Why did litchi grow in Sichuan in the Tang Dynasty, and now it is only planted in Lingnan? What is the reason?

Litchi in China is mainly distributed in the range of north latitude 18-29 degrees, with the most cultivated in Guangdong, followed by Fujian and Guangxi, and a few cultivated in Sichuan, Yunnan, Guizhou and Taiwan Province provinces. Southeast Asia is also cultivated, and Africa, America and Oceania have introduced records.

In 20 17 years, the planting area of litchi in Guangdong province was 4 1 1 10,000 mu, and the output was 13 1 10,000 tons, accounting for more than 50% of the whole country. The planting area of litchi in Maoming is 6.5438+0.39 million mu, and the output is 528,000 tons, accounting for two-fifths of that in Guangdong and one-quarter of that in China. It is the largest litchi production base in the world.

Extended data:

Litchi trees like high temperature and humidity, light and sunshine. The genetic requirement is that the temperature of flower bud differentiation is relatively low, but the lowest temperature is -2 ~-4℃. Sunny, warm, dry and hot weather, low humidity, continuous rainfall, dry and hot weather or strong north wind are not conducive to flowering and pollination. Unfavorable weather disasters in the flower and fruit period may lead to falling flowers and fruits, and even cause harvest loss.

Litchi has the characteristics of wide cultivation and long life. It has the advantages of less labor, low cost and high income. Its output value plays an important role in fruit production. Fresh litchi and dried litchi sell well at home and abroad.

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