过熟林千年一轮回的生活周期分为四个季节。
The thousand-year life cycle of the old forests is divided into four seasons.
而中龄林的碳贮量最多，过熟林碳贮量最少。
The most carbon storage are middle age forests, and the least are excess mature forests.
结果表明：（1）沙棘林中中龄林土壤肥力质量最高，过熟林较低，幼林最低；
It showed that:(1) soil fertility quality of the middle age hippopHae rhamnoides was highest, the overriping was the second and, the sapling was the lowest;
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