Notice of RetractionThe study on soil carbon and nitrogen characteristics of different land use

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

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Based on field sampling and indoor analytical test, the authors analyzed soil carbon and nitrogen content and SOC density in different land use in Shanghai. The result shows that carbon density of several land use is in order of paddy field, dry land, woodland, abandoned land, urban greening land and garden plot and tidal flat. SOC and TN content and SOC density of paddy field were significantly higher than other land use types, which indicates that in the plain areas on the lower-middle reaches of Yangtze River with fertile soil and better heat and water conditions, and higher tillage management level, paddy field soil has higher soil carbon and nitrogen immobilization capacity. The lowest SOC and TN content and SOC density of tidal flat is mainly because of the salinization effect which leads higher soil salinity content, abnormal soil development, poor physicochemical characters, low fertility level and lower soil sequestering carbon capacity. There is significant difference of soil C and N content and SOC density in different land use, while the disturbance of human activity is the main reason for the difference.