Table 7 Classification criteria of GPP temporal changes at a significance level of \(\alpha =0.05\).
From: GPP estimation based on CatBoost and analysis of change driving factors in Shanxi Province, China
Category | Criteria (S, Z) |
|---|---|
Significant degradation | S \(< -\)0.0005, \(Z\geqslant \left| \pm 1.96 \right|\) |
Slight degradation | S \(< -\) 0.0005, -1.96 < Z < 1.96, |
Basic stabilization | -0.0005 < S < 0.0005 |
Slight improvement | S \(< 0.0005, -1.96\) < Z < 1.96 |
Significant improvement | S < 0.0005, \(Z\geqslant \left| \pm 1.96 \right|\) |
