Fractional Linear Regression Equation in Agricultural Disaster Assessment Model Based on Geographic Information System Analysis Technology
, , , and | Nov 22, 2021
About this article
Published Online: Nov 22, 2021
Page range: 275 - 284
Received: Jun 17, 2021
Accepted: Sep 24, 2021
DOI: https://doi.org/10.2478/amns.2021.2.00096
Keywords
© 2021 Lihua Wen et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
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Rainfall duration index assignment standard
| 1 | ≥ 6 |
| 2 | 4 ≤ T < 6 |
| 3 | 2 ≤ T < 4 |
| 4 | <2 |
Evaluation standard of daily precipitation intensity index
| 1 | ≥ 80.0 |
| 2 | 60.0–79.9 |
| 3 | 40.0–59.9 |
| 4 | 20.0–39.9 |
Elevation and elevation standard deviation evaluation criteria
| ≤ 1 | 1–10 | ≥ 10 | |
|---|---|---|---|
| ≤ 100 | 0.9 | 0.8 | 0.7 |
| 100–300 | 0.8 | 0.7 | 0.6 |
| 300–700 | 0.7 | 0.6 | 0.5 |
| ≥ 700 | 0.6 | 0.5 | 0.4 |
Grading Standard of Comprehensive Rainfall Intensity Index
| Super strong | 1 ≤ RSI ≤ 4 |
| Strong | 4 < RSI ≤ 8 |
| Stronger | 8 < RSI ≤ 12 |
| Medium | 12 < RSI ≤ 16 |