Additional file 1 of Nitrogen addition mediates the response of foliar stoichiometry to phosphorus addition: a meta-analysis
Bibliographic record
Abstract
Additional file 1: Figure S1. Global distribution of the study sites included in the meta-analysis. Figure S2. Repeat analysis of the effects of phosphorus (P) addition on the foliar nitrogen (N) concentrations (a), foliar P concentrations (b), and foliar N to P ratios (c) for different sample sizes. Figure S3. Frequency distribution of the response ratio (RR) of phosphorus (P) addition on the foliar nitrogen (N) concentrations (a), foliar P concentrations (b), and foliar N to P ratios (c). The curves were fitted by a Gaussian function. Figure S4. Response ratios of the foliar nitrogen (N): phosphorus (P) ratios to the P addition rates (a) without N addition (b) with N addition. Different letters indicate significant differences between the P addition rates at the 0.05 level. Table S1. Comparison of the effects of phosphorus (P) addition with or without N addition on the foliar nitrogen (N) concentrations (Foliar N), foliar P concentrations (Foliar P), foliar N to P ratios (Foliar N:P), N resorption efficiency (NRE), P resorption efficiency (PRE), soil N availability (Soil N) and soil P availability (Soil P). The effect sizes indicate the mean of the effect of P addition on the variables, and 95% CI represents the 95% confidence interval. The heterogeneity between subgroups (Qb, QB) is significant at p < 0.05; Qb represents the difference between each grouping variable (including the P addition rates, the experimental durations, the community and species levels and the plant growth types), and QB indicates that the effects of P addition with N addition on the target variables are different from those without N addition. Table S2. Correlation analysis of the relationship between the response ratio (RR) of the foliar nitrogen concentration (N), phosphorus (P), N to P ratios (N:P) and N and P resorption efficiencies (NRE and PRE, respectively), and soil N and P availabilities (Soil N and Soil P, respectively). The numbers in black in the upper right refer to P addition without N addition, and the numbers in blue in the lower left refer to P addition with N addition. The numbers inside and outside the parentheses represent the sample sizes and correlation coefficients, respectively. * and ** indicate the relationship is significant at the p < 0.05 and p < 0.01 level, respectively. Table S3. F-values from the regression analysis of the relationship between the response ratios (RRs) of foliar nitrogen (N) concentrations (Foliar N), foliar phosphorus (P) concentrations (Foliar P), foliar N to P ratios (Foliar N:P ratios), N and P resorption efficiencies (NRE and PRE, respectively) and soil N and P availabilities (Soil N and Soil P, respectively) to P addition with and without N addition and geographical [including latitude (°), longitude (°) and altitude (m)] and climatic factors [i.e., mean annual precipitation (MAP, mm) and the mean annual temperature (MAT, °C)]. Appendix S1. List of 168 articles from which data were extracted for the meta-analysis.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.998 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".