N deposition can acidify the soil and leaching the exchangeable base cations.
氮沉降能引起土壤酸化，同时造成土壤盐基离子淋失。
It occurs as an exchangeable base in the clay mineral and organic fractions of soils.
钙是以交换性盐基在粘土矿物及土壤的有机部分出现的。
It occurs as an exchangeable base in the clay mineral and organic fractions of soils.
钙是以交换性盐基在粘土矿物及土壤的有机部分出现的。
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