稻渔立体种养模式

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海鱼游在盐碱滩
Ren Min Ri Bao· 2025-07-31 22:22
Core Insights - The development of aquaculture in Helan County, Ningxia, has transformed saline-alkali land into a productive area for aquatic farming, challenging the perception of Northwest China as a "fishery desert" [1][2] Group 1: Aquaculture Development - Helan County has established the largest facility for South American white shrimp farming in Northwest China, leveraging cold water resources to cultivate high-end species like rainbow trout and sturgeon [1] - The county's aquaculture area spans 58,000 acres, with a total aquatic product output of 65,000 tons and a projected comprehensive output value of over 900 million yuan for 2024, reflecting a year-on-year growth of 16.3% [1] - The average yield of aquatic products per acre in Helan County is 1,120 kg, nearly five times the regional average, making it the leader in Northwest China [1] Group 2: Technological Innovations - The use of artificial seawater by Ningxia Lanwan Ecological Agriculture Co., Ltd. has enabled the successful year-round production of South American white shrimp, with an annual output of approximately 120,000 pounds [2] - Factory-based aquaculture has reduced energy consumption by over 20% compared to traditional pond farming, and resource usage is less than one-tenth of that in conventional methods [2] Group 3: Environmental and Economic Benefits - The integration of aquaculture with rice farming has led to a 60% reduction in pesticide use and a decrease in soil salinity by 3.55 grams per kilogram over three years [3] - Helan County is planning a major project for modern zero-carbon aquaculture, with an investment of 2 billion yuan to develop a 11,000-acre technology park, including breeding facilities and processing areas [3]