Pengaruh waktu dan titik pengukuran terhadap emisi Karbondioksida dan Metan di lahan gambut kebun Kelapa Sawit PT Perkebunan Nusantara IV, Labuhan Batu, Sumatera Utara
MetadataShow full item record
The conversion of forest to estate plantation takes into account by the world because of the high potential of greenhouse gases emission such as CO2 and CH4. This is due to the opening of oil palm plantation widely and the developed of plant forest which is planned by the Indonesian Government in both mineral soil and peatland. The objectives of this research were to (1) measure and examine the flux and emission of green house gases (CO2 and CH4) at the certain ages of the oil palm (TBM, TM 6, TM 12, and TM 18), (2) examine the effect of the distance from drainage and time measurement on greenhouse emission in oil palm plantation at the certain ages (TBM, TM 6, TM 12, and TM 18). This research was conducted at the peatland of oil palm plantation in Panai Jaya and Meranti Paham, PT Perkebunan Nusantara IV, Labuhan Batu, North Sumatera in 2008-2009. The measurement was conducted in the morning and afternoon which was begun by choosing the location based on the distance of 50 m, 100 m, and 150 m from drainage ditch. The gases were sampled under the auspices of the plant, the and of the plant canopy, and the sidelines between plant by using the closed chamber and analyzed by using Micro GC CP 4900 for each plot. Randomized complete block design was applied to identify the effect on emissions. The highest emission of CO2 occured in TM 18 (45.45 tons/ha/year) and then TM 12 (43 tons/ha/year), TBM (41.79 tons/ha/year) and the lowest was in TM 6 (38.52 tons/ha/year). The emission of CH4 decreased with increament of the depth of water table. The highest emission of CH4 was 7.70 tons/ha/year (TM 12) and followed 5.72 tons/ha/year (TBM), 5.59 tons/ha/year (TM 6) and lowest was 5.50 tons/ha/year (TM 18). In general, emission of CO2 increased with further distance from drainage ditch, but there was found that CO2 emission was not affected by the distance of drainage ditch. In line with the effect of time, emission of CO2 in the afternoon is higher than in the morning because of the increasing of temperature, but it was found the opposite which CO2 was not affected by temperature. Analysis of variance showed that CO2 emission was not significantly affected by the distance from drainage ditch and time measurement.