Water shield, an ancient tribute, has a history of 1600 years. The Book of Jin records that "water shield bass is admired by Wang". Water shield is a perennial herb in Shuilian City and one of the "three famous dishes" in the south of the Yangtze River (water shield, perch and water shield). Contains protein, sugar, iron, asparagus, leucine and other nutrients, and has the effects of detumescence, detoxification, beauty care and weight loss. Medical experts from Japan, the United States, South Korea and China confirmed the water shield. At present, there are only a few Japanese plants in the world except Shizhu Huangshui, Hangzhou West Lake and Lichuan Fobaoshan, the three major water shield bases in China.
With the development of tourism in Shizhu Huangshui National Forest Park, water shield has been made into various packaged tourism commodities, which are sold well in Southeast Asia, Japan, South Korea, the United States, Singapore and other countries and regions. "Eating delicacies, drinking tea and tasting soup" has become the representative of the new food culture with unique Tujia characteristics. The water shield farm has also become a unique landscape with great ornamental and economic value in Huangshui National Forest Park.
territorial scope
The geographical protection scope of shizhu water shield is Wansheng Village, Yangdong Village, Huangshui Community and Qilong Community in Huangshui Town, Shizhu Tujia Autonomous County, Chongqing; Ba Long Village, Heyuan Village and Tianhe Village in Lengshui Town; Shiyu Village, Tangshuang Village, Zhu Feng Village and Mu Feng Village in Mu Feng Township, accounting for 65,438+in three towns. Geographical coordinates range from 108 23' east to 108 33' north, from 30 07' to 3018'. East to Zhu Feng Village in Mu Feng Township, south to Heyuan Village in Lengshui Town, west to Huangshui Community in Huangshui Town, and north to Yangdong Village in Huangshui Town. The production area is 867 hectares and the annual output is 6.5438+0.3 million tons.
Product quality characteristics
1. Appearance characteristics: the leaves of shizhu water shield are green on the surface and reddish on the back, floating on the water; Glittering and translucent pectin wraps new buds, new leaves and new buds, and the pectin is sticky, and the volume ratio of pectin to wrapped plants is greater than1:1; The taste is tender and smooth, and the fragrance is refreshing. 2. Intrinsic quality: the protein content of water shield in shizhu is 0.4 ~ 0.5g/ 100g, the carbohydrate1.4 ~1.7g100g, and the polysaccharide is 0.35 ~ 0.5g/10g. 3. Quality and safety regulations: the environment of Shizhu water shield production area meets the requirements of NY/T39 1 environmental quality of green food production area, and the product quality meets the requirements of NY/T 1405 standard of aquatic vegetables for green food.