Longquanyi District is a district of the City of Chengdu, capital of Sichuan, China. Longquan District covers parts of the southeastern suburbs. The population is over half a million. It borders the prefecture-level city of Ziyang to the southeast. Longquanyi has been designated as a high-tech development district, with investment mainly focused in the urban are…Longquanyi District is a district of the City of Chengdu, capital of Sichuan, China. Longquan District covers parts of the southeastern suburbs. The population is over half a million. It borders the prefecture-level city of Ziyang to the southeast. Longquanyi has been designated as a high-tech development district, with investment mainly focused in the urban areas.