Core Insights - The article highlights the successful transformation of saline-alkali land in Helan County, Ningxia, into productive fish farming areas, providing new income opportunities for local residents [3][4][5] - The "Helan Fisher" initiative has become a model for utilizing saline-alkali resources, enhancing local employment and income generation [3][4] Group 1: Economic Impact - Local fishermen, such as Ma Xiaodong, report earnings exceeding 5,000 yuan per month from fish farming, indicating a significant improvement in their livelihoods [1][3] - The introduction of crab farming techniques has increased crab prices from 30-45 yuan per pound to 45-65 yuan per pound, boosting annual income for crab farmers by approximately 25,000 yuan [4] Group 2: Training and Support - Helan County has implemented specialized training programs for villagers, covering essential skills such as fish seed cultivation, water quality management, and disease prevention [3][4] - Over 10 million yuan in entrepreneurial loans have been provided to support local fisheries, facilitating the adoption of new farming techniques [3] Group 3: Ecological and Agricultural Integration - The county has developed integrated farming models like "rice-fish symbiosis" and "fish-vegetable symbiosis," which enhance water utilization and produce high-quality aquatic products [5] - The initiative represents a successful case of ecological restoration and the integration of unique industries in arid regions of Northwest China [5]

Group 1 - Shanzhou District in Shangluo has established the first 4.0 version of fish-vegetable symbiosis demonstration base in the province, achieving a total fishery output value of 567 million yuan, with cold-water fish production reaching 5,091 tons, ranking first in the province [1] - The 4.0 smart aquaculture system combines recirculating aquaculture with soilless hydroponics, achieving ecological balance among animals, plants, and microorganisms, allowing for fish farming without water changes and vegetable cultivation without fertilizers [2][3] - The city has introduced various ecological aquaculture models and advanced technologies, including smart oxygenation and water quality monitoring, to enhance the cold-water fish industry [3] Group 2 - Key projects in Shangluo are driving the development of cold-water fish farming, facility fisheries, and integrated rice-fish farming, with a focus on transforming the industry from small-scale to standardized and branded operations [5] - The Shanyang Cold Water Fish Industry Park is designed for efficient water resource use and is expected to generate multiple income streams for local farmers, including rental income and profit sharing [5][6] - Various interest linkage mechanisms have been established, such as "village collective + leading enterprises + farmers," which have helped over 480 households increase their income through land and capital investment [8]