山西太岳山典型森林物种多样性和功能多样性关系研究  

The species diversity and functional diversity of the typical forest of Taiyue Mountain Shanxi,China

作　　者：李晓强 田平[2] 程小琴[2] Li Xiaoqiang Tian Ping Cheng Xiaoqin(Shanxi Administration Station of Forestry Seedlings, Taiyuan 030012, China Key Laboratory of Ministry of Forest Cultivation and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China)

机构地区：[1]山西省林业种苗管理总站,山西太原030012 [2]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《山西农业大学学报（自然科学版）》2017年第9期628-634,共7页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家林业公益性行业科研专项(201404213)

摘　　要：[目的]物种多样性(SD)和功能多样性(FD)在解释生态系统功能上发挥着越来越重要的作用。为探究不同群落层次(乔木、灌木、草本)SD-FD关系以及影响SD-FD的主要因子。[方法]对太岳山华北落叶松白桦混交林以及辽东栎次生林SD和FD进行研究。[结果]不同林分、不同群落层次间SD-FD关系存在差异,华北落叶松白桦混交林内乔木层中SD与FD表现为显著正相关关系,辽东栎次生林乔木层的SD与FD无显著相关关系,而2种林分的灌木层与草本层SD与FD均呈现显著负相关;SD-FD的关系取决于物种均匀度(J_w)、物种丰富度(S)以及种间性状差异(d_(ij))对FD、SD的综合影响,当SD-FD正相关时,3个因子与FD/SD有显著正相关关系,并且d_(ij)的解释力最大,当SD-FD负相关时,J_w、S与FD/SD呈负相关关系,d_(ij)与FD/SD正相关,并且各因子解释力大小表现为J_w>S>d_(ij)。[结论]本文为森林生态系统多样性与稳定性研究以及森林经营管理提供了理论依据。[Objective]Species diversity（SD）and functional diversity（FD）play a more and more important role in explaining the ecosystem function.In order to identify which basic component of species diversity and functional diversity,such as species evenness（Jw）,species richness（S）and trait dissimilarity among species（d（ij））,contributes more to determine or alter the SD-FDrelationship.[Methods]We measured 17 functional traits of main species（the total important value80%）,and then calculated the SD,FD,Jw,S,d（ij）of different community levels of two typical forests in Shanxi province.[Results]The result indicated that there were differences between the two forests and different community levels in the SD-FDrelationship,which was significant negative correlation in shrub layer and herb layer of both the two forests,while it was significant positive correlation in the arbor layer of the mixed forest and no significant correlation in the Quercus wutaishanica forest.The SD-FD relationship was determined by the comprehensive influence of species evenness（Jw）,species richness（S）,trait dissimilarity among species（d（ij））.The slope of FDand SD was significantly positively correlated with the three factors,in which d（ij）had the largest explanatory,when the slope was greater than zero.Conversely,the slope had a significant negative correlation with Jw and S,and a positive correlation with d（ij）when it was less than zero,where the explanation of the three factors were shown as Jw〉S〉d（ij）.[Conclusion]This paper provides a theoretical basis for the study of the diversity and stability of forest ecosystems and forest management.

关 键 词：物种多样性 功能多样性 物种丰富度 物种均匀度 种间性状差异 

分 类 号：S753.3[农业科学—森林经理学]