以湖北省典型冷泉烂泥型冷浸田为研究对象,结合旱育秧垄作栽培技术,设计垄高10 cm(LG10)、15 cm(LG15)、20 cm(LG20)与平作(CK)定位田间试验,比较2011年和2012年水稻生育期内土壤有机碳、活性有机碳和难降解有机碳的变化。结果表明,在水稻生育期内不同处理土壤有机碳和活性有机碳呈先增加后降低的趋势,在水稻灌浆期达到较高值。垄高LG15和LG20与CK处理相比,土壤活性有机碳和难降解有机碳含量明显增加,说明冷浸田垄作免耕对其累积有促进作用。 In this paper, cold paddy field with typical cold spring in Hubei Province was selected as the research object. Field cultivation was conducted with LG10, LG15, LG20 and CK as the research objectives. The changes of soil organic carbon, active organic carbon and refractory organic carbon during the growth of rice in 2011 and 2012 were compared. The results showed that soil organic carbon and active organic carbon in different treatments increased firstly and then decreased, and reached a higher value at the grain filling stage. Compared with CK, the contents of active organic carbon and refractory organic carbon in LG15 and LG20 with ridge height were significantly increased, which indicated that the ridge-tillage and cold-tillage with no-tillage could promote their accumulation.