Abstract
Organic carbon is a potential element to build biomass as well as emitting CO2 to the atmosphere and promotes global warming. This research was aimed to calculate the sequestered Carbon (C) within a 1-m soil depth under selected land use from 6 different sites in Padang city, Indonesia. Disturbed and undisturbed soil samples were taken from several horizons until 100 cm depth at each location. Soil parameters observed were organic carbon (OC), bulk density (BD), and soil texture. The result showed that soil OC content tended to decrease by the depth at all land use types, except under rice field in Kurao-Nanggalo which extremely increased at >65 cm soil depth with the highest carbon stock. The soil organic carbon sequestration from the highest to the lowest according to land use and the location is in the following order mix garden- Kayu Aro > mix garden- Aie Pacah > Rangeland- Parak Laweh >seasonal farming- Teluk Sirih > rice field- Kampuang Jua.
Highlights
Carbon (C) is considered to be one of the elements contained in the greenhouse gases (CO2, CH4, CFCs, HCFCs and HFCs)
The result showed that soil organic carbon (OC) content tended to decrease by the depth at all land use types, except under rice field in Kurao-Nanggalo which extremely increased at >65 cm soil depth with the highest carbon stock
The soil organic carbon sequestration from the highest to the lowest according to land use and the location is in the following order mix garden- Kayu Aro > mix garden- Aie Pacah > Rangeland- Parak Laweh >seasonal farming- Teluk Sirih > rice field- Kampuang Jua
Summary
Carbon (C) is considered to be one of the elements contained in the greenhouse gases (CO2, CH4, CFCs, HCFCs and HFCs). An effort to sequester C becomes one among the answers for climate change control. The C-sequestration is a method that might help to limit emissions and have potential to alleviate the risks of climate change [1,2]. A carbon sink is defined as storing CO2 removed from the atmosphere or captured from emissions in other forms. Carbon is stored within terrestrial ecosystems for about 2110 Pg, almost three times the amount in the atmospheric CO2, with 74% is stored by soils [1]. Soil organic carbon is estimated to be 684–724 Pg of C in the upper 30 cm, 1462–1548 Pg of C in the upper 100 cm soil profile [3]
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