UBC Research Data

Data from: Fine-root exploitation strategies differ in tropical old-growth and logged-over forests in Ghana Addo-Danso, Shalom D.; Prescott, Cindy E.; Adu-Bredu, Stephen; Duah-Gyamfi, Akwasi; Moore, Sam; Guy, Robert D.; Forrester, David I.; Owusu-Afriyie, Kennedy; Marshall, Peter L.; Malhi., Yadvinder; Malhi, Yadvinder

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Abstract
Understanding the changes in root exploitation strategies during post-logging recovery is important for predicting forest productivity and carbon dynamics in tropical forests. We sampled fine (diameter < 2 mm) roots using the soil-core method to quantify fine-root biomass, and architectural and morphological traits to determine root exploitation strategies in an old-growth forest and in a 54-year-old logged-over forest influenced by similar parent material and climate. Seven root traits were considered: four associated with resource exploitation potential or an ‘extensive’ strategy (fine-root biomass, length, surface area and volume); and three traits which reflect exploitation efficiency or an ‘intensive’ strategy (specific root area, specific root length and root tissue density). We found that total fine-root biomass, length, surface area, volume, and fine-root tissue density were higher in the logged-over forest, whereas the old-growth forest had higher total specific root length and specific root surface area than the logged-over forest. The results suggest different root exploitation strategies between the forests. Plants in the old-growth forest invest root biomass more efficiently to maximize soil volume explored, whereas plants in the logged-over forest increase the spatial distribution of roots resulting in the expansion of the rhizosphere.; Usage notes
Fine-root traits in tropical old-growth and logged-over forestsThis data file contains mean fine-root (< 2 mm in diameter) biomass, architectural and morphological traits measured in a tropical old-growth forest, and in a 54-year-old logged-over forest in Ghana.Addo-Danso et al. 2018-Mean fine root biomass-architectural and morphological traits.xlsx

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