Returning America's Forests to Their 'Natural' Roots

摘要: As scores of projects to save North American forests get under way, new data on how those looked centuries ago are fueling a debate what ecologists should aim for when restoring ailing ecosystems. In trying reconstruct ecosystems ago, researchers hope offer handle much change is natural and caused by human activity. Further dogging the issue whether forest its pre-European settlement state even legitimate goal, considering that Native Americans were shaping land long before European settlers arrived.