智慧护鸟织密全天候全方位守护网络 科技为候鸟迁徙和越冬保驾护航

Core Viewpoint - Hunan province is a significant migratory and wintering area for birds in China, utilizing various technological methods to protect migratory birds and their habitats [1] Group 1: Bird Migration and Habitat - Hengyang, known as "Yan City," serves as a rest stop for migratory birds, highlighting the importance of food sources like fish and shrimp for these birds [3][5] - The Xuanzhou National Wetland Park in Hengshan features a divided river system that historically supported fish migration and breeding [7] Group 2: Environmental Challenges and Solutions - Development in the last century, including the construction of hydropower stations and locks, obstructed fish migration routes, leading to a decline in fish populations [9] - A newly excavated fish migration channel, nearly 1 kilometer long, was initially ineffective in attracting fish, but now facilitates the migration of over 100,000 fish annually [11] Group 3: Technological Innovations - The installation of underwater sound wave devices guides fish to the newly constructed fishway, allowing them to reach spawning grounds [11] - A comprehensive monitoring system, including drones and IoT sensors, has been established to ensure continuous protection of the wetland ecosystem [11] Group 4: Biodiversity Improvement - The number of fish species in the wetland park has increased from 42 to 60, while bird species have risen from 85 to 165, including five species of national first-class protected birds and 28 second-class protected birds [13] - In Yiyang, the Nandongting Lake Provincial Nature Reserve has implemented a smart monitoring platform that integrates remote sensing and video surveillance for real-time inspections of the protected area [15]