采用静态箱-气相色谱法对浙江省临安市玲珑山风景区天然阔叶林和由天然阔叶林改造的杉木人工林的土壤呼吸进行1年的定位监测.结果表明：天然阔叶林和杉木人工林土壤CO2排放速率均呈现一致的季节性变化规律即夏秋季高、冬春季低;天然阔叶林和杉木人工林土壤CO2排放速率分别为20.0～111.3和4.1～118.6 mg C·m-2·h-1;天然阔叶林土壤CO2年累积排放通量（16.46 t CO2·hm-2·a-1）显著高于杉木人工林（11.99 t CO2·hm-2·a-1）.天然阔叶林和杉木人工林土壤CO2排放速率与土壤含水量均没有显著相关性,而与5 cm处土壤温度呈显著指数相关,Q10值分别为1.44和2.97;天然阔叶林土壤CO2排放速率与土壤水溶性碳（WSOC）含量无显著相关性,杉木人工林土壤CO2排放速率与WSOC含量呈显著相关.天然阔叶林转换为杉木人工林显著降低了土壤CO2排放,提高了土壤呼吸对环境因子的敏感性.
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