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应用生态学报 ›› 1999, Vol. 10 ›› Issue (2): 155-158.

• 研究论文 • 上一篇    下一篇

刺旋花种群形态参数的通径分析与亚灌木个体生物量建模

孙书存, 钱能斌   

  1. 中国科学院成都生物研究所, 成都 610041
  • 收稿日期:1996-04-15 修回日期:1997-09-29 出版日期:1999-03-25 发布日期:1999-03-25
  • 通讯作者: 孙书存,男,1969年生,理学博士.现为华东师范大学河口海岸国家重点实验室博士后,主要研究方向为植物种群生物学、生态系统生态学,已发表论文10篇.E-mail:guikuichen@yahoo.com E-mail:guikuichen@yahoo.com
  • 基金资助:

    国家“八五”科技攻关项目(85-19-01).

Path analysis of morphological parameters of Convolvulus tragacuthoiedes population and individual biomass modeling of subshrubs

Sun Shucun, Qian Nengbin   

  1. Chengdu Institute of Biology, Academia Sinica, Chengdu 610041
  • Received:1996-04-15 Revised:1997-09-29 Online:1999-03-25 Published:1999-03-25

摘要: 对刺旋花4种形态参数的通径分析表明,冠幅(C)对种群生物量作用最大,其它依次为分枝数(BN)、基径(BD)和高度(H).在此基础上,选取CH和常用变量D2H,就7种常规方程对生物量建模的效果进行比较,并同时建立营养器官和单株总生物量的预测方程。结果表明,选取变量CH较D2H合适,线性回归方程较其它方程准确直观,其中单株生物量择优预测方程为Y=12.10+0.0105CH(R=0.983,P<0.01).

关键词: 刺旋花, 形态参数, 通径分析, 生物量建模, 自然保护区, 生态值, 戴云山, 地块选择, 自学习, 禁忌搜索

Abstract: Path analysis of four morphological parmeters of Convolvulus tragacuthoiedes shows that crown(C) contributed most to the population biomass,followed by branch number(BN), base diameter(BD)and height(H).Variable CH and D2H were used to build empirical models to compare the efficiency of biomass modeling,and the predicting equations for biomass of vegetative organs and individual plants were built.The result suggest that the models built on CHwere more appropriate than those on D2H, and the linear equation had the highest accuracy among the models.The optimum equation for predicting the individual biomass was: Y =12.10+0.0105 CH (R=0.983,P<0.01).

Key words: Convolvulus tragacuthoiedes, Morphological parameter, Path analysis, Biomass modeling, self-learning, site selection, ecological value, Daiyun Mountain, tabu search, nature reserve