.3969/j:issn.2095-1191.2013.1.106
牯牛降自然保护区优势树种生长分析
Growth analysis on dominant tree species in Guniujiang nature reserve
摘要
Abstract
[Objective]The study researched the ecological characteristics and growth dynamics of dominant tree species in Guniujiang nature reserve in order to provide reference for the ecological characteristics research and dominant tree species management methods for P. massoniana and C. lanceolata tree species. [ Method ] Based on the establishment of permanent plots, the relationships between diameter class structure, DBH, tree height, and diameter growth rings of dominant tree species P. massoniana and C. lanceolata were investigated and analyzed. [ Result ] Results showed that P. massoniana dominated the canopy layer, but P. massoniana sapling was rare, overall distribution C. lanceolata was considered to be the subdominant tree species in the forest distribution scale. Tree rings showed that the age of two dominant species were similar, but the DBH growth increment in P. massoniana was greater than that in C. lanceolata; also, the tree height growth of P. massoniana was greater than that of C. lanceolata. [Conclusion]In the current mature forest canopy occupancy , the dominance of P. massoniana will be reduced while the dominance of C. lanceolata will gradually increase.关键词
马尾松/松木/径级结构/SDI指数/相对生长/牯牛降自然保护区Key words
size structure/ SDI index/ relative growth/ Guniujiang nature reserve分类
农业科技引用本文复制引用
程希平,杨晓军,巩合德,马月伟,吴利华..牯牛降自然保护区优势树种生长分析[J].南方农业学报,2013,44(1):106-110,5.基金项目
国家自然科学基金项目(31260106 （）
31200482) （）
