Effects of Vegetation and Water Dynamics on Pyrite (FeS2) Oxidation in Reclaimed Tidal Lowlands, South Sumatra

Armanto, M. Edi and Mat Arshad, Adzemi and Imanudin, Momon Sodik and Wildayana, Elisa (2011) Effects of Vegetation and Water Dynamics on Pyrite (FeS2) Oxidation in Reclaimed Tidal Lowlands, South Sumatra. In: International Fisheries Symposium 2011. University Malaysia Terengganu, Kuala Terengganu, Malaysia, pp. 219-225. ISBN 978-979-98938-5-5

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    Abstract

    The research aimed to analyze effects of vegetation and water dynamics on pyrite (FeS2) oxidation in reclaimed tidal lowlands. The research was carried out in tidal lowland pulau rimau, South Sumatra from February to December 2010. The field observations are done by exploring several transect on land units. The field description refers to Soil Survey Staff (1933). Water and soil sample were taken from selected key areas for laboratory analysis. The vegetation data was collected by making sample plots (squares method) placed on each vegetation type with plot sizes depending on the vegetation type, namely 10 x 10 m for secondary forests and 5 x 5 m for shrubs and grass. The observations of surface water level were done during the river receding with units of m above sea level (m asl). The research results showed that (1) Pyrite formation is largely determined by the availability of natural vegetation as sulfur (S) donors, climate and uncontrolled water balance as well as supporting faunas is the main supporting factors to accelerate the process of formation pyrite, (2) Oxidized pyrite serves to increase soil acidity, becomes tonix to fish ponds and arable soils, plant growth and disturbing the water and soil nutrient balances. Oxidized pyrite is predominantly accelerated by dynamics of river water and disturbed natural vegetation by human activities, and (3) The pyrite oxidation management approach is divided into three main components of technologies, namely water management, land management and commodity management.

    Item Type: Book Section
    Uncontrolled Keywords: Effects, vegetation, water dynamic, pyrite oxidation, tidal lowlands
    Subjects: S Agriculture > S Agriculture (General)
    Divisions: Faculty of Agriculture > Department of Agricultural Socioeconomics
    Depositing User: Nukmal Hakim
    Date Deposited: 24 Aug 2018 23:37
    Last Modified: 24 Aug 2018 23:37
    URI: http://eprints.unsri.ac.id/id/eprint/8031

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