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机构地区:[1]黑龙江八一农垦大学电气与信息学院,黑龙江大庆163319
出 处:《安徽农业科学》2017年第35期102-104,127,共4页Journal of Anhui Agricultural Sciences
基 金:黑龙江省自然科学基金项目(F201329);国家科技支撑项目(2014BAD06B01);校博士启动基金项目(XDB2013-18);大庆市科技计划项目(ZD-2016-057)
摘 要:通过分层安装温度传感器采集黑龙江省大庆市某地区的浅层土壤温度值,运用ANSYS有限元分析软件对地下1 m内土层进行相应的模拟分析,探究地下浅层土壤温度场的变化特征.结果表明:地下土壤深度为70100 cm范围内的温度变化趋向比较相近,整年白天的地表最高温度在7月,最低在12月,3—5月、7—9月的地表温度变化趋向均高于地下浅层土壤温度,土温整体是呈地表向地下逐渐降落的趋向;整年黑天的最高地表温度在7月,最低在12月,4—5月、7月的地表温度变化趋向均大于地下浅层土壤温度,土温随深度的增加呈地表向地下逐渐增高-降低-增高的趋向.In order to explore the change of soil temperature field in shallow layer of soil in this paper, temperature sensor was stratified instal-ling to collect the shallow soil temperature in an area of Daqing, Heilongjiang. Simulation analysis of the surface temperature was carried out by mainly using the finite element analysis software ANSYS. The results showed that Soil temperature variation in the range of underground 70 - 100 cm was close. The maximum surface temperature of the annual day was in July, the lowest was in December, the surface temperature change trend in March - May and July - September were greater than the shallow underground soil temperature, the soil temperature of the ground surface to underground showed a downward trend ; The highest surface temperature of the annual night was in July, the lowest was in December, the surface temperature transformation trend in April - May and July was greater than the shallow underground soil temperature, with the increase of depth, temperature increased firstly, then decreased and increased gradually from surface to underground of soil.
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