[Answer] Acidic soil is caused by _____.

Answer: hydrogen ions (H+)

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Acidic soil is caused by _____. Soil acidification is the buildup of hydrogen cations which reduces the soil pH. Chemically this happens when a proton donor gets added to the soil. The donor can be an acid such as nitric acid sulfuric acid or carbonic acid. It can also be a compound such as aluminium sulfate which reacts in the soil to release protons. Acidification also occurs when base cations such as calcium magnesium potassium and sodium are leached from the soil. The pH of a natural soil depends on the mineral composition of the parent material of the soil and the weathering reactions undergone by that parent material. In warm humid environments soil acidification occurs over time as the products of weathering are leached by water moving laterally or downwards through the soil. In dry climates however soil weathering and leaching are less intense and soil pH is often neutral or alkaline. Freshwater becomes acidic when acid inputs surpass the quantity of bases produced in the reservoir through weathering of rocks or by the reduction of acid anions like sulfate and nitrate within the lake. The main reason for freshwater acidification is atmospheric depositions and soil leaching of SOx and NOx. In an acid-sensitive ecosystem which includes slow-weathering bedrock and depleted base … Soil acidification - Wikipedia Soil pH - Wikipedia Soil acidification - Wikipedia Wed Aug 09 2006 14:30:00 GMT-0400 (Eastern Daylight Time) · Acid sulfate soil disturbance is often associated with dredging excavation dewatering activities during canal housing and marina developments. Droughts can also result in acid sulfate soil exposure and acidification. Acid sulfate soils that have not … The causes of soil alkalinity can be natural or man-made: The natural cause is the presence of soil minerals producing sodium carbonate (Na 2 CO 3) and sodium bicarbonate (NaHCO 3) u...

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