CAJ | 학술논문

利用1960-2010年黑龙江省83个气象站的冻土和0 cm地温资料，采用线性回归和多项式回归方法分析了黑龙江省冻土活动层的时空变化特征，揭示了黑龙江省5个典型气候区域最大冻土深度的变化趋势与特征，讨论了黑龙江省冻土活动层的影响因子。结果表明：黑龙江省冻土活动层冻结开始于9月，冬季3月冻土深度达到最大值，8月冻土厚度接近于0 cm。全省由北向南，最大冻土深度逐渐变小，冻结开始时间逐渐推迟，融化结束时间逐渐提前。黑龙江省最大冻土深度均呈显著减小的趋势，存在明显的退化趋势。从年代际变化来看，20世纪90年代前黑龙江省最大冻土深度变化较小，最大冻土深度较深，90年代后最大冻土深度呈显著减小的趋势。高纬度地区地温低，在同等条件下冻土深度较低纬度地区深。
이용1960-2010년흑룡강성83개기상참적동토화0 cm지온자료，채용선성회귀화다항식회귀방법분석료흑룡강성동토활동층적시공변화특정，게시료흑룡강성5개전형기후구역최대동토심도적변화추세여특정，토론료흑룡강성동토활동층적영향인자。결과표명：흑룡강성동토활동층동결개시우9월，동계3월동토심도체도최대치，8월동토후도접근우0 cm。전성유북향남，최대동토심도축점변소，동결개시시간축점추지，융화결속시간축점제전。흑룡강성최대동토심도균정현저감소적추세，존재명현적퇴화추세。종년대제변화래간，20세기90년대전흑룡강성최대동토심도변화교소，최대동토심도교심，90년대후최대동토심도정현저감소적추세。고위도지구지온저，재동등조건하동토심도교저위도지구심。
Based on frozen soil active layer data and 0 cm ground temperature data at 83 weather stations in Hei-longjiang province from 1960 to 2010,temporal and spatial characteristics of frozen soil active layer were analyzed using liner and polynomial regression analysis methods.Change trend of the maximum frozen soil depth and its characteristics were discussed for five typical climate regions of Heilongjiang province,and the influencing factors of frozen soil active layer were analyzed.The results indicate that the early date of soil becoming frozen begins in September.The maximum depth of frozen soil appears in March,while thickness of frozen soil is nearly 0 cm in August.From north to south in Heilongjiang province,the maximum frozen soil depth becomes shallow gradually;the early date of soil frozen is delayed;the ending date of frozen soil occurs early.The maximum frozen soil depth of active layer is in a decreasing trend in Heilongjiang province,and the degradation trend is obvious.For the inter-decadal change,the maximum frozen soil depth has not a significant change before 1990s,while thickness of frozen soil is deeper;it is in a decreasing trend after 1990s.The ground temperature is lower in high latitude regions,thus frozen soil depth is deeper in high latitude regions than in low latitude regions under the same conditions.