摘要
拐棍竹是大熊猫的主食竹种之一。通过对拐棍竹年发笋规律、种群密度及种群年龄结构的研究,其结果是:①拐棍竹发笋总数与二年生竹数量关系,y_1=5.1266+0.3822x_2;②竹笋成活数与一、二年生竹数的关系,y_2=0.6450+0.3159x_1+0.2627X_2;③拐棍竹竹茎可存活10～13年左右,④拐棍竹种群处于稳定状态。
Fargesia robusta is one of the bamboo species of the staple food for giant panda. The shoot-sprouting pattern, bamboo's population density, and age structure of the population were studied. It has been concluded that Y_1=5.1266+0.3822X_2 in the relationship between shoot-sprouting amount and quantity of growed bamboo culm of two years old, Y_2=0.6450 + 0.3159X_1+0.2627X_2 in the regression relationship between the survival amount of bamboo shoots and the amount of growed bamboo culm of one year and two years old. Bamboo culm of Fargesia robusta can be survived to about 13～15 days. In the age range which bamboo culm can be survived, the bamboo culm at different age-grade is existed in the population of Fargesia robusta, and its quantity at any age-grade will be decreased. But the population will tend to being stable because of the increasing of survival bamboo shoots.
出处
《竹子研究汇刊》
北大核心
1992年第3期55-64,共10页
Journal of Bamboo Research
关键词
拐棍竹
种群动态
Fargesia robusta
Population Dynastics
