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利用 1990～ 1997年定位观测数据 ,对第二代杉木林林内和林外地表温度、土壤温度进行了研究 .结果表明 :林内地表温度、土壤温度各月均值都低于林外相应值 ,杉木林有减小地表温日较差的作用 ,日较差年均值与林外的差值随幼林增长呈逐年增大趋势 ;在 0～ 5 cm土层内 ,林内土温随土壤深度的变化率大于林外 ;第二代杉木幼林在群落建成过程中对地表温度和土壤温度的调节能力低于第一代成林 .
Based on the observed data from 1990 to 1997, the surface temperature and soil temperature of the second generation Chinese fir plantation were measured, and the results showed that the monthly mean values of surface temperature and soil temperature in the forest were lower than those in the forest, The forest has the effect of reducing the temperature on the surface of the earth is poor, the difference between the annual average of the poor and the forest outside the forest showed a trend of increasing year by year with the growth of young forest; within 0 ~ 5 cm soil layer, soil temperature with forest change rate Which is larger than that of the forest. The ability of young second-generation Chinese fir plantations to adjust surface temperature and soil temperature during the community construction is lower than that of the first-generation forest.