JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (6): 187-194.doi: 10.12302/j.issn.1000-2006.202206017

Special Issue: 南京林业大学120周年校庆特刊

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A review on the soil organic carbon cycling under water erosion

LIN Jie1(), ZHANG Xiang2, JIANG Jiang1, KUAI Jie1, GUO Geng1, MENG Miaojing1, LI Xiao3   

  1. 1. College of Forestry, Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration, Nanjing Forestry University, Nanjing 210037, China
    2. Suzhou Water Conservancy Design and Research Institute Co., Ltd., Suzhou 215000, China
    3. College of Resources & Environment,Huazhong Agricultural University, Wuhan 430070, China
  • Received:2022-06-13 Revised:2022-07-12 Online:2022-11-30 Published:2022-11-24

Abstract:

Water erosion was the focus and hot field of soil erosion research. It was of great significance to study the dynamics of soil organic carbon during erosion and deposition under water erosion for evaluating the “source & sink” effect of soil carbon. The study summarized the research status of soil carbon cycle under water erosion, expounds the research and methods of soil carbon mineralization in the process of soil water erosion, and clarified the dynamics of soil organic carbon in the process of soil water erosion from three aspects: the quantitative research of soil organic carbon mineralization, the redistribution of organic carbon and the influence of organic carbon mineralization. The main achievements of organic carbon in the process of soil water erosion at home and abroad are compared and analyzed. It is suggested that the whole process of water erosion, such as destruction, transportation and deposition, should be accurately analyzed and quantified in future research. On this basis, the response mechanism of carbon mineralization characteristics under the combined action of physics, chemistry and biology should be revealed, and the dynamics of soil carbon budget during water erosion should be comprehensively explored to quantify the contribution of soil erosion to the global soil carbon cycle.

Key words: soil erosion, water erosion, organic carbon mineralization, carbon cycle, erosion and deposition process

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