Characteristics of Ultisols under Different Wildfire History in South Sumatra, Indonesia: II. Dynamics of Chemical Properties

Kadir, Sabaruddin and Ishizuka, Satoshi and Sakurai, Katsutoshi and Tanaka, Sota and Kubota, Shinobu and Hirota, Madoka and Priatna, Satria Jaya and Juairiah, Juairiah (2003) Characteristics of Ultisols under Different Wildfire History in South Sumatra, Indonesia: II. Dynamics of Chemical Properties. Soil Science and Plant Nutrition, Japan, 49 (1). 01-07.

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    Abstract

    In spite of the significant increase in the frequency and extent of fire occurrence in Indonesia recently, little information is available about the immediate, short-term, and long-term effects of fire on soils. To investigate the effects of wildfires on the dynamics of T-C, T-N, available P, pH, exchangeable bases, and cation exchange capacity (CEC) of Ultisols from South Sumatra Indonesia, surface soils of an un-burnt 9-year old Acacia mangium plantation and A. mangium plantation burnt in 1995, 1997, 1998, and 2000 were sampled in triplicate consecutively from December 1998 until December 2000. The values of T-C, T-N, available P, pH, exchangeable bases significantly increased immediately after the fire while the levels of Al saturation and CEC significantly decreased. Soil nutrients were still accumulet 1 year after the fire but by the end of the second year, they were depleted and returned to the pre-fire levels. Although fallowing aggreded the burnt sites, the nutrient levels in the burnt sites were still lower than those in the unburnt sites. In addition, the residual effects of the fire on the soil nutrient levels were still evident 5 years after the fire. Key words: dynamics, immediate effect, lefover effect, Ultisols, wildfire.

    Item Type: Article
    Subjects: S Agriculture > S Agriculture (General)
    Divisions: Faculty of Agriculture
    Depositing User: Dr Sabaruddin Kadir
    Date Deposited: 01 Sep 2012 11:41
    Last Modified: 01 Sep 2012 11:41
    URI: http://eprints.unsri.ac.id/id/eprint/1210

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