5年防沙治沙超6500万亩，内蒙古付出了哪些努力？

Group 1 - Inner Mongolia has prioritized sand prevention and control, completing over 100 million mu of the "Three North" project and more than 65 million mu of sand prevention and control in the past five years [1] - The Alxa League, located in the westernmost part of Inner Mongolia, experiences significant sediment flow from the Ulan Buh Desert, with approximately 100 million tons of sediment carried away by the Yellow River annually [1] - The ecological restoration project initiated in 2022 in Alxa has achieved over 84% vegetation coverage in a 11,000 mu area, preventing about 1.5 million tons of sand from entering the Yellow River each year [1] Group 2 - The "Ten Major Conduits" of the Yellow River in Inner Mongolia contribute over 27 million tons of sediment to the river annually, with a significant portion coming from the easily eroded arsenic-bearing rock [3][4] - The construction of 271 sediment retention dams in the "Ten Major Conduits" has effectively reduced sediment flow into the Yellow River, with sediment concentration decreasing from 1550 kg/m³ to 195 kg/m³ [4] - Forest coverage in the West Liugou area has increased from 10.19% to 28.9%, and vegetation coverage has risen from 64.4% to 78.8% [4] Group 3 - The integration of sand prevention and wind/solar energy development is a new approach in Inner Mongolia, exemplified by the "Photovoltaic Great Wall" project spanning 400 kilometers [6] - The "Photovoltaic Great Wall" is expected to generate an annual power output of 200 billion kWh while simultaneously restoring 3 million mu of desert land [6] - The project promotes a sustainable cycle of photovoltaic energy, planting, and livestock farming, enhancing both ecological and economic benefits [6][7] Group 4 - During the "14th Five-Year Plan" period, Inner Mongolia has implemented integrated sand prevention and wind/solar energy projects totaling 27.27 million kilowatts, restoring 238.88 million mu of desert land [7] - The ongoing transformation of previously barren land into productive ecosystems reflects a broader commitment to environmental restoration across Inner Mongolia [7]