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Soil nitrogen status of larch plantations in comparison with secondary broad-leaved forest

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Abstract

Soils were collected from three neighboring forest sites: 36-year-old larch plantation, 11-year-old larch plantation, and natural secondary broad-leaved forest (as control). Soil pH, total C, total N, C/N ratio, and available N (NO3-N and NH4-N) were measured. Laboratory incubations of soil samples were conducted during a 50 days period for the measurement of nitrogen mineralization rate and nitrification potential. The results proved a degeneration in soil nitrogen status with stand age of larch plantations, which implicated one important aspect of soil degradation when natural forest was replaced by coniferous plantations.

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Authors and Affiliations

  1. Northeast Forestry University, 150040, Harbin, P.R. China

    Cui Xiaoyang

  2. Heilongjiang Research Institute of Forest Management, 150040, Harbin, China

    Zheng Guoqing

Authors
  1. Cui Xiaoyang
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  2. Zheng Guoqing
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Additional information

The study was supported by the Chinese Natural Science Fundation (39770608)

(Responsible Editor: Chai Ruihai).

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Xiaoyang, C., Guoqing, Z. Soil nitrogen status of larch plantations in comparison with secondary broad-leaved forest. Journal of Forestry Research 9, 13–15 (1998). https://doi.org/10.1007/BF02856446

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  • DOI: https://doi.org/10.1007/BF02856446

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