The invention relates to an
estimation method of
weathering measurement relationship between salt-based ions and
silicon in soil mixed minerals. The
estimation method comprises the following steps: adding weathered soil samples without sundries into a centrifugal
bottle; adding an EDTA-
ammonium acetate solution into the soil samples, and performing uniform stirring, sealing, and vibration in sequence; performing
centrifugal filtration, collecting supernatant, and determining the content of salt-based ions in the supernatant; repeating the steps until the content of the salt-based ions in the collected supernatant is not changed any longer; washing redundant EDTA-
ammonium acetate in soil with
ammonium-free
ethanol; adding an
acid rain leaching solution into the soil samples of which salt bases are eluted, performing uniform stirring, vibration and
centrifugation, performing
filtration, collecting supernatant, and determining pH, the content of
silicon and the content of the salt-based ions; every 6 days, repeating drip washing, calculating the
acid rain leaching quantity of each salt-based
ion, and the
weathering measurement relationship between the salt-based ions and the
silicon. According to the
estimation method disclosed by the invention, a batch (Batch) method is adopted, so that the eluting capacity is powerful, and the eluting effects are good. According to the soil exchangeability salt-based
elution method, the experiment effects and the precision are remarkably improved, and the soil exchangeability salt-based
elution method has wide application prospects.