Published 2025 | Version v2

National Scale Above-Ground Biomass Density (AGBD) Map in Nepal's Forests at 30m Resolution (Circa 2015)

  • 1. ROR icon New Mexico State University
  • 2. Kathmnadu Forestry College
  • 3. Centre National de la Recherche Scientifique

Description

  • AGBD mapping in Nepal's forests circa 2015 at 30m resolution using Landsat-8, ALOS-PALSAR, and field data within Google Earth Engine. 
  • Out of 1,010 field-measured AGBD samples, 965 AGBD plots were used to train and validate the machine learning model.
  • The CART model achieved 88% accuracy (R² = 0.88), with an RMSE of 40.93 Mg ha⁻¹ and an MAE of 27.24 Mg ha⁻¹.
  • Nepal's total Forest AGBD is estimated at 1.335 × 1010 Mg (13.35 Pg), with a mean of 173.13 Mg ha⁻¹ and a standard deviation of 112.48 Mg ha⁻¹.
  • There is high uncertainty in mountainous areas and low uncertainty in dense forests, which supports conservation efforts. The study promotes REDD+ initiatives and sustainable forest management with open-access AGBD data.

Files

NepalForestAGBD-Circa2015.tif

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