Soil temperature variation的意思|示意

The soil respiration rates showed a seasonal variation for upland measured in Zigui, Three Gorges region. The soil respiration rates fluctuated with the soil and the atmospheric temperature.

土壤呼吸速率有明显的季节变化，其变化趋势基本与大气温度和土壤温度的变化趋势相同。

The annual variation of soil temperature under mulching changed more smoothly than that of the control (CK), so the differences among the soil layers were small.

覆盖处理后土壤温度年变化较对照平稳，其各土层的温度日较差较小。

For different soil depths, the amplitude of temperature daily variation can be approximated as an exponential function of the depth.

一日内地温变幅与深度关系可拟合成指数函数。

Verification with experiments shows that this model can be used to express the variation rules of soil water content, soil temperature, evapotran…

试验验证结果表明，此模型能较好地反映各种耕作处理下土壤水分的变化情况。

It was also shown that there was an inverse correlation between the speed of temperature variation and the initial water content for freezing soil, but no monotonic correlation for the thawing soil.

试验结果还表明：正冻土温度变化速率与其初始含水率间存在反相关性，而正融土温度变化速率与其初始含水率间无单调相关性。

With the increase of soil depth, daily variation amplitude of soil temperature decreases.

随着土壤深度的增加，地温日变幅逐渐减小。