Conservation efforts boost Yangtze River wetland

Bird sanctuaries and businesses benefit from environmental protection project. Chen Liang and Li Yingqing report from Dali, Yunnan province.

The patrol teams at the Shanghai Chongming Dongtan National Nature Reserve need just three essential pieces of equipment for their daily work: a telescope; a pair of binoculars; and a smartphone fitted with an app developed by the reserve.

Every morning, the patrol teams gather in the reserve's office on Chongming Island in the Yangtze River estuary to identify their planned routes and start work.