-3/2方自疏法则的机理与普适性

应用生态学报 ›› 2002, Vol. ›› Issue (9): 1081-1084.

-3/2方自疏法则的机理与普适性

吴冬秀¹, 张彤², 白永飞¹, 王刚³, 王根轩³

1. 中国科学院植物研究所, 北京 100093;
2. 河南大学生物系, 开封 475001;
3. 兰州大学干旱农业生态国家重点实验室, 兰州 730000

收稿日期:2001-04-25 修回日期:2001-07-18 出版日期:2002-09-15
通讯作者: 吴冬秀,女,1967年生,博士,副教授.E-mail:wudx@ns.ibcas.ac.cn
基金资助:
国家重点基础发展规划项目(G2000018603);河南省教委自然科学基金资助项目(2000170003).

Mechanism and universality of Yoda's -3/2 law of self-thinning in plant population

WU Dongxiu¹, ZHANG Tong², BAI Yongfei¹, WANG Gang³, WANG Genxuan ³

1. Institute of Botany, Chinese Academy of Sciences, Beijing 100093;
2. Biology Department of Henan University, Kaifeng 475001;
3. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000

Received:2001-04-25 Revised:2001-07-18 Online:2002-09-15

摘要/Abstract

摘要： 根据植物构件性理论,对经验规律-3/2方自疏法则进行了理论推导,对-3/2方自疏法则以前不能解释的实验结果进行了理论分析.并以春小麦(Triticum aestivumL.)为材料,设置了4个密度梯度的实验,定期测定个体形态及种群数量指标,证明了-3/2方自疏法则对春小麦作物种群的适用性,同时,基于所测定的植株形态数据,结合数值的量纲变化特点对-3/2方自疏法则的普适性进行了理论解释.

关键词: 构件, -3/2方自疏法则, 可塑性, 可塑相似性, 限制性

Abstract: According to plant modular theory, the Yoda's -3/2 law of self-thinning was theoretically rederived in this paper. With the parameters in the expression of Yoda's -3/2 law being given biological meanings, this article offered universal and rational explanations for relevant data in literatures that could not be explained before. Based on the authors' hypothesis, the experiments on the self-thinning process of spring wheat (Triticum aestivum L.) were conducted. Individual morphological and population quantitative indexes were examined at regular intervals. The results showed that the self-thinning process of spring wheat conformed to Yoda's -3/2 law of self-thinning. At the same time, the universality of Yoda's -3/2 law of self-thinning was explained theoretically by analyzing individual morphological data.

中图分类号:

吴冬秀, 张彤, 白永飞, 王刚, 王根轩. -3/2方自疏法则的机理与普适性[J]. 应用生态学报, 2002, (9): 1081-1084.

WU Dongxiu, ZHANG Tong, BAI Yongfei, WANG Gang, WANG Genxuan . Mechanism and universality of Yoda's -3/2 law of self-thinning in plant population[J]. Chinese Journal of Applied Ecology, 2002, (9): 1081-1084.

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