Miao Ning, Liao Li-Huan, Li Bo, Zheng Wen
Ministry of Education Key Laboratory of Bioresource and Eco-environment, College of Life Sciences, Sichuan University, Chengdu 610065, China.
Ying Yong Sheng Tai Xue Bao. 2012 Apr;23(4):985-90.
To explore the natural regeneration and its affecting factors of Fargesia robusta clone population, the main diet bamboo for giant panda, after Wenchuan Earthquake in 2008, an investigation was conducted on the growth and emergence of the bamboo shoots at three habitats with different intensities (strong, moderate, and null) of earthquake disturbance. In the moderately and undisturbed habitats, the basal diameter of the survived bamboo shoots was significantly greater, as compared with that in strongly disturbed habitat, and the height of the survived shoots decreased in the order of undisturbed > moderately disturbed > strongly disturbed habitat. No significant difference was observed in the density of new bamboo shoots among the three habitats, but the density of the survived bamboo shoots was significantly higher in the strongly and moderately disturbed habitats than in the undisturbed habitat, and the density of 1- and 2 years old bamboos showed a significant positive correlation with the density of dead bamboos. There existed significant positive correlations between the densities of new bamboo shoots, survived bamboo shoots, and 1-, 2-, and more years old bamboos, but significant negative correlations between the density of 1- and 2 years old bamboos and the coverage of gravels and slipping soils by Wenchuan Earthquake in 2008, and between the density of survived bamboo shoots and their canopy coverage.
为探究大熊猫主食竹缺苞箭竹克隆种群在2008年汶川地震后的自然更新及其影响因素，对三个受地震干扰强度不同（强、中、无）的生境中竹笋的生长和出土情况进行了调查。在中度干扰和未受干扰的生境中，存活竹笋的基部直径显著大于强干扰生境中的竹笋，且存活竹笋的高度排序为未受干扰生境>中度干扰生境>强干扰生境。三个生境中新竹笋的密度未观察到显著差异，但强干扰和中度干扰生境中存活竹笋的密度显著高于未受干扰生境，且1年生和2年生竹子的密度与死亡竹子的密度呈显著正相关。新竹笋、存活竹笋以及1年生、2年生和多年生竹子的密度之间存在显著正相关，但2008年汶川地震造成的1年生和2年生竹子的密度与砾石和滑坡土壤的覆盖率之间以及存活竹笋的密度与其冠层覆盖率之间存在显著负相关。
