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作 者 ：康文星 田大伦 刘煊章

期 刊 ：林业科学 1997年 33卷 zk2期 页码：47-54

关键词：第二代杉木人工林；温度；生态恢复；

Keywords:Chinese fir, Second generation, Temperature, Ecological restoration,

摘 要 ：本文以连续4年的数据，对第二代杉木人工林对温度的生态恢复进行了研究。结果表明：幼林对气温的调节恢复速率比较大，栽后第2年对气温的调节能力已恢复到成熟林的26％，4年后，已接近70％。幼林阶段，人为干扰(垦抚)可以削弱幼林对表土层土温的调节作用。自然条件下，在0—20cm土层内，幼林对土温的调节的恢复速率随土层深度增加而下降。而且对土温调节的恢复速率比气温慢。表明幼林林地恢复到成熟林林地的土壤的物理性能水平需要一般较长的时间。

Abstract:A four—year’S study on ecological restoration on temperature characteristics in the second generation of Chinese fir has been carried out at Huitong county，Hunan Provice，26°50′N，109°45′E．The results showed that the ecological restoration of temperature in young stands was very fast．Two years after afforestation，the ecological restoration could attain to 26％ of that of the mature stand，and 4 years later it could reach to 70％．In young stand，artificial disturbance of cultivation might decrease ecological restoration on surface soil temperature．Under natural condition，the ecological restoration speed on soil temperature within the young stand decreased as the soil layer deepened，and it was smaller than that of air temperature．This means that the soil physics within young stand will take a longer time to resorate to the level in mature stand．

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