摘要
针对准噶尔盆地西北边缘的湖积平原荒漠植物群落，选取了具有代表性的盐穗木群落、梭梭群落和白梭梭群落共9个典型群落样地进行调查。通过测定每一样地不同深度的16项土壤理化因子指标，运用聚类分析对土壤指标进行聚类，结果得到与典型群落样地吻合性较好的土层深度是0～35em的土层。进一步运用除趋势对应分析（DCA）方法，定量的对9个典型群落样地和0—35cm土层的16项土壤理化因子指标进行排序分析，结果表明这一层的土壤因子含量能较好的反映植物群落的分布情况，盐穗木群落、白梭梭群落和梭梭群落分别与土壤总盐、土壤碱性和土壤速N呈正相关。
As for desert plant community in the outer space of Karamay Agricultural Comprehensive Developmental Region, this re- search selected nine typical community sites, including Halostaehys easpica community, Haloxylon persicum community and Haloxylon ammodendron community and measured 16 soil indexes within different depth of each site. Through cluster analysis of soil factors, the results indicated that soil within the range of 0 -35cm reflected reasonably vegetation distribution community site. Further, the DCA ordination analysis on nine typical community sites and 16 soil factors showed that soil factors within the range of 0 -35cm affected in- tensively the distribution of local community. What is more, Halostachys caspica community, Haloxylon persieum eommunity and Haloxylon ammodendron community increased as soil salinity, soil nutrient and soil acid - alkalinity respectively, fitting positive corre- lation.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2013年第5期42-46,共5页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
国家科技支撑计划课题(2006BAC01A03-2)
新疆自治区科技支疆计划项目(201091220)
新疆农业大学前期课题(20110406)
关键词
荒漠植被
植物群落
土壤因子
环境解释
聚类
DCA排序
Desert vegetation
plant community, soil factor
environmental interpretation
cluster analysis
detrended corre-spondence analysis ordination
