[1]QU Hongyun,JIA Guomei,XIANG Hanyu,et al.Seasonal Dynamics of Soil Oxidizable Organic Carbon Fractions in Substrate of Eco-Restoration of Vegetation Concrete[J].Research of Soil and Water Conservation,2019,26(05):28-33.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 05
Page number:
28-33
Column:
Public date:
2019-09-06
- Title:
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Seasonal Dynamics of Soil Oxidizable Organic Carbon Fractions in Substrate of Eco-Restoration of Vegetation Concrete
- Author(s):
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QU Hongyun1, JIA Guomei1,2, XIANG Hanyu1, YUE Yunfei1
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1. College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, China;
2. Hubei International Center for Ecological Protection and Management in the Three Gorges Area, Yichang, Hubei 443002, China
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- Keywords:
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soil; oxidizable organic carbon fraction; seasonal dynamics; driving factor; eco-restoration of vegetation concrete
- CLC:
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S153.6+21
- DOI:
-
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- Abstract:
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Soil oxidizable organic carbon fractions can sensitively respond to variations in soil quality. In order to investigate the seasonal dynamics of soil oxidizable organic carbon fractions and their driving factors in substrate of eco-restoration of vegetation concrete, the concentration of oxidizable organic carbon fractions (F1, F2, F3 and F4) of eco-restoration of vegetation concrete were determined. The results showed that F1 was the lowest in the summer and highest in the winter, respectively, F2 was highest in the summer and lowest in the winter, respectively.F3 was lowest in the summer, F4 was significantly lower both in the spring and summer than those both in the autumn and winter; (F1+F2)/TOC was higher in the spring and the summer than that in the autumn and winter, and (F3+F4)/TOC was reversed, indicating that organic carbon was labile in spring and summer, respectively, and was stable in autumn and winter, respectively; F1 was the highest in spring, autumn and winter, respectively, and F2 was the highest in summer among four fractions, indicating that F1 can be used as a sensitive indicator for the changes in soil quality. Redundancy analysis showed that changes in climatic, physicochemical properties of sabstrate and slope gradient were the main factors that governed the seasonal dynamics of soil oxidizable organic carbon fractions, especially F1 and F2 fractions.