'Green wall' helps curb desertification
15:28, March 31, 2010 
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Villagers plant crops in deserted plains in Gaosha town, Yanchi county, Ningxia Hui autonomous region, March 31, 2010. Lines of "green wall" are built along the desert district in Yanchi county, Ningxia Hui autonomous region to defend against desertification, on March 31, 2010. The "green wall" environmentally-friendly project has effectively prevented further expansion of desert, and in combination with manual measures including irrigation, cultivation, etc, the green-plant coverage in Gaosha town area has exceeded 3 million square acres, turning the previous 1.2 million-acre desert area into a green one.(Xinhua Photo)
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