作　　者： ; ; ;

机构地区： 西北第二民族学院

出　　处： 《生态学杂志》 2006年第2期222-224,共3页

摘　　要： 采用样方法对宁夏荒漠草原植物群落进行了调查,对群落结构、功能群物种组成和物种多样性以及群落生产力的关系进行探讨。结果表明,群落生产力除受物种多样性的影响外,也受物种本身特征和环境资源的影响。在荒漠草原中功能群盖度与群落初级生产力无显著的相关关系。功能群内物种多样性、物种数和个体数量上呈现一定的互为消长关系。 The analysis on the relationships between community structure, functional group composition, species diversi ty, and productivity of desert steppe in Ningxia showed that the community productivity was affected not only by species diversity, but also by the characters of species and environmental resources. No significant eorrelation was found between the coverage per functional group ,and the primary productivity of the community. There was a trade-off relationship between the species diversity and the numbers of species and individuals in the community.

关 键 词： 荒漠草原 群落结构 功能群 物种多样性 生产力

领　　域： [农业科学]