Based on field survey and laboratory analysis, this paper studied the storage of surface soil (0-20 cm) organic C (SOC) and total N (TSN) in farmland, orchard, woodland and grassland in the Yangou watershed of loess hilly-gully region. The results showed that in the test area, the mean contents of SOC and TSN were 7.56 and 0.71 g·kg-1, respectively. On an average, farmland had 4.67 g·kg-1 of SOC and 0.48 g·kg-1 of TSN, and terrace farmland had lower storage of SOC and TSN than other types of farmland. Compa...
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