What is the key to food security?

Seeds and cultivated land are the key to ensure food security.

The key to ensuring food security is seeds and cultivated land. It is necessary to strengthen the protection and utilization of germplasm resources and the breeding and popularization of excellent varieties, and carry out key agricultural core technologies. Improve the standard and quality of high-standard farmland construction, improve irrigation facilities, strengthen the protection of cultivated land, resolutely curb the "non-agricultural" of cultivated land and prevent the "non-grain" of cultivated land.

Building a national food security industrial belt. Stabilize subsidies to grain farmers, moderately increase the minimum purchase price of rice and wheat, and expand the pilot scope of full cost and income insurance. Stabilize the sown area of grain and improve the yield and quality. Take various measures to expand oil production.

General situation of food security in China

As a country with a large grain production and population, China's food security is also affected by this crisis. It is preliminarily found that the total grain production level in China will be reduced by 14%-23% in 2050 compared with 2005 due to the rising temperature, the decrease of agricultural water consumption and the decrease of cultivated land area. The study also pointed out that if the temperature rises at night by 1℃, the rice yield will decrease by 10%.

Furthermore, affected by climate change, rising temperature will aggravate the shortage of water resources in northern China, especially in arid and semi-arid areas in the north. Drought will slow down or even stop the growth of crops, leading to crop failure or crop failure.

At the same time, the rising temperature has a significant impact on the breeding, wintering and migration habits of pests, which has intensified the prevalence of pests and weeds.

Refer to the above content: Baidu Encyclopedia-Food Safety