Well, its ability to capture and store carbon over centuries is insured by that cold, because when organic matter and litter fall to the ground, it decomposes extremely slowly in its very deep soils.

好吧，它在几个世纪里捕获和储存碳的能力得到了寒冷的保证，因为当有机物和垃圾掉到地上时，它在非常深的土壤中分解得非常缓慢。