摘要
采用临沂气象站1960-2007年0-20cm各层逐月平均地温,研究了近48a临沂浅层平均地温的变化特征。结果表明:各季节浅层平均地温均呈现升高趋势,升温率为0.053~0.381℃/10a,春季最大,夏季最小。各层年平均地温以0.215~0.297℃/10a的升温率显著上升,0cm的升温率最大。各层年平均地温在20世纪60年代-80年代中期为偏冷阶段,80年代后期-90年代为偏暖阶段。气温升高和降水减少是影响地温上升的主要原因。研究结果对于利用气候资源,调整种植区划和农业生产布局具有参考价值。
By using monthly mean temperature in depth of 0-20 cm from 1960 to 2007 at Linyi meteorological station,the variation of average shallow geothermal was analyzed in Linyi in recent 48 years.The results showed that average shallow geothermal in each season increased with the rate of 0.053～0.381℃/10years.The max change was in spring and min change was in summer.Annual average shallow geothermal in each lever significant increased by 0.215～0.297℃/10years,the rate of temperature in depth of 0cm was biggest.Annual average shallow geothermal in the middle 1960s-1980s was cold periods,and that in the late 1980s-1990s was warm periods.The main reasons of impact on geothermal increasing were the increasing temperature and the decreasing precipitation.The result could provide a reference to utilizing climatic resources and adjusting planting division and distribution of agricultural production.
出处
《中国农业气象》
CSCD
2009年第S1期38-41,共4页
Chinese Journal of Agrometeorology
基金
山东省临沂市科技发展计划项目(080203063)
山东省气象局重点课题(2008sdqxz20)
关键词
浅层地温
气候倾向率
异常年份
Shallow geothermal
Climatic tendency
Abnormal year
