Plantations of Pinus and Eucalyptus replacing degraded mountain miombo woodlands in Mozambique significantly increase carbon sequestration

摘要: Abstract Total ecosystem carbon (C) stocks in tree biomass (aboveground and belowground), litter layer soil (0–50 cm depth) were quantified mountain miombo woodland 34-year-old first-rotation plantations of Pinus taeda Eucalyptus grandis. The study was performed at three sites (Penhalonga, Rotanda Inhamacari) the western highlands Manica province Mozambique, bordering Zimbabwe. One 30 m × 30 m sampling plot established for each forest type per site. Pre-tested allometric equations used to determine total C within aboveground data from literature on relationship between belowground estimate woody (i.e. coarse roots). Measured taken a previous study. Carbon as baseline sequestration scale, i.e. net production (NEP) plantations, considering 34 years stand age planted forests. woodlands (∼116 Mg ha−1) significantly lower than stands P. (363 Mg ha−1) E. grandis (∼407 Mg ha−1). rate scale 7.24 Mg ha−1 yr−1 8.54 Mg ha−1 stands. NEP dominated by increment (∼80%). This also reflected higher ratio organic compared with forest. plantation species showed similar performance respect NEP. It concluded that or have significant potential increase both replacing degraded province.