Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation

GE Zhiwei, PENG Sai, XU Kai, XU Yu, YU Shuiqiang, RUAN Honghua, XU Changbai, CAO Guohua

Journal of Nanjing Forestry University (Natural Sciences Edition) ›› 2014, Vol. 38 ›› Issue (06) : 23-27.

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Journal of Nanjing Forestry University (Natural Sciences Edition) ›› 2014, Vol. 38 ›› Issue (06) : 23-27. DOI: 10.3969/j.issn.1000-2006.2014.06.005

Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation

  • GE Zhiwei1, PENG Sai1, XU Kai1, XU Yu1, YU Shuiqiang1, RUAN Honghua1*, XU Changbai2, CAO Guohua2
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Abstract

Short-term nitrogen addition experiment was conducted to examine the response of topsoil(0-10 cm)dissolved organic carbon(DOC)in northern Jiangsu province, the concentrated distribution area of poplar plantation. The results showed DOC increasing was observed in topsoil of poplar plantation along with the increasing of nitrogen addition concentration and the variation caused by ages was reduced; significant positive linear regression correlation was found between soil microbial biomass carbon(SMBC)and DOC during the analysis of impact factors in topsoil of nitrogen addition experiment, but did not exist with the amount of litter or fine root biomass.

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GE Zhiwei, PENG Sai, XU Kai, XU Yu, YU Shuiqiang, RUAN Honghua, XU Changbai, CAO Guohua. Effects of short term nitrogen addition on dissolved organic carbon in topsoil of poplar plantation[J]. Journal of Nanjing Forestry University (Natural Sciences Edition). 2014, 38(06): 23-27 https://doi.org/10.3969/j.issn.1000-2006.2014.06.005

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