近52年本溪县浅层地温的变化特征分析

Analysis on the Variation Characteristics of Shallow Layer Ground Temperature in Benxi County in Recent 52 years

利用1958～2009年本溪县5～20cm地温资料,应用数理统计方法,分析浅层地温变化特征。结果表明,本溪县浅层地温呈波动性升高趋势变化,春季、秋季浅层地温升温明显,夏季变化不大;利用Mann-Kendall检测方法对浅层地温进行突变检测,秋收期和生长季存在明显的突变现象。

Based on the soil temperature （5 -20 cm） data in Benxi County from 1955 to 2009, the variation characteristics of shallow layer ground temperature were analyzed by using mathematical statistics method. The results showed that shallow layer ground temperature had a ris- ing tendency, and there was obvious increase in spring and autumn, with a little change in summer. Meanwhile, the abrupt change detecting of shallow layer ground temperature was carried out by means of Mann-Kendall, the results showed that there was catastrophic phenomenon in harvest season and growing season.