CAJ | 학술논문

以古尔班通古特沙漠腹地为试验区,利用2009年9～10月不同深度的地温数据,分析了秋季各层地温的变化特征以及其对气温的响应。结果表明：秋季各层地温呈波动缓慢下降过程,变化倾向率为负值,且由浅至深向下递减,0 cm的地温下降趋势显著,递减变化率为0.22℃/d;地温日变化呈正弦曲线变化过程,白天高,夜间低。随深度的增加,日较差逐步减小,日变化过程变缓,位相往后。午后达到日最高值,日出前下降至最低值;晴天时,地温变幅垂直方向上表现为上层大、下层小的＂锥形＂形态。浅层地温对降水的响应明显,地温随着降水发生而下降,且与晴天条件下的地温垂直结构差别较大;地温与气温呈线性正相关,随深度的增加,相关系数减小,地温变幅差异减小,且位相逐层滞后,时滞效应增强。
이고이반통고특사막복지위시험구,이용2009년9～10월불동심도적지온수거,분석료추계각층지온적변화특정이급기대기온적향응。결과표명：추계각층지온정파동완만하강과정,변화경향솔위부치,차유천지심향하체감,0 cm적지온하강추세현저,체감변화솔위0.22℃/d;지온일변화정정현곡선변화과정,백천고,야간저。수심도적증가,일교차축보감소,일변화과정변완,위상왕후。오후체도일최고치,일출전하강지최저치;청천시,지온변폭수직방향상표현위상층대、하층소적＂추형＂형태。천층지온대강수적향응명현,지온수착강수발생이하강,차여청천조건하적지온수직결구차별교대;지온여기온정선성정상관,수심도적증가,상관계수감소,지온변폭차이감소,차위상축층체후,시체효응증강。
Based on soil temperature data on different depth from September to October of 2009 in the thinterland of Guerbantonggute Deser,the change character of soil temperature in autumn and its response to air temperature were analyzed in this paper.The results show that the soil temperature of each layer presented slow descending and fluctuating trend,the 0 cm soil temperature declined significantly with the decresing rate of 0.22 ℃/d.The diurnal variation of soil temperature was a sine curve with high during daytime and low at night,and with the increase of depth,the daily soil temperature range decreased and the diurnal variation was no longer so extremely.The soil temperature was maximum in the afternoon and dropped to minimum value before sunrise.On a sunny day,the vertical variation of soil temperature presented larger in the upper layer and smaller in the lower layer.The response of soil temperature of upper layer to precipitation was obvious,and soil temperature dropped with the start of the rainfall,the vertical structure of soil temperature was greatly different from that on a sunny day.The soil temperature correlated significantly with air temperature（linear positive crrelation）,and a tendency of correlation coefficient decreasing from upper to lower layer.