摘要
从保护生态学的观点出发 ,对 1 0个濒危植物的地理分布、生境条件、种群数量动态、空间分布格局、种间关系、种群的生命表、生殖力表、有性生殖、无性繁殖等种群生态学特征进行了综合分析。论述了濒危植物以光合、蒸腾、呼吸为主的生理生态学规律 ;预测种群数量动态的 Leslie矩阵、刻画种群空间分布格局的模型、刻画种群生长和数量增长的 Logistic方程和多元回归模型所反映出的生态学特征。分析了濒危植物种群动态、发展趋势以及在内外因素作用下的生态学特征和过程。针对濒危植物保护研究存在的问题 ,从生态学角度对我国未来濒危植物保护研究应注意的问题提出了建议。
The conservation biological study on 10 typical endangered plant species (Cycas panzhihuaensis,Cathaya argyrophylla,Liriodendron chinense,Paeonia suffruticos subsp. Spontanea,Cimicifuga nanchuanensis,Eleutherococcus brachypus,Mosla hangzhouensis,Adenophora lobophlla,Ranalisma rostratum,Ophiopogon xylorrhizus) from China were carried out with the same aim and research method, supported by the key important projects of the National Natural Science Foundation of China during the period of the 8 th five year plan(1993～1997), and many kinds of the results were published. In order to get some information on common regulations on the endangered ecological process and the biological characteristics of tendency to endangered status, the geographic distribution, the habitat conditions, the population dynamics, the characteristics of sexual reproduction and asexual propagation of 10 endangered species were reviewed comprehensively. The common regulations such as photosynthesis, transpiration, respiration of the endangered plants in the different conditions were discussed. The modeling of the Leslie matrix, time series analysis for predicting population dynamics, fractal theory for describing population distribution pattern, equations of Logistics for population growth of 10 endangered plant populations were comprehensively explained. From the comprehensive analysis, general population ecological regulations of the endangered plants were summarized, and some of the regulations or characteristics that were unclear or did not appeared from the solitary study for one species, were clear.(1) The distribution areas of the endangered plant species belonged to the shape of island or strait area which all were contracting; (2) The analysis on age structure of the endangered species indicted that most populations had declining status and their spatial distribution patterns were a conglomeration; (3) Normally the adapting and living abilities of the most endangered species were not stronger than the widespread species;
出处
《生态学报》
CAS
CSCD
北大核心
2002年第9期1512-1520,共9页
Acta Ecologica Sinica
基金
国家重点基础研究资助项目 (G2 0 0 0 0 4680 7)
中国科学院知识创新资助项目 (KZCX1 -0 6-2 )
关键词
濒危植物
种群生态学特征
致危因素
endangered plant population
conservation ecology
endangering mechanism
conservation strategies and measurements
