项目名称: 横断山区高山流石滩垫状植物适应策略及协作共存机制的研究
项目编号: No.31270005
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 生物科学
项目作者: 杨扬
作者单位: 中国科学院昆明植物研究所
项目金额: 69万元
中文摘要: 青藏高原东南部横断山区拥有最为丰富的高山垫状植物代表类群,通过青年科学基金项目的开展,研究者对于此高度特化植物生活型的生态适应性及其与其他植物种类间的关系和在高山流石滩生态系统内的功能有了初步的认识,获取并积累了高山垫状植物分布规律及其生物学及生态学特性的原始数据。在本研究中,申请者将以青年项目的相关研究结果和结论为基础,结合野外连续观测和实验室检测及人工控制试验,对(1)高山垫状植物生存适应策略及进化驱动力(2)受助植物种类对于高山垫状植物“协作共存机制”的响应(3)高山垫状植物“协作共存机制”对于土壤微生物群落物种多样性格局的影响进行探索和研究。从不同角度和更深层面探讨和诠释以高山垫状植物为代表的横断山区高山植物种类在面临时,空方向选择压力时的生存策略,种间关系及其对于极端高海拔生态系统内物种构成和多样性特征的影响。
中文关键词: 青藏高原;横断山区;垫状植物;协作共存;适应进化
英文摘要: Due to its unique climate and topography patterns, the alpine zone of Hengduan Mountain areas, ES China has the most abundant species belonging to the highly specialized life form of cushion plant. Via the studying of cushion structure in the past three years supported by the project of NSFC, we learned some important information of adaptive strategies and facilitative effects of cushion species in the study region. Based on those findings and combined with advances in the ecology of alpine plant, we will continue the research of cushion species at elevations of Hengduan Mountains and farther address (1) the relationship between eco-physiological traits of cushion species and temporal and spatial factors, such as altitude gradient and weather conditions within different period of growing season; (2) the responses of beneficiary species in aspects of survival, growth and reproduction to the facilitation produced by cushion life form; (3) the impact of the ecosystem engineering effects of cushion species on the composition and diversity patterns of microbial community.
英文关键词: Qinghai-Xizang Plateau;Hengduan Mountains;Cushion plant;Facilitation;Adaptation and Evolution