项目名称: 摩天岭北坡植物功能性状对环境因子的动态响应
项目编号: No.31260122
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 生物科学
项目作者: 田青
作者单位: 甘肃农业大学
项目金额: 49万元
中文摘要: 植物性状动态与环境因子关系是近年来全球变化研究中一项十分重要的内容。而从植物功能性状到植物功能多样性以及植物功能型概念的应用和发展,全球范围植物功能性状测度列表和测度方法的逐渐积累和日臻完善,使得进一步定量分析植物性状对区域环境因子的动态响应成为可能,进而更深入地进行植物功能性状与生态系统功能关系的研究。本研究拟通过岷山山系摩天岭北坡自然植物群落样方调查、植物功能性状测度以及环境因子(基础生态因子和地理空间因子)的分析和测定,探讨不同环境梯度下物种水平植物功能性状间的平衡关系,群落和功能群水平基于植物功能性状的植物功能多样性变化,剖析区域尺度影响山地植被植物功能性状的主要环境驱动因子以及功能群水平和系统发育背景植物功能性状的趋同或分异及其对环境因子的响应。研究成果将有助于深刻揭示青藏高原东北缘生态过渡带植物功能性状组合特征、空间格局及其对环境变化的响应和适应规律。
中文关键词: 植物功能性状;环境因子;动态响应;;
英文摘要: Plant functional traits,defined as morpho-physio-phenological traits which impact fitness indirectly via their effects on growth, reproduction and survival,the three components of individual performance, link environmental factors,individual plants and ecosystem structures,processes and functions.With the application of the plant functional traits'concept and the improvement of plant traits measurement system,Plant functional traits studies play an important role to reveal the regulations of plant physiology and ecosystem processes,and to analyse the trade-offs of the functional traits from species to community,the classification of the plant functional types based on the plant functional diversity,and to analyse the vegetation dynamic which response to the environmental factors. The project focuses on the present vegetation types and their functional traits at the north slope of Motianling mountain in Baishuijiang National Nature Reserve. According to the field investigation,plant traits(vegetative traits,whole-plant traits,leaf traits,stem traits,regenerative traits etc.) and environmental factors(based ecological factors and geographical space factors),the database of vegetation plot,plant functional traits and environmental factors will be analysed. Statistical methods, such as correlational analysis,ANOVA,r
英文关键词: plant functional traits;environmental factors;dynamic response;;