应用排序分析藓类植物分类群分布与气候因素的关系

以我国２１个山地藓类植物区系和气象资料为基础，应用典范对应分析（ＣＣＡ）和隐趋势典范对应分析（ＤＣＣＡ），比较了２１个山地中藓类植物６１个科，曲尾藓科（Ｄｉｃｒａｎａｃｅａｅ）２３个属、曲柄藓属（Ｃａｍｐｙｌｏｐｕｓ）１７种及曲尾藓属（Ｄｉｃｒａｎｕｍ）３５种分布与年均温度、〉１０℃积温、１月均温、７月均温、年均相对湿度、年均降雨量、年有雾天数、年有霜天数和年日照时数的关系，通过排序进行了直观的展

Ordination analysis on relationship between bryophyte distribution and climatic factors

Based on the data of climate and bryoflora in 21 mountainous regions of China, 61 moss families,23 genera of Dicranaceae,17 species of genus Campylopus and 35 species of genus Dicranum were analyzed by Canonical Correspond Analysis(CCA) and Detrended Canonical Correspond Analysis (DDCA) to reveal their distribution relationships with nine climatic factors,including annual average temperature,January average temperature,July average temperature,annual average rainfall,annual average fog days,annual average frost days and annual average light hours.The similarity of geographical elements among nine mountains in China and their relationships with climatic factors were also analyzed.The methods of applying DDCA and CCA to analyze the relationships between bryophyte and climatic factors were thus introduced.The studies indicate that CCA and DCCA are applicable in florology and phytogeography.