HOHHOT, June 9 (Xinhua) -- In recent years, north China's Inner Mongolia Autonomous Region has made all-out efforts to tackle the ecological challenges in the areas along the Yellow River, and has treated land covering a total of 14.89 million mu (about 992,667 hectares).

In deserts of Kubuqi and Ulan Buh, the sand control model with photovoltaic projects has been widely implemented, transforming stretches of sandy terrain into vast "blue seas" brimming with green energy.