Response of dissolved organic matter characteristics to nitrogen addition in a boreal peatland of Northeast China
Ecological Indicators（2023）
摘要
•Nitrogen addition decreased DOC concentration across growing season.•Nitrogen addition altered DOM chemical composition in soil pore water.•Compositional transformations of DOM did not change its biogenic signals.•Seasonality of biotic/abiotic drivers constrained inner links of DOM characteristics.•Permafrost-induced retention reinforced edaphic DOC as a potential substrate.
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关键词
Dissolved organic carbon, Fluorescence analysis, Humic-like components, Increased N availability, Permafrost peatland
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