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Replication Data for: Allometric equations for below-ground biomass of four key woody species in West African savanna-woodlands

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Title Replication Data for: Allometric equations for below-ground biomass of four key woody species in West African savanna-woodlands
 
Identifier https://doi.org/10.34725/DVN/7TVOVY
 
Creator Koala J.,
Sawadogo L
Savadogo P
Aynekulu E
Heiskanen J
Saïd M
 
Publisher World Agroforestry - Research Data Repository
 
Description Accurate estimates of both above-ground biomass (AGB) and below-ground biomass (BGB) are essential for estimating carbon (C) balances at various geographical scales and formulating effective climate change mitigation programs. However, estimating BGB is challenging, particularly for forest ecosystems, so robust allometric equations are needed. To obtain such equations for savanna-woodlands of the West African north sudanian zone, we selected four common native woody species (Anogeissus leiocarpa (DC.) Guill. & Perr., Detarium microcarpum Guill. & Perr., iliostigma thonningii (Schumach.) Milne-Redh. and Vitellaria paradoxa C.F. Gaertn.). At two sites in Burkina Faso, we determined the BGB of 30 trees of each of these species by excavation, and measured various above-ground dimensional variables. The root:shoot ratio varied widely among the species, from 0.1 to 3.4. Depending on the species, allometric equations based on stem basal area at 20 cm height, basal area at breast height and tree height explained 50–95% of the variation in BGB. The best generic equation we obtained, based on basal area at 20 cm, explained 60% of the variation in BGB across the species. Three previously published generic allometric equations underestimated BGB by 8 to 63%. The presented equations should significantly improve the accuracy of BGB estimates in savanna-woodlands and help avoid costly needs to excavate root systems.
 
Subject Agricultural Sciences
Earth and Environmental Sciences
Plant height
Root shoot ratio
Biomass
Climate change
Species-specific equation
Biomass estimation
Root excavation
Burkina Faso
 
Language English
 
Contributor Moreto, Joshua
 
Type Observation Data