Mother trees colonize their kin with bigger mycorrhizal networks. 母树通过更大的菌根网络来覆盖住自己孩子们所在的区域。 They send them more carbon below ground. 在地下，它们给孩子们会送去更多的碳。 They even reduce their own root competition to
REMARKS BY THE PRESIDENTAND THE VICE PRESIDENTON THE AMERICAN RECOVERY AND REINVESTMENT ACT U.S. Department of TransportationWashington, D.C. 11:52 A.M. EDT THE VICE PRESIDENT: Thank you, Mr. Secretar
