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Comparison of Chemical Properties of Peats under Different Land Uses in South Sumatra, Indonesia

Armanto M. Edi

Journal of Ecological Engineering

2019

Vol. 20, nr 5

184--192

The research aimed at comparing the chemical properties of peats under different land uses in peats dome of the catchment area of the Sibumbung River and the Komering River in Pedamaran Sub-Districts, OKI South Sumatra, Indonesia. The research was conducted in January 2019 and used a Randomized Complete Block Design with two blocks and five natural treatments namely swamp grass, bush swamp, peat forest, oil palm, and intercropping between oil palm and pineapple. Most of the chemical properties of peats at the depth of 30-50 cm showed no changes due to the effects of land uses and drainage; however, there were significant differences with the peat depth of 5-15 cm. Decreasing organic C, exchangeable Al, Al saturation and soluble Fe on the cultivated peats were significantly different compared with the uncultivated peats. An increase in the available P, K, pH, CEC and base saturation on the cultivated peats were found and differed significantly on test level 5% compared with the uncultivated peats due to the application of ameliorant materials. The total N and C/N values were not significantly different. Most of the chemical properties of peats were decreased by the depth of peats. Soil ameliorant materials would change the buffering system of the peats to neutralize soil acidity and the pH increase.

Comparison of Collembola (Springtails) communities in meadows and forests on drained peat soils of different origin

Kaczmarek M.

Polish Journal of Ecology

2001

Vol. 49, nr 4

431-437

The results of the study carried out in areas that differed in soil moisture in two years differing in the amount of precipitation provide evidence that drained peatlands on segde-moss peat managed as meadows enhance a higher stabilization of Collembola communities than the adjacent areas subjected to spontaneous forest succession: changes in numbers are small, biomass is higher than in the forest, and the similarity of species composition from year to year is higher than in the forest. The dominance structure, the same species being dominant, is almost identical. In the alder peat, the most suitable conditions for the development of Collembola communities are created in the area subjected to spontaneous forest succession after drainage, rather than in drained meadows. Collembola community in the forest was characterized by a higher abundance and biomass and a higher index of species diversity than in the meadow, and by a higher species similarity from year to year.