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Chinese Journal of Applied Ecology ›› 2018, Vol. 29 ›› Issue (1): 25-32.doi: 10.13287/j.1001-9332.201801.009

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Storage of carbon and nitrogen in Quercus and Platycladus orientalis plantations at different ages in the hilly area of western Henan Province, China.

WANG Yan-fang1,2, LIU Ling1, LI Zhi-chao3, SHI Xiao-feng4, YANG Xiao-yan4, SHANGGUAN Zhou-ping2*   

  1. 1College of Agriculture, Henan University of Science and Technology, Luoyang 471023, Henan, China;
    2State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China;
    3Luoyang Forest Inventory and Planning Station, Luoyang 471000, Henan, China;
    4Yanshi Forestry Bureau, Yanshi 471900, Henan, China
  • Received:2017-06-14 Online:2018-01-18 Published:2018-01-18
  • Contact: * E-mail: shangguan@ms.iswc.ac.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31700367), the National Key Research and Development Program of China (2016YFC0501605), the National Sci-Tech Basic Program of China (2014FY210100) and the HAUST Discipline Improvement and Promotion Plan A (13660001).

Abstract: In the study, the method of space substituting time was used to investigate the distribution pattern of carbon and nitrogen storages in Quercus and Platycladus orientalis plantation ecosystems at different ages in hilly area of western Henan Province, China. We also analyzed the dynamic changes of soil carbon and nitrogen storages in different soil layers in the two plantation ecosystems. The results showed that the carbon storage in the arbor and litter layers increased with the increasing tree age. The storage of carbon and nitrogen in soil aggregated mainly in the surface layer and showed a trend of decrease-increase-decrease with the increasing tree age in all soil layers. The ranges of carbon and nitrogen storage in the surface soil were 20.31-50.07 and 1.68-2.12 t·hm-2 in Quercus plantation, and 23.99-48.76 and 1.59-2.34 t·hm-2 in P. orientalis plantation, respectively. Carbon storage ranges in Quercus and P. orientalis plantation ecosystems at different ages were 52.04-275.82 and 62.18-279.81 t·hm-2, respectively. The carbon sequestration capacity in P. orientalis plantation was a little higher than that in Quercus plantation. Soil C/N increased with the increase of afforestation age.