新疆阿勒泰地区典型植物群落数量分类与排序分析  

Quantitative classification and ordination analysis of typical plant communities in Altay Prefecture of Xinjiang

作　　者：苏金娟 刘永萍[2] 刘丽燕[2] 吴天忠[2] 王梅[1] SU Jin-juan;LIU Yong-ping;LIU Li-yan;WU Tian-zhong;WANG Mei(Agriculture College of Shihezi University,Shihezi 832003,China;Xinjiang Academy of Forestry Sciences,Urumqi 830017,China)

机构地区：[1]石河子大学农学院,新疆石河子832003 [2]新疆林业科学院,新疆乌鲁木齐830017

出　　处：《草业学报》2023年第9期50-67,共18页Acta Prataculturae Sinica

基　　金：新疆维吾尔自治区科技厅项目(ALTKJZC2019002)资助。

摘　　要：探究新疆阿勒泰地区植物群落类型及分布情况,确定影响当地群落分布的主要环境因子,可为阿勒泰地区植物群落保护和生态修复提供理论依据。基于阿勒泰地区的野外调查数据,以物种重要值为指标,采用双向指示种分析(TWINSPAN)和典范对应分析(CCA)方法进行数量分类与排序,研究阿勒泰地区植物群落组成和影响群落分类的主导因子。结果表明:1)163个样方共记录维管束植物322种,隶属于51科207属,其中以双子叶植物占主导地位,菊科、禾本科、藜科、蔷薇科是研究区的优势科;2)TWINSPAN分类将阿勒泰地区植物分为了17个群丛,以草本植物为优势种命名的群落占多数,植被类型以荒漠草原和草甸草原类型为主,还有落叶阔叶林和常绿针叶林;3)CCA排序显示,影响当地植物群落分布的主要环境因子是海拔,其次是气候和土壤因子。To provide a theoretical basis for plant community protection and ecological restoration in Altay Prefecture of Xinjiang,the types and distribution of plant communities in Altay Prefecture of Xinjiang were studied,and the main environmental factors affecting the distribution of local communities were determined.Based on the field survey data in Altay Prefecture,taking the species importance value as the index,two-way indicator species analysis(TWINSPAN)and canonical correspondence analysis(CCA)were used to study the composition of plant communities and the dominant factors affecting community classification in Altay Prefecture.The results showed that:1)A total of 322 species of vascular plants were recorded in 163 quadrats,belonging to 51 families and 207 genera,among which dicotyledonous plants were dominant.Asteraceae,Poaceae,Chenopodiaceae and Rosaceae were the dominant families in the study area.2)Based on the TWINSPAN classification method,the plants in Altay Prefecture were divided into 17 associations,and the herbaceous plant communities were the majority.The vegetation types were mainly desert steppe and meadow steppe,as well as deciduous broad-leaved forest and evergreen coniferous forest.3)CCA ordination showed that altitude was the main environmental factor affecting the distribution of local plant communities,followed by climate and soil factors.

关 键 词：阿勒泰地区 群落分类 排序 双向指示种分析 典范对应分析 

分 类 号：Q948[生物学—植物学]