格氏栲种群生态学研究 Ⅲ.格氏栲种群优势度增长动态规律研究  

Population ecology of Castanopsis kawakamii Ⅲ. Growth dynamics of dominance of Castanopsis kawakamii population.

作　　者：刘金福[1] 洪伟[1] 李家和 郑燕明[3] 

机构地区：[1]福建林学院资源与环境系 [2]福建三明格氏栲自然保护区 [3]福建林学院莘口教学林场

出　　处：《应用生态学报》1998年第5期453-457,共5页Chinese Journal of Applied Ecology

基　　金：福建教委科学基金

摘　　要：采用有限空间种群增长的逻辑斯谛模型探讨格氏栲种群基面积增长规律．提出自适应通用模型ｄｓ／ｄｔ＝ｒｓ（１－ｓθ／ｋφ）．该模型包括Ｌｏｇｉｓｔｉｃ模型、Ｓｍｉｔｈ模型、Ｇｏｍｐｅｒｔｚ模型、崔Ｌａｗｓｏｎ模型和ＺＬｏｇｉｓｔｉｃ模型；运用改进单纯形对自适应通用模型进行优化，拟合结果比Ｌｏｇｉｓｔｉｃ模型更符合格氏栲种群实际增长趋势，增长速度最大是在１４７年．In this paper, a self adaptive and general model (SGM) ds/dt=rs(1-s θ/k φ) was proposed to approach the growth dynamics of tree basal area of Castanopsis kawakamii population, which includes Logistic model, Smith's model, Gompertz's model, Cui Lawson's model and Zhang's Logistic model. The method of modified simplex was applied to optimize the SGM, and the fitting results show that SGM was more suitable than Logistic model to the actual growth trend of C. kawakamii population, and that the highest growth rate of basal area was in 147 years.

关 键 词：格氏栲优势度自适应通用模型改进单纯形 

分 类 号：Q948.15[生物学—植物学] Q949.736