Scientists planted 40,000 native seedlings in Yosemite's damaged Tuolumne Meadows; three years later, soil organic matter was improving, but the meadow was still losing more carbon than it gained

• Native sedges growing in a wet meadow (Representational photo)Scientists who planted 40,000 native sedge seedling to restore the damaged Tuolumne Meadows in California's Yosemite National Park, have found early signs of improvement after.
• The results, however, also show that restoring the meadow's soil and its ability to store carbon could take several decades.
• Three years after the planting, while the soil organic matter increased, the meadow continued to lose more carbon than it gained.