羊草群落植物生活型功能群多样性变化与环境因子关系的研究  

Study on Relation between Diversity Changes of Plant Life-Form Functional Groups and Environment Factors in Leymus chinensis Communities

作　　者：韩梅[1] 杨利民[1] 王少江 

机构地区：[1]吉林农业大学吉林省生态恢复与生态系统管理重点实验室,长春130118 [2]吉林省长岭县气象局,长岭131500

出　　处：《吉林农业大学学报》2005年第1期59-63,67,共6页Journal of Jilin Agricultural University

基　　金："973"国家重点基础研究发展规划项目(G1999043407);国家重点实验室培育基地吉林省生态恢复与生态系统管理重点实验室开放基金项目(DS2004 20)

摘　　要：研究了中国东北样带以羊草(Leymuschinensis)为建群种或共建种的草原群落植物生活型功能群组成及其与群落初级生产力和环境变化的关系。结果表明:地面芽植物生物量没有明显的地带性规律;地上芽、地下芽和一年生植物生物量与群落生物量相关系数及占群落生物量比例过低,而且变异性最大。认为植物生活型功能群不宜作为评估和预测本研究区域植被变化的关键植物功能型。We analyzed the relations of plant life-form groups and community biomass and environment changes in the grassland communities of Leymus chinensis as edificator along Northeast China Transect (NECT). The results showed: hemicryptophytes biomass did not have clear zonality law; relative coefficient between chamaephytes, cryptophytes, therophytes biomass and community biomass and theirs percentage accounting for community biomass were lower, moreover, the variant coefficient of their biomass was higher. We concluded that plant life-form function groups were unsuitable as the key plant function types to evaluate and forecast the changes of region vegetation.

关 键 词：中国东北样带 羊草群落 植物功能型 生活型 环境因子 

分 类 号：Q145.2[生物学—生态学]