首页 > Term: Oa horizon
Oa horizon
A layer occurring in mor humus consisting of well-decomposed organic matter of unrecognizable origin (sapric material).
- 词性： noun
- 行业/领域： 地球科学
- 类别 土壤学
- Company: Soil Science Society of America
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创建者
- Bob Adams
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(Gold) 1649 分数 - 100% positive feedback
