森林工程2025，Vol.41Issue(5)：990-999,10.DOI:10.7525/j.issn.1006-8023.2025.05.012
基于多年冻土顶部温度模型的东北多年冻土时空分布变化
The Spatial and Temporal Distribution of Permafrost in Northeast China Based on Temperature at the Top of Permafrost Model
摘要
Abstract
Taking the Northeast China as the research object,this paper investigated the degradation degree and spatial distribution of permafrost over the years.Key meteorological elements were collected,and a multiple linear regression model was used to calibrate the ground surface temperature data.Based on the temperature at the top of permafrost(TTOP)model,and using ANUSPILN software for interpolation,the spatial and temporal distribution of permafrost in Northeast China was analyzed.The results showed that the areas of permafrost in the 1970 s,1980 s,1990 s,2000 s,2010 s were about 3.99×105,3.41×105,2.31×105,1.80×105,1.59×105 km2,respectively.During the period of 1970 s to 2010 s,the permafrost area in Northeast China decreased significantly by about 2.40×105 km2,with a de-crease of 60.08％.The proportion of permafrost area in Northeast China decreased from 27.66％to 11.04％,while the proportion of seasonally permafrost area increased from 72.34％to 88.96％.The difference between the model results and the actual borehole data was only 0.05℃,and the model results using the corrected ground temperature data were higher than the existing research results.关键词
东北/多年冻土分布/冻土退化/多年冻土顶部温度模型/多元线性回归/地表温度/数字高程/钻孔数据Key words
Northeast/permafrost distribution/frozen soil degradation/temperature at the top of permafrost model/multiple linear regression/surface temperature/digital elevation model/borehole data分类
农业科技引用本文复制引用
王薪迪,李秀娟,王文杰,王政博,丁琳,宋杨,柳艳杰..基于多年冻土顶部温度模型的东北多年冻土时空分布变化[J].森林工程,2025,41(5):990-999,10.基金项目
黑龙江省自然科学基金项目(LH2023D022) （LH2023D022）
冰冻圈科学与冻土工程重点实验室开放课题(CSFSE-KF-2429) （CSFSE-KF-2429）
山区桥梁及隧道工程国家重点实验室项目(SKLBT-ZD2302). （SKLBT-ZD2302）
