Soil water management systems decreased arsenic dissolution from the soils and accumulated As on the root iron plaque in As-contaminated soils
Part Of
One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment
Pages
282-284
Start Page
282
End Page
284
ISBN (of the container)
9781138001411
ISBN
9781138001411
Date Issued
2014
Author(s)
Abstract
Soil water management systems were developed to mitigate arsenic levels in rice. Pot experiments were conducted to evaluate the effects of water management systems on reducing As dissolution from three As-contaminated soils. The ratio of As/Fe in the soil pore water revealed the liability of soil As and Fe. The conventional treatment significantly reduced dissolution of As and Fe in the soil pore water under paddy (Gd-pd) and upland (Gd-up) soils, but no significant effects in alluvial soil (Er) were observed, due to well drainage and soil active Fe content. Water saturated treatment mitigated As dissolution from both Er and Gd soils and accumulation on the iron plaque of rice root.
Event(s)
5th International Congress on Arsenic in the Environment, As 2014, 11 May 2014 - 16 May 2014
Publisher
CRC Press/Balkema
Type
conference paper