What are the main walnut-producing regions? A rundown of the latest production areas

Walnut trees love sunlight, tolerate cold, and have strong drought and disease resistance. They adapt to a wide range of soils and prefer fertile, moist sandy loam. They like water, nutrients and sun, yet are not demanding about water and fertilizer. From leaf fall until bud break, pruning should be avoided, as it easily causes sap bleeding. They are suitable for growing in most soils. They prefer fertile, moist sandy loam and are commonly found in places with deep soil layers along the sides of mountain valleys.

Walnuts are produced in North China, Northwest China, Southwest China, Central China, South China and East China, and southern Xinjiang. They are distributed across Central Asia, West Asia, South Asia and Europe. They grow on mountain slopes and hilly areas at elevations of 400-1800 m, and are commonly cultivated in the plains and hilly areas of China.

Walnuts are widely distributed in China, found in 21 provinces (regions and municipalities) including Liaoning, Tianjin, Beijing, Hebei, Shandong, Shanxi, Shaanxi, Ningxia, Qinghai, Gansu, Xinjiang, Henan, Anhui, Jiangsu, Hubei, Hunan, Guangxi, Sichuan, Guizhou, Yunnan and Tibet. Inner Mongolia, Zhejiang and Fujian and other provinces (regions) have a small amount of introduced or cultivated plants. The main production areas are in Yunnan, Shaanxi, Shanxi, Sichuan, Hebei, Gansu, Xinjiang and other provinces (regions). Walnut is one of the most widely distributed tree species among China's economic tree species.

The horizontal distribution range of walnuts in China: from Mengla County, Yunnan at 21°08’32" N to Bole County, Xinjiang at 44°54’ N, spanning 23°25’ of latitude; from Tashkurgan, Xinjiang at 75°15’ E in the west to 124 E in the east.