江苏野生苔草属植物资源调查与多样性分析  

Nature Resource and Species Diversity of Carex in Jiangsu Province

作　　者：庞莉莉[1] 李玉双[1] 陈洁[1] 孟艳[1] 王庆亚[1] 

机构地区：[1]南京农业大学,南京210095

出　　处：《东北林业大学学报》2015年第5期75-79,共5页Journal of Northeast Forestry University

基　　金：江苏省生物物种资源调查(T2010-1)

摘　　要：采用现场踏查和样地调查相结合的方法,通过多次对江苏野生苔草属(Carex)植物资源实地调查以达到对植物资源和植物多样性保护的目的。结果表明:共记录到江苏省野生苔草属植物资源45种,占全国苔草属植物种数的9%;北亚热带常绿落叶阔叶混交林分布的苔草属植物最多,占物种总数的68.89%,这与苔草属植物的生境密切相关;苔草属植物主要集中分布在低海拔段,相邻海拔段苔草属植物相似性系数较高;主要苔草属植物群落的物种多样性指数变化和均匀度指数、物种丰富度指数变化呈正相关,和优势度指数变化呈负相关。By a combination method of field investigation and sampling investigation, we investigated the Carex plant resources in Jiangsu Province with several field surveys to protect the diversity of plants. The specimen and germplasm collected 45 spe- cies, accounting for 9% of national Carex plants. The Carex plants of north subtropical evergreen and deciduous broad- leaved forest were the largest species, accounting for 68.89% of the total, which was closely related with the habitat of Carex plants. The plants of Carex were mainly concentrated in the low-altitude section, and the similarity coefficient of ad- jacent altitudinal was higher. By analyzing the species diversity of 13 main Carex plant communities, the change of Shan- non-Wiener species diversity index, Patrick evenness index and Pielou richness index were positive correlation, Shannon- Wiener species diversity index and Simpson the dominance index were negative correlation. The Shannon-Wiener and Simp- son species diversity index showed a same change trend calculated based on the number, coverage and biomass.

关 键 词：江苏省 苔草属 野生植物资源 物种多样性 

分 类 号：S688.4[农业科学—观赏园艺] Q949.714.3[农业科学—园艺学]