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The term ‘acid sulfate soils’ (ASS) was coined by the Working Party on Nomenclature and Methods for the first International Symposium on Acid Sulfate Soils (1972, Wageningen) to mean soils that contain, or have the potential to produce, sulfuric acid in quantities that cause significant and long-lasting changes in key soil properties. [22]
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
The ecoregion covers an area of 3,600 square kilometers (1,400 sq mi) on both the eastern and western sides of the peninsula. The peat swamp forests have formed over hundreds of years, as sediment and organic debris deposited by rivers are trapped behind mangroves, gradually building up a layer of waterlogged, acidic, nutrient-poor soil.
Global variation in soil pH. Red = acidic soil. Yellow = neutral soil. Blue = alkaline soil. Black = no data. Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics.
Some coastal lowlands have fluvisols with sulphidic material within the profile (a thionic horizon). These acid sulfate soils have severe constraints for agricultural use as low pH-values, toxic aluminium levels and high concentrations of salts. Tidal lands that are strongly saline are best kept under mangroves or some other salt-vegetation.
A mysterious illness, which the Africa Centers for Disease Control and Prevention is calling "disease X," has killed at least 31 people — mostly children — in the remote Panzi region of the ...
Adobe expects foreign exchange volatility and the company's shift towards subscriptions to cut into its fiscal 2025 revenue by about $200 million. The company is making significant investments in ...
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