Abstract
Global warming and greenhouse gas emissions (GHGs) became a hot issue in the world today. An increased concentration of carbon in the atmosphere becomes one of the serious problems that can affect life on Earth. Peatlands pointed out as one of the sources of GHG emissions. Drainage of peatlands cause decreased water level so that the decomposition process is faster on a layer above the groundwater table, thus affecting the chemical characteristics of peat. In addition to affecting the ground water level, drainage also leads to a decrease in surface height peat soil (subsidence). Given the magnitude of the role of drainage and land use types in affecting carbon stocks and emissions of CO2 on peat soil, this study is to measure carbon stocks and emissions of CO2 on peat soil in forests and shrubs that have been drained. CO2 emissions increase with the closer spacing of the drainage channel that is at a distance of 50 m to 500 m of drainage channels. Meanwhile, at a distance of 5 m and 10 m of the drainage channel can not be concluded because of the condition of ground water that is stagnant at the time of sampling gas, so be very low CO2 emissions. CO2 emissions on the use of forest land are higher than the shrub land.
Highlights
Demands the fulfillment of the food and the industry in order to improve people's welfare encourages the use of peatlands for agriculture and industry with the opening of the peatland
Drainage of peatlands cause decreased water level so that the decomposition process is faster on a layer above the groundwater table, affecting the chemical characteristics of peat
On peat soil scrub decreased water level was significant transects III, and IV, at a distance of 5, 10, and 50 m of drainage channels. It shows that the transect II, III, and IV high hydraulic conductivity so that the manufacture of drainage channels greatly affects the depth of the ground water level
Summary
Demands the fulfillment of the food and the industry in order to improve people's welfare encourages the use of peatlands for agriculture and industry with the opening of the peatland. Drainage of peatlands cause decreased water level so that the decomposition process is faster on a layer above the groundwater table, affecting the chemical characteristics of peat. Peat is the main temperature controller on the rate of decomposition of peat, and will be very dominant role when interacting with O2 (Chapman et al 1996) Temperature and humidity both air and peat soils in the tropics are strongly influenced by the type and density of vegetation cover. Given the magnitude of the role of drainage and land use types in affecting carbon stocks and emissions of CO2 on peat soil, this study is to measure carbon stocks and emissions of CO2 on peat soil in forests and shrubs that have been drained
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