单词	spodic
释义	spodic /ˈspɒdɪk / adjective Soil Science Denoting a soil horizon rich in aluminium oxide and organic matter and typically also containing iron oxide, produced by percolating water.The spodic horizon can be destroyed under cultivation, particularly if lime and nitrogen are applied.... It is reasonable to expect the spodic horizon to influence pond hydrology and chemistry. The spodic horizon is characterized by an accumulation of organic material and/or iron and aluminium. Origin 1960s: from Greek spodos 'ashes' + -ic.
随便看	speed hump speedily speediness speed limit speed limiter lettriste lettuce lettuce green lettuce juice lettuce opium lettuce water letty let up Letzebuergesch Letzeburgesch leu leucine leucistic leucite leuco- leucocyte leucocytic leucocytosis leucocytotic leucoderma

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