摘要
在分析植物群落和生态因子数据的基础上，利用ＰＣＡ排序、相关和回归分析等多元分析技术，描述了大兴沙地草本植被的空间分布与主要生态因子的相关性，数量地表达了植被分布与环境的关系。结果表明：土壤中小于０．００１ｍｍ颗粒含量和土壤全Ｐ含量是影响植被分布的主导生态因子。
Based on the analysis of plant communities and ecological factor data,by the correlationanalysis and regression analysis,the relations between the spatial distribution of herbaceous vegetationin sandy land in Daxing and ecological factors were discussed and expressed quantitatively in thepaper.The result shows that the <0.001 mm grain content and the total phosphorus content in soil arekey factors which strongly affect the vegctation distribution.
出处
《中国沙漠》
CSCD
北大核心
1995年第3期237-240,共4页
Journal of Desert Research
基金
中国科学院"八五"重点研究项目
关键词
大兴沙地
生态因子
植被
数量
草本植物
Daxing sandy land Vegetation analysis Ecological factors Multivariate analysis
