白石砬子自然保护区森林植被和主要树种分布的环境解释  

Environmental interpretation on distribution of forest vegetation and main tree species in Baishilazi Nature Reserve

作　　者：袁永孝 郭水良[2] 曹同[3] 郭元涛 李军 姜玉乙 杨晶 仇发 

机构地区：[1]白石砬子国家级自然保护区,辽宁宽甸118201 [2]浙江师范大学生命与环境科学学院,浙江金华321004 [3]上海师范大学生命与环境科学学院,上海200234

出　　处：《辽宁林业科技》2002年第1期1-6,23,共7页Liaoning Forestry Science and Technology

摘　　要：应用典范对应分析 (CCA)对辽宁东部白石砬子国家级自然保护区 5 6个样地中的森林植被和 4 4种主要树种与 8个环境因子间的关系进行了研究。结果表明 ,海拔高度、样地坡度、土壤有机质、林冠郁闭度和土壤酸度是影响白石砬子森林树种和植被分布的主要因素。结合双向指示种分析 (TWINSPAN) ,在CCA样地—环境因子双序图上区分出 8个样地组 ,分析了 8个样地组的植被成员组成及其分布与环境因子间的关系。The paper analyzed relationship between distributions of vegetation and major tree species and environment factors.In Baishilazi Nature Reserve,eight environment factors and vegetation and 44 tree species were surveyed in 56 plots.Canonical Correspondence Analysis(CCA) revealed that altitude,slant grade,proportion of soil organic matter,canopy density and soil acidity were main factors influencing distribution of vegetation and major tree species.Based on Two-Indicative-Species-Analysis(TWINSPAN),eight site groups were identified on site-environment variable two dimensions graph,the main components of communities and their relationship with environmental factors were analyzed.

关 键 词：白石砬子国家级自然保护区 典范对应分析 树种 环境解释 森林植被 分布 

分 类 号：S718.5[农业科学—林学]