摘要
以冰川形态因子变量(面积、长度和厚度),气候条件因子变量(年气温、降水),以及年物质平衡量等作为影响因素,采用通径分析方法研究了祁连山七一冰川1958-2007年间年际运动速度的影响因子强度.结果表明:冰川形态对运动速度的影响强度最大,物质平衡的影响次之,而气候条件的影响最弱.在这些影响因素中冰川面积和厚度对运动速度的影响较为显著,其直接和间接的通径系数分别是6.56、4.71和19.29、13.57.为认识冰川运动速度的内外影响因素提供了科学参考依据.
Glacier shape factors（area,length and thickness）,climate factors（air temperature and precipitation）,mass balance and other influencing factors of the Qiyi Glacier and their influencing intensity during 1958-2007 were analyzed with the application of the path analysis method.Results indicate that glacier flow velocity is mainly influenced by the glacier shape,and then the mass balance and the climate condition.Among all the influencing factors,glacier area and thickness are the most significant ones,the direct and indirect path coefficients were 6.56,4.71,19.29 and 13.57,respectively.The research provides references for further understanding the glacier flow velocity and its influencing factors.
出处
《冰川冻土》
CSCD
北大核心
2011年第6期1222-1228,共7页
Journal of Glaciology and Geocryology
基金
全球变化研究国家重大科学研究计划项目(2010CB951404)
国家自然科学基金项目(41071043)资助
关键词
运动速度
影响因子
通径分析
祁连山
七一冰川
glacier flow velocity
path analysis
influence factors
Qilian Mountains
Qiyi Glacier
