（走进中国乡村）重庆“水中人参”游向世界

Core Insights - The article highlights the booming production and export of water caltrop, also known as "water ginseng," from Chongqing, China, particularly in Shizhu Tujia Autonomous County, which is the largest production area globally [1][3]. Industry Overview - Water caltrop is a perennial aquatic herb that requires high-quality water and soil conditions for cultivation. It is currently grown on a large scale in regions such as Zhejiang, Chongqing, Hubei, and Hokkaido, Japan [3]. - The planting area for water caltrop in Shizhu is reported to be 14,000 acres, with an annual production of 14,000 tons. The county has developed 35 types of products, including leisure foods, beverages, and skincare items, which are sold in markets such as South Korea, Japan, and Malaysia [3][4]. Export Developments - In December 2024, Chongqing's Water Fire Soil Food Industry Co., Ltd. signed a $100 million export contract with a Japanese company, which includes $80 million worth of water caltrop products. This marks a significant step in the international trade of this agricultural product [4]. - The first self-operated export of ready-to-eat water caltrop occurred in January 2025, indicating a growing presence in international markets [4]. Market Dynamics - The demand for water caltrop is increasing, particularly in Japan, where it is considered a premium ingredient due to its limited local production. As a result, imports from regions like Chongqing are essential [3]. - The harvesting season lasts approximately four months, with significant orders being placed, and advanced preservation techniques allow the product to be stored for extended periods [3]. Local Economic Impact - Local farmers are engaged in the harvesting process, earning between 7 to 8 RMB per kilogram of fresh water caltrop, with daily earnings potentially reaching 800 RMB for efficient workers [5]. - The establishment of the Shizhu Water Caltrop Industry Association in 2024 aims to further develop the industry, focusing on market expansion, technological updates, and product development [7].