Traditional Culture Encyclopedia - Weather forecast - Why does climate warming lead to reduced grain production?
Why does climate warming lead to reduced grain production?
In addition, climate warming will not only aggravate land desertification, but also multiply agricultural pests and diseases, so the harm to crops will also increase.
Climate warming will also lead to rising sea level, backward flow of seawater and inland expansion of saline soil, which will make the salinization and swamping of crop growing areas more serious, reduce the planting area in coastal areas and reduce the grain yield.
As for the impact of increasing carbon dioxide on increasing food production, it is extremely limited. It is true that carbon dioxide is an important raw material for green plants to carry out photosynthesis and make organic matter, but it is not the only raw material. Although carbon dioxide has a positive effect on plant growth, it is often affected by sunlight, moisture and nutrients, which greatly reduces this positive effect. Generally speaking, the content of carbon dioxide in the atmosphere has basically reached the "on-demand" level of plant photosynthesis, and it is empty to increase it again.
- Previous article:Broadcast manuscripts of campus radio stations
- Next article:What promotion method of Taobao will be better?
- Related articles
- Is the high temperature and drought caused by cyclone or anticyclone? Why?
- Seeking the history of table tennis is urgent. (About 500 words)
- General situation of Outang in Dingyuan Outang Martyrs Cemetery
- There was a barbecue by the Yellow River, and three pupils drowned unfortunately. What happened later?
- With persistence as the topic, the composition of senior three is 600 words.
- What clothes is suitable for Changsha weather tomorrow?
- How is general weakness in summer?
- home page
- What weather is like clouds and lightning?
- When will Taizhou be sunny in the future?