黑龙江多年冻土变化趋势以及与气温的相关关系研究

Research on Change Trend of Frozen Soil and Correlation with Temperature in Heilongjiang Province over the Years

利用ARCGIS的空间统计分析和栅格计算功能,对黑龙江省30个气温站1960~2015年间的冻土平均厚度和气温数据进行相关关系的分析.研究发现：（1）黑龙江多年冻土出现退化趋势,主要表现为冻土厚度和分布面积缩小以及部分多年冻土消失.（2）1960~2015年间气温升高是多年冻土退化的主要自然原因.（3）55年来黑龙江冻土退化与平均气温呈显著负相关的相关关系.

Used the climatic trend and spatial statistics function of Arcgis, the data from 83 meteorological station about the average thickness and temperature in I-Ieilongjiang since 1960 to 2015 is analyzed. The study shows that （ 1 ） The expression of frozen soil degeneration is the upper limit come down, temperature raised, thickness thinned, melting region expanded, island of frozen soil disappeared, and frozen soil in south moved to north. （2）The main natural reason of frozen soil degeneration since 1960 to 2015 is the temperature raised especially in winter, and the change of precipitation and ice in thickness and time. （3）The relationship between Frozen soil degeneration in Heilongjiang in the past 55 years and the average temperature is A significant negative correlation.