A worker harvests dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

A worker harvests dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

Workers harvest dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

A worker harvests dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

Workers harvest dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

Workers harvest dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

A worker harvests dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]

A worker harvests dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015. [Photo/Xinhua]

Workers harvest dried salt in Yanchi village of Gaotai county, Northwest China’s Gansu province, Aug 24, 2015.[Photo/Xinhua]