CAJ | 학술논문

设计了气温数字控制系统和非饱和带温度场自动监测系统,编制了相应的信息监测与处理软件,研究了非饱和带冻结期土壤温度变化特征.模拟实验结果表明,非饱和带土壤冻结过程中同样的气温降幅条件下,空气温度的变幅(3℃)远大于土壤表面温度的变幅(1℃),砂土要比亚黏土地表温度降幅大;冻结期土壤温度变化具有一定的时间滞后效应,其时问滞后效应随着土壤深度的增加而增大;不同类型土壤,其温度差别主要在土壤表层.
설계료기온수자공제계통화비포화대온도장자동감측계통,편제료상응적신식감측여처리연건,연구료비포화대동결기토양온도변화특정.모의실험결과표명,비포화대토양동결과정중동양적기온강폭조건하,공기온도적변폭(3℃)원대우토양표면온도적변폭(1℃),사토요비아점토지표온도강폭대;동결기토양온도변화구유일정적시간체후효응,기시문체후효응수착토양심도적증가이증대;불동류형토양,기온도차별주요재토양표층.
This paper designed the digital temperature control system and unsaturated zone automatic temperature monitoring system, wrote the information monitoring and processing software, and studied the unsaturated zone soil temperature variation characteristics during the freezing period. In soil freezing process under similar temperature drop condition, the change in air temperature was far bigger than that in soil surface temperature, and the change in sandy soil temperature was bigger than that in clay loam surface. The soil temperature had a certain time hysterisis,which increased with increasing soil depth. For different soil types, the temperature difference was mainly in the soil surface.