This dataset originates from a five-year in situ infrared warming experiment with multiple temperature gradients (+0℃, +0.8℃, +1.5℃, +3.0℃, +4.2℃) conducted in a subtropical primary forest in the Ailao Mountains of southwest China. It contains measurements of dissolved organic matter (DOM) content and compositional characteristics across different warming levels and soil depths, used to identify predominant factors influencing variation.
Use Cases
- Analyze the relationship between soil depth and DOM content using structural equation modeling to assess vertical stratification effects.
- Investigate the impact of warming levels (+0℃ to +4.2℃) on DOM molecular composition, such as humic-like substances, via fluorescence analysis.
- Model the influence of nutrient availability on DOM content using random forest analysis to identify key regulatory factors.
- Examine changes in DOM aromaticity, humification degree, and molecular weight across warming scenarios using ultraviolet spectroscopy data.
- Compare the degradation and accumulation patterns of low molecular weight DOM in surface versus deeper soil layers under warming using Fourier transform infrared spectroscopy data.
Strengths
- Data is based on a five-year in situ experimental study, providing longitudinal observations.
- The experiment includes multiple, precisely defined warming gradients (+0℃, +0.8℃, +1.5℃, +3.0℃, +4.2℃) for comparative analysis.
- Analysis incorporates multiple spectroscopic methods (fluorescence, FTIR, UV) to characterize DOM composition.
Limitations
- Specific data structure (rows, columns, file formats) and sample size are not provided in the input.
- The dataset is geographically limited to a single primary forest site in the Ailao Mountains, southwest China.
- The description focuses on findings (e.g., 'warming did not significant affect the overall DOM content'), which may indicate the primary measured effect was limited.
Provenance
- Source
- Zhou, Qingqiu; ICPSR Harvested Dataverse
- Collection Method
- Five-year in situ infrared warming experiment with systematic evaluation of DOM content and composition across warming levels and soil depths.
- Time Range
- Five-year experimental period (specific years not stated).
- Freshness
- null
- Geography
- Subtropical primary forest, Ailao Mountains, southwest China.