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Soil science
That science dealing with soils as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils per se; and these properties in relation to the use and management of soils.
Industry: Earth science
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Soil science
pHc
Earth science; Soil science
如果它是在平衡與碳酸鈣,會有解決方案的計算 ph 值。以數位,pHc *是相等於 (性關係-pKc) + p(Ca) + 保克,其中 p(Ca) 和保克分別是摩爾濃度的 Ca 和等效濃度的 (CO3 + HCO3),負面的對數,性關係和 pKc 分別是負對數的 H2CO3 的第二個解離常數和溶解度常數的 CaCO3,兩者更正為離子強度。與測量水的 ph 值一起使用來確定是否 CaCO3 ...
episaturation
Earth science; Soil science
土壤飽和的水中的礦物土壤表面 200 釐米內的一個或多個圖層,也有上限以上 200 釐米深度、 飽和的圖層 (雞的水錶) 下麵的一個或多個不飽和圖層。
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