Allometric Aboveground Biomass Models for Northern Delhi Ridge Forest

Mayank Tripathi *

Ecophysiology Laboratory, Department of Functional Plant Biology, SSJ University, Almora, Uttarakhand, India.

Hema Joshi

Ecophysiology Laboratory, Department of Functional Plant Biology, SSJ University, Almora, Uttarakhand, India.

*Author to whom correspondence should be addressed.


Bio energy obtained through forest biomass is a promising renewable energy option that provides a more environmentally sustainable alternative to fossil resources by reducing the net flux of greenhouse gases to the atmosphere. India, a developing nation is also in the process of building forest biomass models to study the potential of forests in short and long - term carbon mitigation. Earlier, traditional and destructive sampling were the popular methods for the aforesaid purpose. Recently, non - destructive methods have been adopted applying different allometric equations mostly developed outside India. Thus, there was a need to develop non- destructive allometric aboveground (AGB) models complementing the Indian climate. Also, there was a scarcity of domestic/local AGB models for arid, semi- arid, northern tropical thorn forest of India. The objectives of this study were to develop site-specific and mixed- species allometric models to predict AGB, at the Northern Delhi Ridge Forest (NDRF) using nonlinear mathematical functions. The model has a wide scope and can be applied to adjoining areas as well having similar climatic conditions. Three allometric combinations were tried to fit the aboveground biomass data obtained from the ridge forest. A three- parametric Richard’s model (with predictor variable x=D2H) was best fitted to AGB (R2adj= 0.9463) values for larger trees. Meanwhile, for juvenile plants, a three- parametric Richard function was best fitted (R2adj= 0.9733) when (x = DH) was used as a predictor variable. Cross- validation of model parameters exhibited statistical stability.

Keywords: Forest biomass, renewable energy, greenhouse gases, allometric, aboveground biomass, non-destructive, nonlinear, Northern Delhi Ridge Forest

How to Cite

Tripathi , M., & Joshi , H. (2023). Allometric Aboveground Biomass Models for Northern Delhi Ridge Forest. Asian Journal of Research in Agriculture and Forestry, 9(4), 229–243.


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