Environmental protection staff take samples to monitor water quality of the lake on Aug 22. [Photo by Wang Zhuangfei/China Daily]

Erhai Lake has gone through substantial protection and water improvement measures, a priority for the Dali Bai autonomous prefecture in Yunnan province since President Xi Jinping's visit in 2015. [Photo by Wang Zhuangfei/China Daily]

Workers cut weeds at a farm in Dali. Some farmers have transferred their land to enterprises running larger-scale farming of cash crops, and become their employees.[Photo by Wang Zhuangfei/China Daily]

[Photo by Wang Zhuangfei/China Daily]

[Photo by Wang Zhuangfei/China Daily]