On the one hand, ginseng cultivation in Huanren has a history of 160 years and is distributed all over the county. Ginseng is a negative plant, which requires strict light, while the total solar radiation in Huanren area is 125.9keal/cm? .

On the other hand, the frost-free period of Huanren is 135 days, with the first frost usually in mid-September and the last frost usually in early May, which can meet the growth time of ginseng in the whole growth cycle. The average annual precipitation is 870.4mm, and the average annual precipitation days are 130 ~ 160 days. The rainfall from April to September accounts for 86.7% of the whole year, and it is mostly concentrated in July and August, which is higher than other areas. July and August are the fastest growing period of ginseng.

Huanren Manchu Autonomous County is located in the east of Liaoning, in the middle and lower reaches of Hunjiang River, in the best latitude range of ginseng distribution, and belongs to the middle temperate zone. 20 10 years later, Huanren was awarded the title of "Hometown of Wild Ginseng in China" by the Ministry of Forestry.

Brief introduction of Huanren natural resources:

1, mountain forest resources

The forest area is 4.38 million mu, the total forest volume is 28.4 million cubic meters, and the forest coverage rate is 79.4%. 7 state-owned forest farms. There are 64 peaks in Huanren, among which Foding Mountain is the most famous, with an altitude of 1 367.78 m, which is the highest peak in Liaoning, Huajingzi Mountain 1 336. 1 m, Wunv Mountain 804 m, and the lowest altitude in the county 1.08 m.

There are nearly 208/kloc-0 species of animals living in Huanren's 3547 square kilometers, including 50 species of mammals, 205 species of birds, 36 species of fish, 0/3 species of amphibians, 0/4 species of reptiles and 2048 species of insects. At the same time, there are more than 2000 kinds of plants, including 469 genera of wild economic plants 12 1 family, 1 193 species.

2. Water resources

The water area of the county is 398,000 mu, and the total water resources are 6.5438+0.56357 million cubic meters, including 6.5438+0.2340 million cubic meters of surface water, 3.2957 million cubic meters of groundwater, 7.0479 million cubic meters of available water and 7.97./kloc-0.30 million cubic meters of actually utilized water. There are 70 rivers in this county.

Reference to the above content: Baidu Encyclopedia-the hometown of wild ginseng in China