RT Journal Article
T1 A Complete Assessment of Carbon Stocks in Above and Belowground Biomass Components of a Hybrid Eucalyptus Plantation in Southern Brazil
A1 Viera, Márcio
A1 Rodríguez Soalleiro, Roque
K1 Carbon fixation
K1 Eucalyptus stands
K1 Soil carbon
K1 Biomass carbon
K1 Allometric equations
AB Hybrid eucalypt clones are grown for fiber production worldwide and to provide anecosystem service that can store atmospheric carbon at a very fast rate. This study assessed the carbonstocks in the soil and various tree fractions in a 10-year-old plantation of Eucalyptus urophylla S.T. Blake× Eucalyptus globulus Labill. in Southern Brazil. Four experimental plots were established, and aninventory of Eucalyptus trees was conducted by considering five diametric classes. Three trees in eachdiametric class were harvested for biomass and carbon quantification. The understory biomass ofnative trees was quantified in five subplots and the litter was quantified in 16 subplots. Organic C wasquantified in the soil (SOC) and roots (diameter ≤ 0.5 cm) to a depth of 100 cm. The C concentrationin the different biomass fractions of the eucalyptus trees were 55.7% (±0.6), 50.4% (±0.4), 49.5% (±0.6)and 45.4 % (±0.9) for leaves, branches, wood and bark, respectively. The C concentrations in theunderstory fractions were 51.4% (±1.0) for the canopy and 50.0% (±0.9) for the stem. The carbonconcentration in the fine root biomass was 45.7% (±1.4). Soil C concentrations were 1.23% (±0.32),0.97% (±0.10), 0.45% (±0.14), and 0.24% (±0.10) for depths of 0–25, 25–50, 50–75, and 75–100 cm. Cwas allocated in: (a) the trees (aboveground fraction = 118.45 Mg ha−1 and belowground fraction= 30.06 Mg ha−1), (b) the understory = 1.44 Mg ha−1, (c) the litter = 8.34 Mg ha−1, and (d) the soil(without roots) = 99.7 Mg ha−1. The share of total C stock (a + b + c + d = 258.0 Mg ha−1) was similarin the aboveground (49.7%) and belowground (50.3%) fractions, thus indicating a very high rateof C sequestration in the biomass. Eucalyptus plantations in Brazil are fast growing (for this study= 36.7 m3 ha−1 year−1) and contribute to intense carbon sequestration in above and belowgroundbiomass (14.8 Mg ha−1 year−1).
PB MDPI
YR 2019
FD 2019
LK http://hdl.handle.net/10347/22317
UL http://hdl.handle.net/10347/22317
LA eng
NO Viera, M., & Rodríguez-Soalleiro, R. (2019). A Complete Assessment of Carbon Stocks in Above and Belowground Biomass Components of a Hybrid Eucalyptus Plantation in Southern Brazil. Forests, 10(7), 536.
NO The National Council of Technological and Scientific Development (CNPq—Brazil) awarded the first author with a research grant (Award Number 200589/2014-8) for a one-year stay at the USC in Spain
DS Minerva
RD 23 abr 2026