1st layer | 2nd layer | 3rd layer | 4th layer | Weight |
---|---|---|---|---|
Ecological Unsafety Index (A) | Pressure (B 1 ) | Population Pressure (C1) | Natural Population Growth Rate (D1) | 0.0174 |
 |  |  | Population Density (D2) | 0.0174 |
 |  | Land Pressure (C2) | Per Capita Arable Land (D3) | 0.0423 |
 |  |  | Area Proportion of Soil and water Loss (D4) | 0.1395 |
 |  | Pollution Pressure (C3) | Fertilizer Load (D5) | 0.0397 |
 |  |  | Pesticide Load (D6) | 0.0397 |
 | Status (B2) | Environmental Status (C4) | Probability of Natural Disaster (D7) | 0.0749 |
 |  |  | Forestry and Grass Coverage (D8) | 0.0943 |
 |  |  | Soil Erosion Modulus (D9) | 0.1188 |
 |  | Natural Resources Status (C5) | Effective Thickness of Soil Layer (D10) | 0.1113 |
 |  |  | Precipitation Rate of April~May to July~August (D11) | 0.0701 |
 | Response (B3) | Social Response (C6) | Effective Irrigation Rate of Arable Land (D12) | 0.0394 |
 |  | Environmental Response (C7) | Agricultural Technican Numbers Per Ten Thousand People (D13) | 0.0156 |
1 | Â | Economic Response (C8) | Area Proportion of Soil and Water Loss Control (D14) | 0.1102 |
 |  |  | Per Capita Rural Net Income (D15) | 0.0347 |
 |  |  | Agriculture Production Per Unit Cultivated Land (D16) | 0.0347 |