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当前位置: 首页 > 文章 > 额济纳河岸胡杨林天然植被的数量分类与排序 西北林学院学报 2007,22 (4) 45-48
Position: Home > Articles > The Quantitative Classification and Ordination of Natural Vegetation Populus euphratica Oliv.Forests Growing on the Banks of Ejina River Journal of Northwest Forestry University 2007,22 (4) 45-48

额济纳河岸胡杨林天然植被的数量分类与排序

作  者：
王利兵;余伟莅;杨文斌;胡小龙;李钢铁;李佳陶
单  位：
中国林业科学研究院
关键词：
胡杨;TWINSPAN分类;DCCA排序;地下水位
摘  要：
应用双向指示种分析法(TWINSPAN)和除趋势典范对应分析(DCCA)对额济纳河岸胡杨(Populus euphratica Oliv.)林天然植被进行了分类和排序。TWINSPAN分类结果将8个样方划分为4个群丛,并分别对每个生境进行了论述。DCCA二维排序图较好地验证了TWINS- PAN的分类结果,其纵、横坐标均反映了群丛所在环境的地下水位、空气相对湿度、土壤含水量、相对高程等生态因子的梯度变化。种的DCCA排序和各环境因子的相关性分析结果表明,地下水位是所有因子中对植物群落分布起决定性作用的环境因子。
译  名：
The Quantitative Classification and Ordination of Natural Vegetation Populus euphratica Oliv.Forests Growing on the Banks of Ejina River
作  者：
WANG Li-bing~(1,4) YU,Wei-li~(2,3) YANG Wen-bin~(1,2) HU Xiao-long~(2,3) LI Gang-tie~(3,4) LI Jia-tao~4 (1.Research Institute of Forestry,Chinese Academy Forestry,Beijing 100091; 2.Inner Mongolia Academy of Forestry Science,Huhhot 010019; 3.Beijing Forestry University,Beijng 100083; 4.Inner Mongolia Agricultural University,Huhhot 010019,China)
关键词：
Populus euphratica;;TWINSPAN classification;;DCCA ordination;;ground water level
摘  要：
The classification and ordination of Populus euphratica Oliv.community on the banks of Ejina River in Inner Mongolia were studied by using the two-way indicator species analysis(TWINSPAN)and distended canonical correspondence analysis(DCA).Eight quadrats selected from the community were classified into four associations by TWINSPAN,and ecological environment of each association was discribed.The results of DCCA ordination were tested and verified by the results of TWINSPAN.The ordinate and abscissa of DCCA ordination indicates the gradi- ent variations of ground water level,air relative humidity,and soil humidity to elevation of each association.Fur- thermore,the results of DCCA ordination and environment factor correlation analysis showed that the ground water was the crucial environment factor among the all to the distribution of plant community.

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