阿尔金山自然保护区东部典型植物群落的物种组成、多样性及生物量  

Species composition,diversity,and biomass of representative plant communities in eastern Arjin Mountain Nature Reserve,Northwest China

作　　者：吴娱[1] 张相锋[1] 董世魁[1] 刘世梁[1] 张翔 苏旭坤[1] 王学霞[1] 李媛媛[1] 

机构地区：[1]北京师范大学环境学院水环境模拟国家重点实验室,北京100875 [2]新疆巴音郭楞自治州阿尔金山国家级自然保护区管理局,新疆库尔勒841000

出　　处：《生态学杂志》2013年第9期2250-2256,共7页Chinese Journal of Ecology

基　　金：环保部环保公益项目(201209033);国家"十二五"科技支撑项目(2012BAC01B02)资助

摘　　要：以阿尔金山国家级自然保护区东部主要植物群落为研究对象,采用样方法调查不同群落的结构特征、物种多样性、群落生产力及其与环境因子之间的相关关系。结果表明:植物群落物种多样性由卡尔丘喀风蚀草原、阿坝堤坝沼泽草甸、喀尔墩草原、伊协克帕提中心站草原、伊协克帕提荒漠依次减小,且不同群落多样性指数与坡度、土壤pH呈显著负相关,与土壤水分呈显著正相关;对各植物群落不同功能群生物量分析发现,莎草科植物主要集中于阿坝堤坝沼泽草甸,禾本科在伊协克帕提中心站附近大量分布,豆科则只出现在喀尔墩草场和伊协克帕提草场;由于植物资源的分布限制了食草动物对食物的选择,因而伊协克帕提中心站附近草场、阿坝堤坝草场等作为野生动物主要食物源和栖息生境,需要重点保护。By using quadrat method, this paper studied the structure, species diversity, and pop- ulation productivity of representative plant communities in eastern Aerjin Mountain Nature Re- serve, Northwest China, with the relationships between these plant communities＇ characteristics and environmental factors analyzed. The species diversity of the plant communities was in the or- der of eroded steppe at Kaerqiuka 〉 wet meadow at Abatiba 〉 steppe at Kaerdun 〉 steppe at Yix- iekepati Central Station 〉 desert at Yixiekepati. The diversity indices of the plant communities were negatively correlated to slope and soil pH, and positively correlated to soil moisture. The analysis on the biomass of different functional groups of the plant communities showed that Cyper- aceae distributed mostly in wet meadow, while Poaceae distributed mainly in the steppe near Yix- iekepati Central Station. Leguminosae only appeared in the steppe at Kaerdun. Since the distri- bution of plant resources limited the herbivores＇ selection for foods, the steppe near Yixiekepati Central Station and the wet meadow at Abadiba should be strictly protected as the key food sources and habitats for wildlife.

关 键 词：阿尔金山国家级自然保护区 群落多样性 功能群 地上生物量 环境因子 

分 类 号：Q948.3[生物学—植物学]