Daily courses of soil temperature at different measuring depths at the adjacent natural conditions (data of Jun-21 and 22).

<p>T0, T5, T10, T20, T30 and T40 represent temperature measured at 0, 5, 10, 20, 30 and 40-delay of daily highest temperature from T0, and values are 60, 240, 420, 740 and 960 sec minutes for a, b, c, d and e, respectively.