PENGARUH PENGELOLAAN AIR TERHADAP FLUKS METANA DAN SIFAT KIMIA TANAH SULFAT MASAM

Abstract

One of the main factors that play an essential role in controlling CH₄ flux in wetlands is water management through the formation of aerobic and anaerobic soil conditions. Rice plants act as an intermediary medium for the CH₄ flux release from the soil to the atmosphere through aerenchyma and trigger CH₄ production. Therefore, this study had designed to study the effect of inundation and rice planting on CH₄ emissions and the chemical properties of acid sulfate soil. The study had arranged by a randomized block design with two factors, i.e., inundation (not flooded/ponding water layer of 0.5 cm and flooded/ ponding water layer of 5 cm) and rice planting (not planted and planted with rice). The CH₄ flux in the flooded treatment was greater than that of the not flooded. Consumption of CH₄ occurs in a not flooded condition which had indicated by a negative flux value. Rice cultivation triggered a large CH₄ flux. Soil pH and soluble Fe were higher in flooded conditions, while soil Eh had lower.