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大熊猫取食对巴山木竹更新补充的影响研究

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巴山木竹是秦岭大熊猫的主要食源,大熊猫的取食干扰是影响巴山木竹种群动态的重要因子。为了解大熊猫取食干扰对巴山木竹种群更新补充的影响,在佛坪自然保护区内设置了8个取食样地和非取食对照样地,对取食样地和对照样地发笋和成竹动态进行了比较研究。结果表明:1)大熊猫取食样地比对照样地有更高发笋量和退笋率,取食样地中的竹笋基径明显低于对照样地;2)大熊猫取食样地竹笋的成竹率显著低于对照样地,但成竹补充率高于未取食样地,并且取食样地成竹的基径和高度都显著低于未取食样地。以上结果表明,大熊猫的取食干扰可以提高取食点巴山木竹的更新补充,但也会造成竹笋和成竹质量的下降。研究结果对于大熊猫栖息地的保护和管理具有重要意义。
Effects of Giant Panda Herbivory on the Clonal Regeneration of Bashania fargesii Population
Bashania fargesii is an important food resource for giant panda occurring in the Qinling Mountains,giant panda herbivory is the main factor influencing the regeneration of B.fargesii population.In order to reveal the effects of giant panda herbivory on the clonal regeneration of B.fargesii,8 paired of herbivory(naturally grazed by giant pandas)and control(non-grazed by giant pandas)plots were set up in the Foping Nature Reserve to compare the clonal regeneration dynamics of B.fargesii.The results showed that 1)herbivory plots had more abundant shoots and higher rate of degraded shoots than control plots,and the shoots in herbivory plots were thinner than control plots;2)the percentage of bamboo culm form-ing in herbivory plots was lower than that in control plots,but the annual supplementary rate of adult baboo was higher than that in control plots.The basal diameter and height of new bamboo were lower than those in control plots.These results indicate that giant panda herbivory can improve the clonal regeneration of B.fargesii,but reduce the quality of shoots and new bamboo.Our study elucidate the effects of giant panda herbivory on the regeneration of B.fargesii,which is of great significance for conservation and management of the giant panda.

Bashania fargesiiregenerationgiant pandaherbivory disturbance

周哲、吉应政、白桦、王雪晴、刘志、党高弟、郭垚鑫、岳明

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西北大学 西部资源生物与现代生物技术教育部重点实验室,陕西 西安 710069

西北大学 生命科学学院,陕西 西安 710069

陕西佛坪国家级自然保护区管理局,陕西 汉中 723400

巴山木竹 更新 大熊猫 取食干扰

2025

西北林学院学报
西北农林科技大学

西北林学院学报

北大核心
影响因子:1.078
ISSN:1001-7461
年,卷(期):2025.40(1)