目的 探讨毛竹林土壤酶和土壤养分元素对地表覆盖翻耕的响应，为毛竹林覆盖经营提供科学指导。 方法 以浙江省台州市黄岩区山地毛竹林为研究对象，对稻草覆盖2年翻耕、覆盖2年未翻耕和自然生长（对照）的毛竹林0~50 cm各土层土壤酶活性及土壤养分含量进行比较研究。 结果 表明：（1）覆盖翻耕样地和未翻耕样地土壤多酚氧化酶活性均低于对照样地，且在0~20 cm土层差异显著；覆盖处理后，覆盖2年翻耕样地土壤过氧化物酶活性均低于对照样地（0~10 cm土层差异显著），覆盖2年未翻耕样地土壤过氧化物酶活性（10~20 cm土层除外）也均低于对照样地；土壤脲酶、蔗糖酶活性则显著增加。（2）覆盖处理后，土壤养分元素含量得到增加；覆盖翻耕样地土层土壤养分含量均先增加后降低，且在10~20 cm土层达到最大；翻耕处理与未翻耕处理相比，土壤全氮含量在0~30 cm土层差异达到显著水平。（3）土壤酶活性与土壤养分含量间存在一定的相关性，土壤脲酶和蔗糖酶与土壤各养分存在极显著正相关关系；土壤多酚氧化酶和土壤养分间均呈现负相关关系，土壤过氧化物酶与土壤有机质、有效磷间存在负相关关系，与其它土壤养分间存在正相关关系，但相关性均不显著。 结论 地表覆盖对毛竹林地土壤酶活性和土壤养分含量有显著影响，短期内地表覆盖可以显著提高毛竹林土壤肥力，且覆盖翻耕措施较利于增加土壤肥力。

[Objective]To study the effect of burning on soil organic carbon and to provide references for post-fire vegetation regeneration. [Method]The changes of organic carbon and nutrient contents in post-fire Cunninghamia lanceolata stand with the soil depth of 0~50 cm in north subtropical areas were analyzed. [Result]The contents of soil total organic carbon (TOC), easily-oxidized carbon (EOC) and light fraction organic carbon (LFOM) were higher than those of contrast sample area, which increased by 1.7%~38.0%、6.6%~33.2% and 3.1%~45.7%, respectively. Significant differences were found in the soil layer with depth of 0~10 cm and 10~20 cm (P-1 in 010 cm layer. [Conclusion]Moderate intensity burning has a significant impact on organic carbon in the soil of C. lanceolata stand in the north subtropical area. Moderate burning can increase the soil organic carbon because the soil can mix the organic residues caused by incomplete combustion of vegetation layer. Replanting in the burned area could be adopted to promote the vegetation restoration.