DOI: 10.5281/zenodo.17892920
title: Data for: Resonance of Resilience: Spectral Evidence of Cross-Scale Coupling in Vegetation Response to Climate Extremes

description: The ecological response to combined hot–dry extremes often show non-linearities that deviate from the magnitude of atmospheric forcing. Although the severity of drought and loss in carbon uptake tend to increase with extraordinarily high temperature, South Chinese monsoon forests displayed an anomaly that gross primary production collapsed during extreme heatwave (2003), but kept stable under meteorologically even more severe (2013). Here we reconcile this discrepancy with a physics-based spectral decomposition which reveals an emergent, intrinsic 38.5-day spectral gap which separates fast physiological responses and slow ecological memory. We demonstrate that resistance is governed by Ecological Amplitude Modulation (EAM) rather than fixed resource thresholds. The 2003 crash was a resonance catastrophe caused by the phase-locking of high-energy ecological memory with high-frequency weather shocks. Distilling the 2013 resilience, it was of course born from spectral diffusion: a large degree-of-freedom high-entropy regime that diffusively spreads out stress over various time scales. These results establish a biophysical mechanism for structural overshoot and suggest that the stability of ecosystems depends on preserving spectral topology, thereby questioning existing formulations of drought legacies in Earth system models.



paper_mechanism/

├── README.md                      # This file (submission documentation)

││

├── data/                          # Data directory

│   └── fast_meemd/                # Fast-MEEMD analysis results

│       ├── k_sensitivity_results.txt           # K sensitivity analysis results

│       ├── fast_meemd_results_2003.nc          # 2003 Fast-MEEMD results

│       ├── fast_meemd_results_2013.nc          # 2013 Fast-MEEMD results

│       ├── carrier_modulation_k8_2003.nc      # 2003 carrier-modulation fields (K=8)

│       ├── carrier_modulation_k8_2013.nc      # 2013 carrier-modulation fields (K=8)

│       ├── imf_physics_k8_2003.nc              # 2003 IMF physical properties

│       ├── imf_physics_k8_2013.nc              # 2013 IMF physical properties

│       ├── imf_spectral_groups_k8_2003.txt     # 2003 IMF spectral groups

│       ├── imf_spectral_groups_k8_2013.txt     # 2013 IMF spectral groups

│       ├── imf_physics_summary_k8_2003.txt     # 2003 IMF physical properties summary

│       ├── imf_physics_summary_k8_2013.txt     # 2013 IMF physical properties summary

│       ├── imf_interaction_matrix_k8_2003.txt # 2003 IMF interaction matrix

│       ├── imf_interaction_matrix_k8_2013.txt # 2013 IMF interaction matrix

│       └── [Other intermediate result files]

│

├── results/                       # Analysis results directory

│   ├── annual_pcmci/             # Annual PCMCI analysis results

│   │   ├── pcmci_2003_ANNUAL.nc

│   │   ├── pcmci_2013_ANNUAL.nc

│   │   ├── all_lags_2003_ANNUAL.nc

│   │   └── all_lags_2013_ANNUAL.nc

│   ├── bootstrap_cache/          # Bootstrap cache results

│   └── pcmci_separated/          # Separated PCMCI results

│

├── figures/                       # Figure output directory

│   ├── step0_ano_gpp4sc.png              # Step 0: GPP anomaly distribution

│   ├── step1_jphs_analysis.png           # Step 1.1: JPHs analysis figure

│   ├── step2.1_pcmci_failure.png         # Step 1.2.2: PCMCI failure diagnosis figure

│   ├── step2.2_kde_lag_distribution.png # Step 1.2.3: KDE lag distribution figure

│   ├── step2.2_bootstrap_robustness.png # Step 1.2.4: Bootstrap robustness test figure

│   ├── step3.0_k_sensitivity.png        # Step 2.0: K sensitivity analysis figure

│   ├── step3.1_imf_spectral_diagnosis_k8_combined.png  # Step 3.1: IMF spectral diagnosis figure

│   ├── step3.1_imf_period_distribution_k8_*.png        # Step 3.1: IMF period distribution figures

│   ├── step3.2_energy_maps_k8.png       # Step 3.2: Energy distribution maps

│   ├── step3.3_figure4_combined_k8.png  # Step 3.3: Figure 4 combined plot

│   ├── table1_anomaly_comparison.png    # Table 1: Anomaly comparison figure

│   └── table1_anomaly_comparison.txt    # Table 1: Anomaly comparison data

│

└── logs/                          # Running logs directory

    └── [Running log files for each script]