Beijing, February 29 (Youth.cn)- Demonstration zone of integrated ecological development of the Yangtze River Delta stretches across Qingpu district (Shanghai), Wujiang district (Jiangsu) and Jiashan district (Zhejiang). Adjacent to Dianshan Lake, the demonstration zone covers 2300 square kilometers. Being the future ecologically friendly integrated development sample, it adheres to principals of creative, coordination, green, openness and common development and set these principals as the requirements of integrated development. To realize collective construction, governance, possession and benefit, it breaks up administrative barrier and focus on integration system creation to build a new system for effective integration development.　　Photo taken at Wangong river embankment in Wujiang district, Suzhou city, Jiangsu province, tourists were rowing along the river, enjoying the fresh air. Photo/ VCG