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测定了林带不同距离土壤、作物层、地面温度的垂直变化及其动态。结果表明,12时为温度变化的转折点。在5H处,5cm土层温度恒高于对照地;地温的变化也以5H处为好,说明5H处对农田系统温度的调节作用最好。林带两侧温度变化为西南侧高于东北侧。10时以后,作物层到地面的温度递增,表明林带对系统温度的调节作用明显。
The vertical variation of soil temperature, crop layer and ground temperature and their dynamics at different distances were determined. The results show that 12 o’clock is the turning point of temperature change. At 5H, the temperature of 5cm soil layer was higher than that of CK, and the change of ground temperature was also 5H, which showed that 5H had the best regulation on farmland system temperature. The temperature changes on both sides of the forest belt are higher on the southwest side than on the northeast side. After 10 o’clock, the temperature of the crop layer to the ground increased, indicating that the regulation of the temperature of the forest belt is obvious.