海南中部山区次生林优势种枫香发育规律研究

对海南中部山区次生林优势种枫香种群动态开展了比较全面的研究,结果表明枫香种群个体的发育基本上遵循Logistic方程,在胸径＜2 cm的苗龄期为生长缓慢期;在胸径为2～27 cm的发育阶段为生长迅速期,并且在这一时期内,个体的年龄与树高、胸径基本上呈线性关系,每年约长高0.807 m和胸径增长0.819 cm;胸径大于27 cm后为树高第二个生长缓慢期.研究结果还表明枫香种群分布均不具备初生正常种群或旺盛种群或成熟种群的种群特征,而表现出演替系列种特殊的种群发育特征,即种群在其发生地表现出缺少自我更新能力.

Study on the Development Regularity of the Dominant Species (Liquidambar formosana) of the Secondary Forest in the Central Mountain Areas in Hainan Island

The developmental regularity of dominant species (Liquidambar formosana) of the secondary forest in the central mountain areas in Hainan Island is studied in this poper. The studied results show that the individual development of this dominant population follows the Logistic equation, and the trees grow quickly when the diameter at breast high is from 2 cm to 27 cm, and plants grow slowly beyond the stage. There is a linear relation between the tree age and the be height, the be age and the diameter at breast high. During this stage, it grows 0.807 cm(tree height) and 0. 819 cm(diameter at breast high) Per annual. The results also show that the Liquidambar formosana population isn't with the characteristics of primary normal population or flourish population or mature population, but it shows the special characteristics of the pioneer population development of secondary forest, which has not capability of regeneration by it self under forest.