(1) Level 1 early warning: It is estimated that a single disaster will occur with an area of more than 50 million mu or a serious occurrence area of more than 50% of the area of hazardous crop cultivation, which is difficult to control, and may cause great harm to biological disasters: or a particularly significant new transmission of quarantine pests, which poses a great threat to agricultural production.
(2) Level 2 early warning: It is estimated that a single disaster will occur with an area of more than 30 million mu or a serious occurrence area of more than 30% of the area of hazardous crop cultivation, which may cause serious harm: or the new introduction of quarantine pests, which poses a serious threat to agricultural production.
(3) Level 3 early warning: It is expected that the area of a single disaster will be more than 10 million mu or the area of serious occurrence will reach more than 20% of the area planted with hazardous crops, which may cause large economic losses: or a new quarantine pest, a new quarantine pest, a biological disaster that poses a greater threat o agricultural production.
(4) Level 4 early warning: It is expected that a single disaster will occur in an area of more than 5 million mu or a serious occurrence area of more than 10% of the crop planting area, which may cause certain economic losses: or quarantine pests new generation, which poses a certain threat to agricultural production of biological disasters.
The warnings of biological disasters are very profound. How should we humans treat other biological species and treat nature? How do we human society achieve sustainable development? To be sure, in the past, the supremacy of mankind and the arbitrary dominance of the fate of other creatures will be retribution. Human life and development must follow the laws of nature and establish a harmonious society, not only the relationship between people, but also the harmonious relationship between human beings and various creatures and the natural environment.
We should scientifically develop resources and use resources, and transform various natural resources on the basis of objective laws to improve our lives. Timely monitoring in production and life to prevent the occurrence of biological disasters: Establish a sound natural disaster management mechanism in the normal period to solve problems quickly and efficiently after it occurs: actively carry out theoretical research in combination with practice to anticipate and prevent production Biological disasters caused by misconduct in life.
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