川西箭竹群落生态学研究

箭竹是大熊猫的主食竹，主要分布在亚高山地带，是亚高山森林下层重要的优势层片。对箭竹生态学研究主要集中在种群结构、生长、更新、生物生产力、繁殖特性及其在亚高山森林系统水土保持、养分平衡等生态功能发挥中的作用等几方面。而有关箭竹层片对整个森林生态系统养分循环动态过程和机理、箭竹种群生活史动态格局、开花机理、人为干扰下箭竹群落及森林群落更新的过程等方面的研究相对滞后。建议加强箭竹层片在亚高山针叶林生态系统结构和养分循环动态过程中的作用，箭竹克隆生长过程与森林群落更新过程的互动机理、箭竹种群生活史过程中养分源库动态、人为干扰下箭竹克隆种群更新过程与森林更新过程互动等方面的研究。

Ecological Studies on Bamboo (Fargesia) Communities

Bamboos (Fargesia),a main feed of giant panda,distribute mainly in subalpine region with an important effect on the structure and nutrient cycle of the subalpine forest ecosystem. Over the past decades,studies on bamboo ecology focus mainly on the structure,dynamics,productivity and regeneration of bamboo communities and its ecological functions in hydraulic and soil aspects. There is little information on the pattern of life circle,flowering mechanisms of bamboos,roles of bamboos in the nutrient cycle of forest ecosystem,and the effects of human disturbances on regeneration of bamboo population. The issues including the relationship between the sink-source dynamics in bamboo communities and flowering mechanisms,bamboo's clonal growth and forest regeneration,and human disturbances and bamboo regeneration should be emphasized in terms of forest ecosystem process in the future.