东山岛海岸带潺槁树林植物组成特征及主要木本种群生态位  

Vegetative composition and niche breadth of plants in a Litsea glutinosa forest on Dongshan Island

作　　者：高伟[1] 叶功富[2] 游水生[1] 韩孟孟[1] 杜林梅[1] 辛秀[1] 

机构地区：[1]福建农林大学林学院,福建福州350001 [2]福建省林业科学研究院,福建福州350012

出　　处：《浙江农林大学学报》2011年第3期400-407,共8页Journal of Zhejiang A&F University

基　　金："十一五"国家科技支撑计划专题(2009BADB2B0302);福建省重点科技计划项目(2008N0002)

摘　　要：对福建东山岛海岸带潺槁树Litsea glutinosa林植物组成特征及主要木本种群生态位进行了初步分析。结果表明:所调查群落共有植物34种,其中木本植物有23种,占67.6%,分属16科22属,草本植物有11种,分属6科10属,植物区系地理分布以热带亚热带成分为主。群落层次结构清晰,潺槁树和雀梅藤Sageretia thea分别是乔木植物和林下木本植物中生态位宽度最大的种,沿阶草Ophiopogon bodinieri和荩草Arthraxon hispidus是草本层优势种,对生境适应能力较强,对资源利用更有效。从种群间的生态位重叠来看,各种群对资源的共享趋势较为明显,群落稳定性较强,其结构特征可为选择合适树种,进行稳定型森林防御体系的生态构建提供参考材料。In order to reveal the resources utilization and relationship of different plant species in coastal wind-blown sand aera,based on the using of Shannon-Wiener and Levins formulas,The vegetative composition and population niches of important plants in a Litsea glutinosa forest on Dongshan Island were studied.Results indicated 34 plant species in the Litsea glutinosa forest including 23 woody species,accounting for 67.6% of the total,belonging to 16 families and 22 genera with 11 herbs belonging to 6 families and 10 genera.Tropical and subtropical distributing were dominant in the vegetation.The layers of trees,shrubs,liane,and herbages could be distinguished clearly,Community structure showed the plant with the greatest niche breadth in the tree layer was L.glutinosa,and in the bush layer it was Sageretia thea;whereas in the herb layer dominant species were Ophiopogon bodinieri and Arthraxon hispidus.The niche overlap among populations revealed a resource sharing tendency from a stable community and offered some reference data for ecological development of forest defense system.[Ch,2 tab.23 ref.]

关 键 词：森林生态学 潺槁树 种群 生态位宽度 生态位重叠 

分 类 号：S718.45[农业科学—林学] Q948.1[生物学—植物学]