0 | 0 | 0.58 | 0.90 | 1.12 | 1.24 | 1.32 | 1.41 | 1.45 |
Health index | 0.256962 | 0.140323 | 0.307203 | 0.25262 |
Health level | IV | V | IV | IV |
0–0.2 | Mild stress |
0.2–0.4 | Small pressure |
0.4–0.6 | Medium pressure |
0.6–0.8 | High pressure |
0.8–1.0 | Extreme pressure |
0.8–1.0 | A | The ecosystem has stable structure and function, and the system possesses adequate strength to recover and regenerate. |
0.6–0.8 | B | The ecosystem function is relatively perfect, and can recover after being commonly disturbed. |
0.4–0.6 | C | Although damaged to a certain extent, the ecosystem can still maintain its basic functions. |
0.2–0.4 | D | The structure and function of the ecosystem are degraded, biodiversity declines and environmental problems are serious. |
0–0.2 | E | The structure and function of the ecosystem have almost collapsed, and the ecological environment has become seriously damaged. |
State subsystem | Biology and ecology | Diversity of species |
Environmental quality | Water quality | |
Biological productivity | Conversion between nutrient levels | |
Total energy conversion |
I | ≥0.8 | A | The ecosystem has stable structure and function, and the system has adequate strength to recover and regenerate. |
II | 0.6–0.8 | B | The ecosystem function is relatively perfect, and can recover after being commonly disturbed. |
III | 0.4–0.6 | C | Although damaged to a certain extent, the ecosystem can still maintain its basic functions. |
IV | 0.2–0.4 | D | The structure and function of the ecosystem are degraded, biodiversity declines and environmental problems are serious. |
V | ≤0.2 | E | The structure and function of the ecosystem have almost collapsed, and the ecological environment has become seriously damaged. |
Pressure subsystem | Anthropic pressure | Density of population |
Per capita GDP | ||
Urbanisation rate | ||
Noise pollution | ||
Light pollution | ||
Natural pressure | Mangrove pest | |
Extreme temperature weather per year |
Response subsystem | Social response | Proportion of the tertiary industry |
Education level of the population | ||
Investment in environmental pollution | ||
Planning regulations and policies | ||
Degree of public participation |
0 | 50 | 0 |
1 | 55 | 0.2 |
2 | 60 | 0.5 |
3 | 65 | 0.7 |
4 | 70 | 1.0 |
Pressure subsystem 0.41173 | Anthropic pressure 0.36391 | Density of population | 0.55 | 0.04782 | 0.02630 |
Per capita GDP | 1 | 0.09873 | 0.09873 | ||
Urbanisation rate | 0.8 | 0.07902 | 0.06322 | ||
Noise pollution | 0.6 | 0.05932 | 0.03559 | ||
Light pollution | 0.8 | 0.07902 | 0.06322 | ||
Natural pressure 0.04782 | Mangrove pest | 0.5 | 0.03776 | 0.01888 | |
Extreme temperature weather per year | 0.1 | 0.01006 | 0.00100 | ||
State subsystem 0.20301 | Biology and ecology 0.07902 | Diversity of species | 0.7 | 0.07902 | 0.05531 |
Environmental quality 0.07410 | Water quality | 0.6 | 0.07410 | 0.04446 | |
Biological productivity 0.06938 | Conversion between nutrient levels | 0.6 | 0.05932 | 0.03559 | |
Total energy conversion | 0.1 | 0.01006 | 0.00100 | ||
Response subsystem 0.38526 | Social response 0.38526 | Proportion of the tertiary industry | 1 | 0.09873 | 0.09873 |
Education level of the population | 0.8 | 0.07902 | 0.06322 | ||
Investment in environmental pollution | 0.7 | 0.06917 | 0.04842 | ||
Planning regulations and policies | 0.7 | 0.06917 | 0.04842 | ||
Degree of public participation | 0.7 | 0.06917 | 0.04842 |