國軍轉任◆英文題庫下載題庫

　　Most trees can migrate only as fast as their seeds disperse - and if current warming trends hold, the climate in this century will change 10 times faster than many tree species can move, 6 one estimate. Rhode Island is already 7 more heat and drought, shifting precipitation and the intensification of plagues such as the red pine scale, a nearly invisible insect carried by wind that can kill a tree in just a few years. The dark synergy of 8 extreme weather and emboldened pests could 9 vast stretches of woodland. So foresters in Rhode Island and elsewhere have 10 ambitious experiments to test how people can help forests adapt, something that might take decades to occur naturally.