title: Comparison of the carbon-sequestering abilities of pineapple leaf residue chars produced by controlled combustion and by field burning.
abstract: This study was undertaken to compare the chemical properties and yields of pineapple leaf residue (PLR) char produced by field burning (CF) with that produced by a partial combustion of air-dried PLR at 340 °C for 3 h in a furnace (CL). Higher total C, lignin content, and yield from CL as well as the presence of aromatic compounds in the Fourier Transform Infrared spectra of the char produced from CL suggest that the CL process was better in sequestering C than was the CF process. Although the C/N ratio of char produced from CL was low indicating a high N content of the char, the C in the char produced from CL was dominated by lignin suggesting that the decomposition of char produced from CL would be slow. To sequester C by char application, the PLR should be combusted in a controlled process rather than by burning in the field.
authors.affiliation: Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: L Y
authors.initials: LY
authors.lastname: Leng
authors.forename: M H A
authors.initials: MH
authors.lastname: Husni
authors.forename: A W
authors.initials: AW
authors.lastname: Samsuri
mesh_terms: D031230:Ananas / Q000737:chemistry*; D001709:Biotechnology / Q000379:methods*; D002244:Carbon / Q000032:analysis; D002245:Carbon Dioxide / Q000032:analysis; D002248:Carbon Monoxide / Q000032:analysis; D057965:Carbon Sequestration; D002482:Cellulose / Q000032:analysis; D002606:Charcoal / Q000737:chemistry*; D004553:Electric Conductivity; D005390:Fires; D006863:Hydrogen-Ion Concentration; D008031:Lignin / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D018515:Plant Leaves / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature
chemical_list: C540010:biochar; D002245:Carbon Dioxide; D002606:Charcoal; D002244:Carbon; D002248:Carbon Monoxide; D002482:Cellulose; D008031:Lignin; D009584:Nitrogen; D010100:Oxygen