摘要
1981—1985年先后在卧龙自然保护区五一棚和唐家河自然保护区自熊坪建立了竹子生态研究区,研究竹子的种群动态变化和干物质产量,估计对大熊猫的负载能力.根据样方数据统计分析,糙花箭竹的年均增长率为12.9%,年均死亡率为8.5%,净增率为4.4%;冷箭竹年均增长率为10.3%,年均死亡率为9.1%,净增率为1 2%;拐棍竹年均增长率为8.6%,年均死亡率为10.6%,每年递减2%.根据地上部分生物量统计,拐棍竹年均净初级生产量为3.6 t/ha,糙花箭竹为3.0 t/ha,冷箭竹为1.5 t/ha.
In 1981—1985 the authors investigated the changes of the population dynamies and the dry- materials output of bamboo and estimated the carrying capacity for giant panda in the study area for bamboo ecology at Wuyipong in Wolong,and Baixiongpin in Tangjiahe.According to the statistical analysis of the sample plot data,the mean annual increase rates of Fargesia Scabrida(F.s),Bashania fangiaana(B.f)and Fargesia robusta(F.r)were 12.9%, 10.3% and 8.6% respectively.The mean annual death rates of those were 8.5%,9.1% and 10.6% respective- ly.The net increase,rates of F.s,B.f and F.r were 4.4%,1.2% and —1.98% respectively,Based on the statistics of the biomass of upperside,the mean net primary outputs of F.r,F.s and B.f were 3.6,3.0 and 1.5 tons per hectare respectively.
出处
《四川师范学院学报（自然科学版）》
1992年第4期268-274,共7页
Journal of Sichuan Teachers College(Natural Science)
关键词
种群动态
生物量
竹亚科
大熊猫
giant panda’s main food
bamboo
population dynamics
biomass
carrying capacity
