珍稀植物监测是大型森林长期监测样地研究的重要内容。笔者主要统计分析了官山常绿阔叶林动态监测样地中珍稀树木,还重点讨论了南方红豆杉、闽楠这两种数量较多的国家重点保护树木的空间分布格局及其关联性。结果表明:12 hm~2样地中有国家重点保护植物9种,466株,分别占样地总物种数(D≥1.0 cm)的2.37%、0.55%;另有江西省重点保护植物29种,4 790株;这些树种空间分布特征各不相同,如南方红豆杉呈随机分布,闽楠在小尺度上呈均匀分布,在大尺度上呈随机分布,两树种表现出负空间关联关系。这些整理工作为大样地的长期研究奠定基础,这些发现为深入认识珍稀植物提供参考。
Dynamic monitoring of rare plants is an important part of the researches on large forests plot. The identification and statistics of rare trees in Guanshan Evergreen Broad-Leaved Forest Dynamic Plot(GSP) were carried out, and spatial distribution of Taxus chinensis var. mairei and Phoebe bournei were analyzed. The results showed that there were 9 national key protected plants with 466 individuals, accounting for 2.37% of total species and 0.55% of total individuals(DBH1.0 cm)in GSP, additionally 29 species 4 790 individuals of Jiangxi provincal protected plants; Spatial pattern of various species are different, such as a random distribution for T. chinensis var. mairei, a uniform distribution in a small scale, a random distribution on a large scale for P. bournei, and two species shared an negative spatial relationship in plot. These sort work laid a foundation for long-term study of the plot, which also provided references for the further understanding of these plants.