退化羊草草地植物群落的数量分析  

Quantitative analysis of plant communities in degraded Leymus chinensis grassland

作　　者：邸桂俐[1] 陈积山[1] 朱瑞芬[1] 高超[1] 张月学[1] 

机构地区：[1]黑龙江省农业科学院草业研究所,哈尔滨150086

出　　处：《黑龙江畜牧兽医》2016年第5期141-143,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金：现代农业产业技术体系建设专项(CARS-35);农业部公益行业专项(201303060);黑龙江省农业科技创新工程院级科研项目(QN014)

摘　　要：为了研究松嫩羊草草地植物群落特征和物种分布格局,试验通过利用群落物种的重要值,采用双向指示种分析(TWINSPAN)和无趋势对应分析(DCA)的方法对植物群落进行了数量分类和排序,测定了12个优势种的无趋势对应分析排序。结果表明:优势植物种的分布格局在一定程度上影响了植物群落的分布格局。排序结果吻合于分类结果的事实,验证了环境因子梯度变化导致现存植物群落类型和物种分布格局。To study plant community characteristics and species distribution patterns in Leymus chinensis grassland in Songnen plain, the quantitative classification and sorting of plant communities was conducted using two - way indicator species analysis （TWINSPAN） and detrended correspondence analysis （DCA） methods through utilizing the important value of the species. The sorting of 12 dominant plant species was determined and ordered by the DCA. The results showed that the distribution pattern of dominant plant species affected that of plant communities to some extent. The fact that the sorting results coincided with the classification results, verified that the gradient change in environmental factors led to existing plant community types and species distribution patterns.

关 键 词：羊草草地 植物群落 双向指示种分析 无趋势对应分析(DCA) 排序 植被数量分析 

分 类 号：S812.5[农业科学—草业科学]