policy consultation report on the development of regional integration in the Yangtze River Delta 智观天下：长三角区域一体化发展资政报告：policy consultation report on the development of regional integration in the Yangtze River Delta Environmental governance effects of regional integration in the Yangtze River delta Annual report on development of sports industry in Yangtze River Delta Research report on the development of trade areas in pearl river delta 并列题名：Research report on the development of trade areas in pearl river delta Research report on the development of trade areas in pearl river delta. research on development of cultural industries in the Yangtze River Delta Research on high-quality development of digital economy in the Yangtze River Delta Data report on economic and social development in the yangtze river delta