Typhoon "Meihua" is approaching the east China coast, and the wind and rain are getting bigger and bigger. What impact will the typhoon have on agriculture?

Typhoon will have some adverse effects on agriculture: if there is a typhoon in a certain area, it will directly destroy some local crops after the typhoon comes, and it will change the local field environment after the typhoon comes, so that the pests and diseases in the field will slowly spread. When typhoons come, there are often storms, and these storms will also cause great damage to local crops. For example, the storm will directly crush the roots of crops or damage the leaves, so that the resistance of these crops will drop sharply, and some germs will take the opportunity to invade. When the storm comes, crops are likely to be flooded by rain, so the surface humidity of crops will be relatively high, which is very conducive to the spread of germs.

After the typhoon comes, the rainstorm is likely to cause floods, even landslides, and soil erosion and other disasters. If these natural disasters occur, the local cultivated land will be covered with sand and stones, the soil quality will be greatly reduced, and the growth of crops will be affected to a certain extent for a long time to come.

Typhoon will have some beneficial effects on agriculture: it will not only have adverse effects on agriculture, but also have some beneficial effects. For example, typhoons sometimes pass through some arid areas, so there will be abundant precipitation in this area, which can effectively solve the local drought or improve the local environment. According to relevant data, typhoon precipitation in the southeast coastal areas accounts for about 20%~30% of the total annual precipitation. In other words, it is the typhoon that can alleviate the drought in the Pearl River and Delta.