“polar-desert soil”的概念、定义、翻译、参考文献-科学参考

单词	polar-desert soil
释义	polar-desert soil Geology and Earth Sciences Mineral soil without identifiable soil horizons, and with almost no surface humus. It is associated with arid, polar-desert environments where precipitation is less than 130 mm annually, plant cover less than 25%, and thawed, active soil is 20–70 mm deep.
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