摘要
在群落样方调查的基础上,采用TWINSPAN等级分类和DCA排序相结合的方法,对晋西北丘陵风沙区人工植被群落进行了植被数量分类与排序分析.TWINSPAN分类将晋西北丘陵风沙区人工植被87个样方109个种划分为11个群丛,并论述了各群丛的特征.分类结果很好地反映了植物群丛类型与环境梯度之间的关系,并在DCA二维排序图上得到了较好的验证,DCA排序轴反映了海拔、坡向和土壤水分的梯度变化,结果表明海拔、坡向和土壤水分是决定群落分布的主导因子.
Based on the field investigation,two-way indicator species analysis（TWINSPAN） and distended correspondence analysis（DCA） were applied to analysis on the artificial vegetation in sandy hill areas of northwest Shanxi.87 samples with 109 plant species were classified by TWINSPAN into 11 associations that were located at different altitudes.The characteristics of each association were described.The results of DCA ordination were consistent with TWINSPAN classification,and indicated that the altitude,slope and soil moisture were the dominant ecological factors responsible for the flora distribution in the research areas.
出处
《山西师范大学学报（自然科学版）》
2011年第1期103-109,共7页
Journal of Shanxi Normal University(Natural Science Edition)
基金
山西省回国留学人员科研资助项目
关键词
晋西北
丘陵风沙区
人工植被
TWINSPAN分类
DCA排序
环境因子
the northwest of Shanxi province
sandy hill areas
artificial vegetation
TWINSPAN classification
DCA ordination
environmental factors
