摘要
对甘肃祁连山自然保护区不同生境中的青海云杉(Piceacrassifolia)的结构和动态进行了研究。结果表明,研究区内的青海云杉种群结构呈倒"J"型,存在明显的径阶缺陷,但种群仍处于稳定发展阶段;种群分布格局呈聚集分布,并向随机分布发展;种群在一切密度下都呈聚集状态,并且聚集度依赖于种群密度;人为和自然干扰以及种群的生物学特性共同造成了种群的聚集分布。
Structure and dynamics of Picea crassifolia population in the Qilianshan National Nature Conservation were studied with the methods of plant population ecology. The result showed that the structure of P. crassifolia population was pour 'J' and had clear diameter defect, but the population was in stable development phase. The population spatial pattern was clump and to random. The population was clump at all density, and aggregate degree depended the population density,which was caused by interference of human and biological characteristics of the population.
出处
《西北林学院学报》
CSCD
北大核心
2004年第2期152-155,共4页
Journal of Northwest Forestry University
关键词
青海云杉
种群
分布格局
聚集分布
Picea crassifolia
population
spatial pattern
clump
