CAJ | 학술논문

地温是表征气候变化的主要气象要素之一，研究地温的变化特征有助于揭示地温对农业生产和生态环境的影响。利用1960-2007年大兴安岭北部地区4个国家基准气象站0、5、10、15、20 cm各土层逐日地温，分析大兴安岭北部地区6-8月份各浅层地温的气候倾向率、变化趋势以及地温变化与气温的关系。结果表明：大兴安岭北部地区1960-2007年6-8月份各浅层地温呈显著增温的趋势，增幅每为0．47～05．8℃/10 a，其中20 cm层增幅最大；4个站点各浅层地温海拉尔站增幅最大，博克图站最小；各站点地温的增温幅度大于气温的增温幅度。整个观测期各浅层地温与气温及各层之间均呈显著正相关；各浅层地温随时间变化规律大致可分3个阶段：1960-1985年变化不大，1985-1996年缓慢上升，1996-2007年显著上升。地温上升时间明显晚于气温上升时间，显示地温变化的滞后性。
지온시표정기후변화적주요기상요소지일，연구지온적변화특정유조우게시지온대농업생산화생태배경적영향。이용1960-2007년대흥안령북부지구4개국가기준기상참0、5、10、15、20 cm각토층축일지온，분석대흥안령북부지구6-8월빈각천층지온적기후경향솔、변화추세이급지온변화여기온적관계。결과표명：대흥안령북부지구1960-2007년6-8월빈각천층지온정현저증온적추세，증폭매위0．47～05．8℃/10 a，기중20 cm층증폭최대；4개참점각천층지온해랍이참증폭최대，박극도참최소；각참점지온적증온폭도대우기온적증온폭도。정개관측기각천층지온여기온급각층지간균정현저정상관；각천층지온수시간변화규률대치가분3개계단：1960-1985년변화불대，1985-1996년완만상승，1996-2007년현저상승。지온상승시간명현만우기온상승시간，현시지온변화적체후성。
With the soil temperature data of four climate stations in the north Daxing’an Mountain from 1960 to 2007, we stud-ied the climatic trend, variation trend and the relationship between soil surfacetemperature and air temperature by linear trend and correlation analysis. The average shallow soil temperature increased with the rate of 0.47℃-0.58℃ in each ten years in summer in the north Daxing’ an Mountain from 1960 to 2007, and the biggest rising rate was 20 cm in depth. The shallow soil temperature of four sites had similar temporal change character.The maximum change was in Hailaer and the minimum change was in Boketu .The average ground temperature in summer is higher than the air temperature , and the increasing rate of ground temperature ishigher than that of air temperature.The shallow soil and air temperature show a significant positive correlation.The time series of soil temperature can be divided into three stages:little change from 1960 to 1984 , slowly rising trendfrom 1985 to 1996 , and obvious upward trend from 1997 to 2007 .The starting time for the ground temperature to show obvious increase trend is later than that for air temperature with lagging change .