tundra ecosystem 中文意思是什麼
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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 ecosystem
但當苔原長了小樹，土壤也因為夏季較高的溫度而變得乾燥時，平衡可能蕩向另一個方向，因為植物（尤其是木本植物）會固定更多的碳，將其鎖回北極生態系裡。
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