摘要
淡黄金花茶Camelia flavida Chang是一种具有黄色花瓣山茶属植物,具有一定的观赏价值。本文以广西弄岗自然保护区2个固定监测样地NG(300m×500m)和CS(100m×100m)内的淡黄金花茶种群为研究对象,分析其种群年龄结构,并利用单变量和双变量g(r)函数分别分析其种群分布格局和3个不同生活阶段之间的空间关联性。结果表明:(1)NG样地淡黄金花茶年龄结构近似呈正态分布,为稳定型;CS样地年龄结构近似倒"J"型,为增长型;(2)淡黄金花茶在NG和CS样地存在显著聚集分布格局的距离分别为24m和35m,前者的聚集程度明显大于后者;(3)相同样地内淡黄金花茶3个不同生活阶段之间的空间关联性相似,在24m范围内均表现显著正相关。
Camellia flavida, one of the Camellia species with yellow flower, is an ornamental species. The age structure, spatial pattern and spatial correlation between three life stages of C. flavida using g（r） function were studied within NG （300 mX 500 m） and CS （100 mX 100 m） plots in Nonggang National Nature Reserve. The results showed that the age structure of C. flavida was approximately normal distribution and approximately inverted ＂J＂ type in NG plot in CS plot, respectively. The aggregated distribution spatial pattern of C. flavida was 24 m and 35 m in the NG plot and CS plot, respectively. Besides, the degree of aggregation in NG plot was significantly larger than the latter. The spatial correlation between three life stages of C. flavida was similar in the same plot and significantly positive correlated within 24 m in two plots.
作者
彭国清
郭屹立
韦素娟
陈海玲
何运林
唐绍清
PENG Guoqing GUO Yili WEI Sujuan CHEN Hailing HE Yunlin TANG Shaoqing(College of Life Science, Guangxi Normal University, Guilin Guangxi 541006, China Ministry of Education Key Laboratory for Ecology of Rare and Endangered Species and Environmental Protection （Guangxi Normal University）, Guilin Guangxi 541006, China Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin Guangxi 541006, China)
出处
《广西师范大学学报（自然科学版）》
CAS
北大核心
2016年第3期138-143,共6页
Journal of Guangxi Normal University:Natural Science Edition
基金
国家自然科学基金资助项目(31260053)
广西研究生教育创新计划资助项目(YCSZ2015093)
广西自然科学基金青年科学基金资助项目(2015GXNSFBA139050)
