Estimating biomass production and carbon sequestration of poplar-based agroforestry systems in India

S. B. Chavan (), R. S. Dhillon (), Ajit (), R. H. Rizvi (), Chhavi Sirohi (), A. K. Handa (), K. K. Bharadwaj (), Vishal Johar (), Tarun Kumar (), Pradyuman Singh (), Vijay Daneva () and Sushil Kumari ()
Additional contact information
S. B. Chavan: CCS Haryana Agricultural University
R. S. Dhillon: CCS Haryana Agricultural University
Ajit: ICAR-Indian Agricultural Statistics Research Institute
R. H. Rizvi: RRS, ICAR-Central Soil Salinity Research Institute
Chhavi Sirohi: CCS Haryana Agricultural University
A. K. Handa: ICAR-Central Agroforestry Research Institute
K. K. Bharadwaj: CCS Haryana Agricultural University
Vishal Johar: CCS Haryana Agricultural University
Tarun Kumar: CCS Haryana Agricultural University
Pradyuman Singh: CCS Haryana Agricultural University
Vijay Daneva: CCS Haryana Agricultural University
Sushil Kumari: CCS Haryana Agricultural University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2022, vol. 24, issue 12, No 3, 13493-13521

Abstract: Abstract This study was conducted on 79 harvested poplar trees of eight-years-old planted at five spacing geometries (5 × 4 m, 10 × 2 m, 18 × 2 × 2 m, North–South and East–West boundary) to construct component-wise dry biomass (above + below ground) equations for estimating biomass & carbon sequestered. The complete data were randomly divided into two mutually exclusive and independent sets viz estimation-set (80%) to fit the model and validation-set (20%) to ascertain accuracy of the fitted model. DBH was found to be the most appropriate independent variate to construct best-fit biomass equations with growth attributes. Among various attempted functions (linear, allometric, logistic, Gompertz, Chapman and exponential), allometric function i.e., Total Biomass = 0.2575*DBH(2.191) (R2Adj = 0.97, RMS = 925.71 and AIC = 427.87) was found to be the best-fit. The total dry biomass production of poplar varied from 69.90 to 207.98 Mg ha−1 in aboveground and 13.46 to 36.69 Mg ha−1 in belowground in five planting geometries. Total carbon storage (above + below ground) under various spacings viz 5 × 4 m, 10 × 2 m, 18 × 2 × 2 m, North–South and East–West boundary poplar were 112.48, 101.80, 84.87, 77.28 and 38.84 Mg C ha−1, respectively. The carbon sequestration rate was observed to be higher in 5 × 4 m (14.09 Mg C ha−1 yr−1) closely followed by 10 × 2 m (12.61 Mg C ha−1 yr−1), 18 × 2 × 2 m (10.50 Mg C ha−1 yr−1),E–West (9.56 Mg C ha−1 yr−1) and North–South plantation (4.80 Mg C ha−1 yr−1). Keeping in view, regionally derived allometric equations contribute to limiting the uncertainty in the estimation of biomass and carbon sequestration, which may be helpful to monitoring, reporting and verification (MRV) needs in carbon management policies.

Keywords: Agroforestry; Biomass models; Validation; Carbon accounting and poplar (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10668-021-01996-8

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