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应用生态学报 ›› 1998, Vol. 9 ›› Issue (5): 453-457.

• 研究论文 • 上一篇    下一篇

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

刘金福1, 洪伟1, 李家和2, 郑燕明3   

  1. 1. 福建林学院资源与环境系, 南平353001;
    2. 福建三明格氏栲自然保护区, 三明365002;
    3. 福建林学院莘口教学林场, 三明365000
  • 收稿日期:1997-10-07 修回日期:1997-11-17 出版日期:1998-09-25 发布日期:1998-09-25
  • 基金资助:

    福建教委科学基金资助项目(J95032)

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

Liu Jinfu1, Hong Wei1   

  1. Department of Resources and Environment, Fujian Forestry College, Nanping 353001
  • Received:1997-10-07 Revised:1997-11-17 Online:1998-09-25 Published:1998-09-25

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。

关键词: 格氏栲, 优势度, 自适应通用模型, 改进单纯形, 耕作方式, 水分利用效率, 光合特性, 干物质积累与分配, 籽粒产量

Abstract: In this paper, a self-adaptive and general model (SGM) ds/dt=rs(1-sθ/kφ) 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 SGMwas more suitable than Logistic model to the actual growth trend of C.kawakamii population, and that the highest growth rate of basal area was in147 years.

Key words: Castanopsis kawakamii, Dominance, Self adaptive and general model, Modified simplex, water use efficiency, grain yield, dry matter accumulation and allocation, tillage practices, photosynthetic characteristics