大国五年丨山海协同陆海联动，绘就万里山河新画卷

Group 1: Economic Development and Regional Coordination - The economic output of the Beijing-Tianjin-Hebei, Yangtze River Delta, and Guangdong-Hong Kong-Macao Greater Bay Area is expected to exceed 40% of the national total by 2024 [1] - The Northeast region's grain production accounted for 25.3% of the national total last year, indicating a strong strategic support for the region [12] - The "West-East Power Transmission" capacity has surpassed 300 million kilowatts, while the computing power of the "East Data West Calculation" eight major hub nodes accounts for approximately 70% of the national total [16] Group 2: Industry and Innovation - The Yangtze River Delta has a research and development expenditure accounting for 3.34% of its GDP, exceeding the national average by nearly 0.7 percentage points [7] - The economic total of the Guangdong-Hong Kong-Macao Greater Bay Area has surpassed 14 trillion yuan, with the "Shenzhen-Hong Kong-Macao" innovation cluster ranking first globally [8] - The Northeast region is focusing on developing modern agriculture and constructing a modern industrial system with distinctive advantages [12] Group 3: Infrastructure and Connectivity - The Beijing-Tianjin-Hebei region has achieved high-speed rail connectivity between all cities, creating a one-hour commuting circle in the core area and a 1.5-hour transportation circle between neighboring cities [4] - The high-speed rail mileage in the Greater Bay Area exceeds 3,000 kilometers, making the one-hour living circle a reality [10] - Over 60% of the national expressway main lines and high-speed rail main corridors pass through the central region, accelerating the construction of major transportation hubs [14]