[1]LI Zhicong,HE Lirong,WU Yang,et al.Effect of Nitrogen Addition on Soil Carbon Components in Planted Pinus tabulaeformis Carr. Forest[J].Research of Soil and Water Conservation,2018,25(04):54-59.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 04
Page number:
54-59
Column:
Public date:
2018-06-13
- Title:
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Effect of Nitrogen Addition on Soil Carbon Components in Planted Pinus tabulaeformis Carr. Forest
- Author(s):
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LI Zhicong1, HE Lirong1, WU Yang1, QIAO Leilei2, XUE Sha2,3
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1. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
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- Keywords:
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nitrogen addition; Pinus tabuliformis Carr. plantation; soil carbon component; soil carbon pool activity coefficient
- CLC:
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S153.6
- DOI:
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- Abstract:
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In order to analyze the effect of nitrogen deposition on the composition and stability of soil carbon pool, Pinus tabuliformis Carr. was selected as the research object in this study. Nitrogen addition simulating nitrogen deposition was used to analyze the effects of short-term nitrogen deposition. The results showed that the SOC, the high activity component (C1), the middle activity component (C2) in the upper soil increased with the increase of the nitrogen contents, and the content of stability component (C4) firstly increased and then decreased, reaching to the maximum value at N3, and had little effect on the SOC and its components of the deep soil. Nitrogen addition has little effect on the distribution ratio of different carbon components in total organic carbon and the activity coefficient of soil carbon pool, and C4 has the largest proportion among the four components, reaching to 74.3%~87.3%. From the point of view of the stability of soil carbon pool, this study analyzed the effect of nitrogen addition on the carbon pool composition in the forest soils in the loess hilly region, which is conducive to the understanding of the impact of future global changes on soil carbon pool processes.