长江故道湿地植被的数量分类与排序  

Quantitative Classification and Ordination of Wetland Vegetations in Oxbows,Yangtze River

作　　者：杨东[1,2] 黎明[1] 程玉[1] 温华军 李鹏飞 徐飞 李伟[5] 

机构地区：[1]中国科学院水生植物与流域生态重点实验室,武汉430074 [2]中国科学院研究生院,北京100049 [3]湖北石首麋鹿国家级自然保护区,湖北石首434401 [4]石首市天鹅洲经济开发区水利管理站,湖北石首434400 [5]中国科学院武汉植物园湿地演化与生态恢复湖北省重点实验室,武汉430074

出　　处：《植物科学学报》2011年第4期467-473,共7页Plant Science Journal

基　　金：中国科学院知识创新工程重要方向项目(KSCX2-YW-Z-1023-5);湖北省自然科学基金计划青年杰出人才项目(2007ABB041);世界自然基金(WWF)(CN087901)

摘　　要：采用双向指示种分析法(TWINSPAN)和除趋势对应分析法(DCA)对长江故道湿地植被做分类和排序研究。TWINSPAN分类将湿地植被234个样方分为28个群丛,论述了各群丛的群落学特征。DCA排序结果反映了植物群落类型与环境梯度之间的关系,表明影响群丛分布格局的主导生态因子为生境的水分条件。TWINSPAN数量分类在DCA排序图中有较为明确的分布范围和界限,两者的结合使用,能很好地反映群落与环境因子间的生态关系。The classification and ordination of wetland vegetation in the Tian＇ezhou Oxbows of the Yangtze River were studied using two-way indicator species analysis（TWINSPAN） and detrended correspondence analysis（DCA）.A total of 234 samples collected from the wetland vegetation in the Tian＇ezhou Oxbows were classified into 28 associations by TWINSPAN and the community characteristics of every association were described.The DCA ordination reflected the relationship between plant community type and the environmental gradient.The results showed that soil type and humidity were the main factors influencing the structure and distribution of wetland community.The TWINSPAN classification showed an explicit distribution scope in the DCA ordination plot,which better reflected the relationships between communities and environmental factors when combined with TWINSPAN quantitative classification.

关 键 词：天鹅洲故道 黑瓦屋故道 湿地植被 TWINSPAN数量分类 DCA排序 

分 类 号：Q948.15[生物学—植物学]