Hanzhong has a unique geographical location, which has the characteristics of plant growth in the north and south, and is rich in plant resources. It is a famous plant gathering place, known as "natural greenhouse", "natural botanical garden", "treasure house of biological resources" and "gene bank of natural species", and it is one of the regions with the best ecological environment in the same latitude of the earth. There are more than 4000 species of higher plants belonging to 235 families 1203 genera. Therefore, although Hanzhong area belongs to the northwest of the motherland, there are southern scenery everywhere. Subtropical plants, such as citrus, tea, tung tree, camellia oleifera, osmanthus fragrans, palm, camphor, fig, oleander, Chinese tallow, loquat, arrowroot, plantain, sugarcane, etc. There are few or none in the Huaihe River basin at the same latitude, but they can be cultivated in the open air in Hanzhong. The mountains and rivers are green and lush all year round. There are 14 species of Davidia involucrata, Cercidiphyllum japonicum and Eucommia ulmoides Oliv. , Liriodendron, Magnolia Officinalis, Fragrant Fruit Tree, Davidia involucrata, Celastrus orbiculatus, Cottonwood, Red Bean Tree, Zanthoxylum bungeanum and Pulsatilla Cynanchum belong to provincial protection. The forestry land area is 6.5438+0.9 million hectares, with a per capita of 0.53 hectares. The forest coverage rate is 48.4%, the standing stock is 810.6 million cubic meters, and the per capita is 22.7 cubic meters. Hanzhong Zhenba is rich in wood and bamboo, covering an area of 496,000 mu, ranking first in the country.

There are more than 600 kinds of high-quality flowers and trees in Hanzhong, among which Hangui and Eclipta prostrata are characteristic trees in Hanzhong. Now the city has developed more than 25,000 mu of flowers and trees, making it the largest flower and seedling base in the northwest.

Hanzhong, with fertile land and numerous ponds, is a famous "Little Jiangnan in Northwest China" and "Land of Fish and Rice" and has the reputation of a granary. Rice and wheat are harvested twice a year. Rice planting has a long history and is the hometown of rare black rice and fragrant rice. In 1980s, the high yield of rice in a large area occupied the leading level in the world. The rice produced is soft, sweet and nutritious, and is exported to northwest, Sichuan, Chongqing, Hubei and other provinces, cities and districts, and is deeply loved by the masses.

Hanzhong is known as the "natural Chinese herbal medicine library". The variety and output of Chinese herbal medicines account for about 70% of the province's total, with pure quality and excellent performance, enjoying high reputation at all times and at home and abroad. Medicinal materials 1235, including plant drugs 1 158, animal drugs 63 and mineral drugs 14. Eucommia ulmoides Oliv Rhizoma Gastrodiae, Radix Aconiti Lateralis Preparata, Polyporus, Cortex Phellodendri, Radix Paeoniae Alba, Radix Angelicae Dahuricae, Radix Scrophulariae, Rhizoma Atractylodis Macrocephalae, Rhizoma Corydalis, Scutellariae Radix, Fructus Jujubae Peel, and Radix Panacis Quinquefolii all rank among the top in the country in terms of yield and texture. Best-selling domestic, some are exported overseas.

Hanzhong is also a famous distribution center for Chinese herbal medicines in history. Before 1930s, the northwest medicinal materials were collected by camel teams in Hanzhong, and the medicinal materials produced in Hanzhong were shipped to Hankou by Hanjiang River, and then re-exported to other provinces and overseas. According to the Records of Nanzheng Industry and Commerce, the medicinal materials transported by Hanshui reached 654.38 billion +0 billion A Jin years. There are mainly angelica, turmeric, linderae, Gentiana macrophylla, winter flowers, codonopsis pilosula, angelica dahurica, gallnut, astragalus leaves, musk, Dendrobium nobile and so on. Medicinal materials have become an important commodity in Hanjiang River water transport.