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| 雅江格西沟自然保护区植被数量分类与排序 | |
| 引用本文： | 熊春妮,齐代华,魏虹,严超龙.雅江格西沟自然保护区植被数量分类与排序[J].西南师范大学学报(自然科学版),2011,36(3). |
| 作者姓名： | 熊春妮 齐代华 魏虹 严超龙 |
| 作者单位： | 1. 广州市环境监测中心站,广州,510030 2. 西南大学三峡库区生态环境教育部重点实验室,重庆,400715 3. 梧州学院计算机科学系,广西梧州,543002 |
| 摘 要： | 根据群落调查的结果,对雅江格西沟自然保护区森林群落、灌木群落和草本群落分别进行了双向种指示法(TWINSPAN)分类和除趋势对应分析(DCA)排序,结合实际将保护区植被分为21个类型.利用DCA排序探讨了群落分布与环境因子的关系,发现水份是影响保护区群落分布最主要的因素.不同海拔梯度的植被组成各异,表现出明显的垂直地带性.坡向对群落分布影响较大,同海拔阴坡、阳坡植被差异较大,表现出几种群落类型的镶嵌分布. |
| 关 键 词： | 分类 排序 TWINSPAN分类 DCA排序 垂直地带性 |
Quantitative Classification and Ordination Analysis of Vegetation in Gexigou Nature Reserve, Yajiang |
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| XIONG Chun-ni,QI Dai-hua,WEI Hong,YAN Chao-long.Quantitative Classification and Ordination Analysis of Vegetation in Gexigou Nature Reserve, Yajiang[J].Journal of Southwest China Normal University(Natural Science),2011,36(3). | |
| Authors: | XIONG Chun-ni QI Dai-hua WEI Hong YAN Chao-long |
| Institution: | XIONG Chun-ni1,QI Dai-hua2,WEI Hong2,YAN Chao-long3 1.Guangzhou Environmental Monitoring Center,Guangzhou 510030,China,2.Key Laboratory of Eco-environments in Three Gorge Reservoir Region,Southwest University,Chongqing 400715,3.Department of Computer Science,Wuzhou University,Wuzhou Guangxi 543002 |
| Abstract: | A community survey of Gexigou Nature Reserve in Yajiang was performed.Two-way indicator species analysis(TWINSPAN) and Detrended Correspondence Analysis(DCA)was respectively used to forest communities,shrub communities,and herbage communities.The vegetation of Nature Reserve was classified into twenty-one vegetation assemblages.The result of DCA reflected the relationship between environment gradient and distribution of communities.Water gradient was the leading factor for distribution of vegetation.Communi... |
| Keywords: | classification ordination analysis TWINSPAN DCA vertical zone |
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