Acidity generation accompanying iron and sulfur transformations during drought simulation of freshwater re-flooded acid sulfate soils
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- 作者：Niloofar Karimian ; n.karimian.11@student.scu.edu.au" class="auth_mail" title="E-mail the corresponding author ; Scott G. Johnston ; Edward D. Burton
- 关键词：Acid sulfate soil ; Wetland ; Iron ; Reduced inorganic sulfur ; Titratable actual acidity
- 刊名：Geoderma
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：285
- 期：Complete
- 页码：117-131
- 全文大小：3410 K
文摘
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The highest rates of acidity generation occurred within the first 20 days of incubation.
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Soil pH decreased rapidly by ~ 2–3 units, while titratable actual acidity increased.
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RIS species decreased over time.
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The reactive pool of Fe (III) minerals (e.g. schwertmannite) increased.
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Sites located at lower elevations contained higher initial RIS and generated more acidity.
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The magnitude of acidity generation was less than the theoretical calculations.