The results indicate that in recent 50 years, the annual mean soil temperature experienced a cooling period, a relative cold period and a warming period.
结果表明，近50年，全国年平均地温的年代际变化特征大致可分为下降阶段，相对气候冷期及上升阶段。
The experiment results showed that the daily maximum and daily mean value of soil temperature were decreased, the daily minimum of soil temperature was increased in comparison with control.
实验结果表明，有机物覆盖使土壤的日最高温度和日平均温度降低，但却使土壤的日最低温度得以提高。
The experiment results showed that the daily maximum and daily mean value of soil temperature were decreased, the daily minimum of soil temperature was increased in comparison with control.
实验结果表明，有机物覆盖使土壤的日最高温度和日平均温度降低，但却使土壤的日最低温度得以提高。
应用推荐