YINCHUAN, June 29 (Xinhua) -- Dawukou District in the city of Shizuishan, northwest China's Ningxia Hui Autonomous Region, is known for the saline and alkaline land located at the foot of Helan Mountain that is very hostile to agriculture.
The district, part of an old coal-mining region that closed five years ago, has taken up the challenge of transforming the local economy, embracing green agriculture despite the poor soil and lack of water.
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