Variation Patterns of Absorptive Root Traits and Resource Acquisition Strategies of Representative Tree Species across Different Successional Stages in Subtropical Forests

Authors

  • Hailing Liao

    Department of Forest Science and Biodiversity, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang 43400, Malaysia

    Nanchang Junhan Environmental Protection Consulting Co., Ltd., Nanchang 330224, China

  • Mohd Nazre

    Department of Forest Science and Biodiversity, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang 43400, Malaysia

  • Beilei Yin

    Department of Forest Science and Biodiversity, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang 43400, Malaysia

    College of Forestry Engineering, Guangxi Eco-Engineering Vocational and Technical College, Liuzhou 545003, China

  • Johar Mohamed

    Department of Forest Science and Biodiversity, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang 43400, Malaysia

DOI:

https://doi.org/10.30564/re.v8i3.12727
Received: 10 November 2025 | Revised: 17 December 2025 | Accepted:12 January 2026 | Published Online: 8 May 2026

Abstract

The variation patterns of absorptive root functional traits and the differentiation of resource acquisition strategies among tree species during forest succession represent a critical scientific issue for understanding plant-soil interactions, community dynamics, and ecosystem functioning. This paper systematically reviews the multidimensional variation characteristics of absorptive root traits and their underlying ecological mechanisms in representative tree species across different successional stages in subtropical forests. Research demonstrates that functional traits of absorptive roots form a "root economics spectrum" through coordinated variation across morphological, anatomical, chemical, physiological, and symbiotic dimensions, reflecting the trade-off between resource acquisition efficiency and tissue persistence. Along the successional gradient, pioneer species exhibit an "acquisitive strategy" characterized by high specific root length (15–30 m/g), fine root diameter (0.3–0.6 mm), low tissue density (<0.30 g/cm³), high nitrogen content (15–25 mg·g−1), and short lifespan (<1 year), whereas climax species display a "conservative strategy" featuring low specific root length, coarse root diameter, high tissue density (>0.40 g/cm³), low nitrogen content, and long lifespan. This directional differentiation is driven by environmental factors, including resource availability, competition intensity, and disturbance frequency, while simultaneously regulated by phylogenetic constraints and phenotypic plasticity. Root strategies exert cascading effects on ecosystem productivity, carbon sequestration, and stability through modulation of soil carbon and nitrogen cycling, nutrient availability, and resource acquisition efficiency. Under global change, the compound effects of factors such as climate warming, nitrogen deposition, and biodiversity loss may alter root strategy differentiation patterns and successional trajectories.

Keywords:

Absorptive Root Functional Traits; Forest Succession; Root Economics Spectrum; Resource Acquisition Strategies; Subtropical Forests; Plant-Soil Interactions

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Liao, H., Nazre, M., Yin, B., & Mohamed, J. (2026). Variation Patterns of Absorptive Root Traits and Resource Acquisition Strategies of Representative Tree Species across Different Successional Stages in Subtropical Forests. Research in Ecology, 8(3), 53–84. https://doi.org/10.30564/re.v8i3.12727

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