作　　者： (郭振）; (王小利）; (段建军）;

机构地区： 贵州大学农学院,贵州贵阳550025

出　　处： 《山地农业生物学报》 2017年第4期55-63,共9页

摘　　要： 土壤活性有机碳作为土壤有机碳中比较活跃的化学组分,在陆地碳的循环研究中扮演了非常重要的作用。土壤活性有机碳可用溶解性有机碳(DOC)、轻组有机碳(LFC)、易氧化有机碳(LOC)、土壤微生物生物量碳(SMBC)和潜在可矿化碳(PMC)表示。本文综述了这五种活性有机碳的分组和测定方法,以及活性有机碳对不同施肥措施、不同耕作措施和土地利用方式的响应。表明在不同土地管理措施下,土壤活性有机碳的不同组分均发生相应变化,这对调节土壤养分循环、维持土壤肥力和完善碳循环的动态平衡机制具有十分重要的意义。并展望了今后的研究方向,以期为农业的可持续发展提供科学参考,为土壤养分的高效利用和土地的科学管理奠定基础,为开展有机质的累积与矿化提供依据。 Soil active organic carbon plays a very important role in the study of terrestrial carbon cycle as the active chemical component in organic carbon. The active organic carbon in soil involved microbial biomass carbon, dissolved organic carbon, mineralizable carbon, oxidizable carbon, and light fraction carbon. This paper summarized the fractionation methods of this five soil active organic and its response to fertilization, different tillage bon c measures and land use pattern. The results showed that different components of soil active organic carhanged under different land management measures, which was very important for regulating soil nutrient cycling, maintaining soil fertility and improving the dynamic balance mechanism of carbon cycle. And prospect the research direction in the future, in order to provide scientific reference for the sustainable development of agriculture, to lay the foundation for the efficient use of nutrients in the soil and the scientific management of land, to provide a basis for the accumulation and mineralization of organic matter.

关 键 词： 活性有机碳 分组 测定方法 管理措施 响应