南京信息工程大学学报Issue(3)：268-271,4.
石家庄冻土变化特征与气候因子的关系分析
Relational analysis between variation characteristics of frozen soil and influencing climatic factors in Shijiazhuang
摘要
Abstract
Relationship between variation characteristics of frozen soil and the influencing climatic factors were an⁃alyzed for the prediction of soil freezing and thrawing in Shijiazhuang.Based on the daily observation data of ground temperature,precipitation,evaporation capacity and frozen soil archived by 5 stations in Shijiazhuang from 1981 to 2010 and methods such as linear trend,multiple regression and complete correlation coefficient,variation relation between characteristics of frozen soil and the influencing climatic factors was analyzed.The results show that,the first freezing date of surface soil had a significant deterring trend while the first thrawing date of surface soil had a signif⁃icant advancing trend with the middle area having the most significant trend.An obvious positive correlation existed between the average lowest ground temperature during November to December,and the first freezing date of soil sur⁃face,while an obvious negative correlation between the average lowest ground temperature during February to March and the first thrawing date of soil surface.Precipitation and evaporation capacity in autumn had weak effect on deter⁃ring the first freezing date of soil surface,so is the precipitation and evaporation capacity in winter effect on advan⁃cing the first thrawing date of soil surface.关键词
冻土/变化特征/气候因子/关系分析Key words
frozen soil/variation characteristics/climatic factors/relation analysis分类
天文与地球科学引用本文复制引用
张翠华,张文煜,张秉祥..石家庄冻土变化特征与气候因子的关系分析[J].南京信息工程大学学报,2015,(3):268-271,4.基金项目
国家自然科学基金 （）
