DCA、CCA和DCCA三种排序方法在中国草地植被群落中的应用现状

Application Present Situation of DCA、CCA、and DCCA Ordination of Grassland Vegetation Communities in China

排序是用来分析植被与环境之间生态关系的重要手段。该文主要是对除趋势对应分析(DCA)、典范对应分析(CCA)和除趋势典范对应分析(DCCA)这三种排序方法进行总结,讨论它们在中国草地植被群落研究中的应用现状,并得出除趋势对应分析与聚类分析结合使用效果比较好,主要是用来揭示群落之间的关系,并且在实际的应用中也比较多,而典范对应分析和除趋势典范对应分析在揭示种与环境关系方面具有明显的优势,但是由于某些条件的限制,在实际研究中应用的比较少。可见这几种排序方法在实际应用中具有一定的优势,所以应该加强这方面的应用,更加深入的研究草地植被群落,以期对草地生态学及草地植被群落生态关系的研究工作发挥重要的借鉴作用。

Ordination is one of importance measures to investigate the grassland vegetation communities. It can be used to analyze the ecological interaction between vegetation and the environment round the plants. This paper is mostly discussing the development of the Detrended Correspondence Analysis （DCA）, Canoni- cal Correspondence Analysis （CCA） and Detrended Canonical Correspondence Analysis （DCCA）, and summa- rizing the using-actuality of three ordinations. And we know that DCA is a good manner to analysis the community＇s interaction, and it always used with classis analysis. But CCA and DCCA is a good manner to analysis the ecology interaction the species and environment, but because of some reason, it is few used in the practical research. Those manners have their application prospect, and offer some references to the study of grassland ecology and ecological interaction of grassland vegetation eommunities.