Ad
related to: acid sulphate soil in malaysia priceamazon.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
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]
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.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Acid_sulfate_soils&oldid=125368894"
This sulfate mineral is formed in ore deposits by the oxidation of iron sulfides. Jarosite is often produced as a byproduct during the purification and refining of zinc and is also commonly associated with acid mine drainage and acid sulfate soil environments.
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.
The attack arises from soils containing SO 2− 4 ions, such as MgSO 4 or Na 2 SO 4 soluble and hygroscopic salts. The tricalcium aluminate (C 3 A) hydrates first interact with sulfate ions to form ettringite (AFt). Ettringite crystallizes into small acicular needles slowly growing in the concrete pores.
(Reuters) -Four men were convicted in Spain on Sunday in connection with the homophobic murder of a 24-year-old nursing assistant that sparked protests in cities across Spain and abroad.
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