[1]MA Rui,MA Weiwei,LI Guang,et al.Litter Decomposition and Dynamics of Organic Carbon in Degraded Vegetation of Gahai Wetland[J].Research of Soil and Water Conservation,2017,24(06):29-34.
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Litter Decomposition and Dynamics of Organic Carbon in Degraded Vegetation of Gahai Wetland
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 06
Page number:
29-34
Column:
Public date:
2017-11-24
- Title:
- Litter Decomposition and Dynamics of Organic Carbon in Degraded Vegetation of Gahai Wetland
- CLC:
- S153
- DOI:
- -
- Abstract:
- In this study, peat swamps and swamp meadows with different degrees of degradation in Gannan Gahai wetland area were selected to explore the decomposition rate and the organic carbon content of litter during different vegetation degradation process in two years, based on field sampling and laboratory analysis. The results showed that the organic carbon content and decomposition rate of litter decreased significantly with the degradation of vegetation (p<0.05). The decomposition rate decreased from June to September, and the maximum of it was observed in the undegraded peat swamp PI (0.009/d) in 2013, and the minimum was found in the moderately degenerate swamp meadow SⅢ (0.001 3/d) in 2014. Average content of organic carbon in litter of peat swamp decreased in the order:ungraded PI (515.07 g/kg)>degraded PⅡ (489.62 g/kg), mean concentration of organic carbon in litter of swamp meadow decreased in the order:ungraded SI (541.26 g/kg)>lightly degraded SⅡ (488.28 g/kg)>moderately degraded SⅢ (456.01 g/kg), and the absolute carbon content of litter decreased in the two years, indicating that it occurred net release. The litter decomposition rate, organic carbon content and absolute carbon content decreased with the vegetation degradation process.
- References:
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1900-01-01