Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Discussion papers
https://doi.org/10.5194/bg-2017-408
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2017-408
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 23 Oct 2017

Submitted as: research article | 23 Oct 2017

Review status
This discussion paper is a preprint. It has been under review for the journal Biogeosciences (BG). The manuscript was not accepted for further review after discussion.

Variations in soil carbon, nitrogen, phosphorus and stoichiometry along forest succession in southern China

Shuai Ouyang1,2, Wenhua Xiang1,2, Mengmeng Gou3, Pifeng Lei1,2, Liang Chen1,2, Xiangwen Deng1,2, and Zhonghui Zhao1,2 Shuai Ouyang et al.
  • 1Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
  • 2Huitong National Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystems in Hunan Province, Huitong, Hunan 438107, China
  • 3Chinese Research Academy of Environmental Science, Beijing, 100012, China

Abstract. Floristic composition changes during forest succession influence nutrient cycling. However, variation patterns of soil carbon (C), nitrogen (N), and phosphorous (P), and soil stoichiometry (C : N, C : P, and N : P ratios) along forest succession are controversial. In this study, soil samples were collected at depths of 0–10, 10–20, and 20–30 cm in three forests at early, middle, and late succession stages. Concentrations of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) were measured. As succession proceeds, concentrations and storage of SOC and TN exhibited a significant increasing tendency, while those of TP decreased significantly. The tendency was more pronounced (P < 0.05) in soil depths of 0–10 cm, implying that more SOC, TN, and TP were stored in the upper soil layer. The ratios of soil C : P and N : P increased far more than the C : N ratio with succession progress, indicating that forests in this region were primarily limited by P over time. The C : N, C : P, and N : P ratios decreased from the upper to lower soil layers at almost all succession stages. A significantly positive correlation was found between the SOC, TN, and TP concentrations (P < 0.05), implying a relatively constrained C : N : P ratio in this subtropical forest soil. Stand density, litter, soil bulk density, pH, texture, and elevation significantly affected SOC, TN, and TP concentrations and their storage. The effects of succession stage, stand density, soil depth, and soil properties on soil nutrient balance should be considered in future studies.

Shuai Ouyang et al.
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Shuai Ouyang et al.
Shuai Ouyang et al.
Viewed  
Total article views: 731 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
440 278 13 731 3 11
  • HTML: 440
  • PDF: 278
  • XML: 13
  • Total: 731
  • BibTeX: 3
  • EndNote: 11
Views and downloads (calculated since 23 Oct 2017)
Cumulative views and downloads (calculated since 23 Oct 2017)
Viewed (geographical distribution)  
Total article views: 711 (including HTML, PDF, and XML) Thereof 708 with geography defined and 3 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 17 Sep 2019
Publications Copernicus
Download
Short summary
Our results showed that forest succession affected SOC, TN, and TP concentrations, storage and stoichiometry. SOC and TN exhibited a significant increasing tendency, while those of TP decreased significantly, indicating an increasing P limitation for plant growth as succession proceeded.
Our results showed that forest succession affected SOC, TN, and TP concentrations, storage and...
Citation