But as the tundra becomes shrubbier and as the soil becomes drier in the summer as a result of higher temperatures, the balance could swing back the other way, because plants, particularly woody ones, will fix more carbon and lock it back into the Arctic
But as the tundra becomes shrubbier and as the soil becomes drier in the summer as a result of higher temperatures, the balance could swing back the other way, because plants, particularly woody ones, will fix more carbon and lock it back into the Arctic
但当苔原长了小树，土壤也因为夏季较高的温度而变得乾燥时，平衡可能盪向另一个方向，因为植物（尤其是木本植物）会固定更多的碳，将其锁回北极生态系里。