[Relationships between soil organic carbon and environmental factors in gully watershed of the Loess Plateau].

Understanding the distribution of organic carbon fractions in soils and their relationships with environmental factors are very important for appraising soil organic carbon status and assessing carbon cycling in the Loess Plateau. In this research, through field investigation and laboratory analysis, we studied the relationships between soil organic carbon and environmental factors in a gully watershed of the Loess Plateau. The environmental factors are landforms, land use conditions and soil types.