›› 2017, Vol. 29 ›› Issue (5): 806-811.DOI: 10.3969/j.issn.1004-1524.2017.05.17

• Environmental Science • Previous Articles     Next Articles

Influence of land use changes on soil organic carbon distribution in agricultural soils

YU Zhoulu1, QIU Lefeng2, LIN Lin1   

  1. 1. College of Environment and Resource Science, Zhejiang University, Hangzhou 310058, China;
    2.Institute of Rural Development,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021, China
  • Received:2016-12-27 Online:2017-05-20 Published:2017-06-06

Abstract: In the present study, geo-statistic method and GIS were combined to reveal the temporal and spatial variation characteristics of soil organic carbon (SOC) in 0-20 cm soil layer. It was shown that the mean SOC in Fuyang District was 17.3 g·kg-1 in 1979 and 18.5 g·kg-1 in 2006. Geo-statistical analysis indicated that SOC had a moderate spatial correlation. Different land use types had significantly influence on soil fertility levels. SOC content of different land use types decreased as vegetable land>forest land>paddy field>dry land>unused land>orchard. The main driving force of SOC variation in the study area was the management measures of different land use types. The treatment of wastewater, wastes, and use of manure and chemical fertilizers directly influenced SOC content in soil. These results could provide references for SOC management.

Key words: soil organic carbon, geo-statistics, temporal and spatial variation, land use

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