羊草种群地上部生物量与株高的分形关系  

Fractal relationship between aboveground biomass and plant height of Aneurolepidium chinense population

作　　者：马克明[1] 祖元刚[2] 

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]东北林业大学森林植物生态学开放研究实验室,哈尔滨150040

出　　处：《应用生态学报》1997年第4期417-420,共4页Chinese Journal of Applied Ecology

基　　金：国家教委优秀年轻教师基金!(No.436);国家自然科学基金!(39470129)

摘　　要：应用分形几何学（Ｆｒａｃｔａｌ ｇｅｏｍｅｔｒｙ）的原理和方法对羊草（Ａｎｅｕｒｏｌｅｐｉｄｉｕｍ ｃｈｉ－ ｎｅｎｓｅ）种群地上部生物量与株高的关系进行了研究．结果表明．羊草种群的地上部生物量 与株高存在很好的静态分形关系，所得分形维数是对地上部生物量在各器官中积累规律 （生物量配比）的表征；羊草种群地上部生物量与株高的动态分形关系表明在整个生长季 内该种群地上部生物量的增长具有自相似性．是一个分形生长过程，增长规律为分形维数 值Ｄ；在此基础上建立了羊草种群的分形生长模式．认为成熟植株可以看作是其幼苗经生 长放大过程而得到的．By the use of the principles and methods of fractal geometry, the relationship between aboveground biomass and plant height of Aneurolepidium chinense population was studied. The results show that there is a good static fractal relationship between them, and the resulted fractal dimension is an efficient description of foe accumulation of aboveground biomass in each organ. Their dynamic fractal relationship shows that during the whole growing season, the increase of aboveground biomass has a selfsimilarily, being a fractal growth process, and the pattern of this increase is the fractal dimension D. Baed on these results, a fractal growth model of Aneurole- pidium chinense population is established, which regards the mature grass as the result of the amplification of seedling growth.

关 键 词：羊草 种群 地上部生物量 株高 分形 草原 

分 类 号：S543.901[农业科学—作物学]