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作 者:袁文涛[1] 刘滨辉[1] 刘燕玲 潘峰[1] 魏琳[3]
机构地区:[1]东北林业大学,哈尔滨150040 [2]江西省乐平市水务局 [3]黑龙江省水土保持科学研究所
出 处:《东北林业大学学报》2011年第2期67-71,共5页Journal of Northeast Forestry University
基 金:黑龙江省科技攻关项目(GA06B302-7);人事部留学基金“气候变暖对兴安落叶松种群动态影响的分析”
摘 要:利用黑龙江省15个国家基准气象站1960—2000年逐日地表平均温度和平均气温资料,采用ARC-VIEW的空间分析功能以及气候倾向率、相关分析等气候统计方法,分析黑龙江省41年来地温的时空分布特征、年及各季平均地温的年际变化以及地温变化与气温变化的关系。结果表明:随着纬度的升高,平均地温逐渐降低,冬季南北温差最大,夏季最小。41 a来,黑龙江省各季节及年均值都呈现上升趋势,年平均地温上升速率为0.039℃/a。季节平均地温冬季的上升速率最大,为0.060℃/a;秋季上升速率最小,为0.020℃/a。黑龙江省地温在1988年左右开始升高,1988年以前地温变化不大。地温的变化趋势和气温的变化趋势基本上一致,气温升温幅度整体上略高于地温,除冬季外,地温均值都比气温均值要高。The daily average soil surface temperature and air temperature from 15 weather stations in Heilongjiang Province for the period from 1960 to 2000 are analyzed.Spatial and temporal distribution of soil temperature,the variation trend of annual and seasonal mean soil temperature,and the relationship between soil surface temperature and air temperature were studied by the statistical methods including spatial analysis,linear trend,correlation analysis,etc.Results show that the mean soil surface temperature gradually reduces with latitude increasing,and the temperature difference between the north and the south is the highest in winter and the lowest in summer.Seasonal and annual mean soil surface temperatures present a warming trend in Heilongjiang Province.The annual mean soil surface temperature increases at a rate of 0.039 ℃/a,and the temperature ascending rates are 0.060 ℃/a in winter and 0.020 ℃/a in autumn respectively.The soil surface temperature began to increase around 1988,and the soil surface temperature changed little before 1988.Trends of soil surface temperature and air temperature are basically the same,and the increased range of air temperature is slightly higher than that of soil surface temperature.In addition to winter,mean soil surface temperature is higher than mean air temperature.
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