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Fine Root Traits of Pinus koraiensis Varied with Soil Cation Exchange Capacity in Natural Forests

Author

Listed:
  • Shuxia Jia

    (College of Forestry, Beihua University, Jilin 132013, China
    Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

  • Xingpeng Li

    (College of Forestry, Beihua University, Jilin 132013, China)

  • Wensheng Sun

    (Jilin Provincial Academy of Forestry Sciences, Changchun 130033, China)

  • Qian Wang

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

  • Hongwen Liu

    (Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

  • Chunyan Zhou

    (Lushuihe Forestry Bureau of Jilin Province, Fusong 134506, China)

  • Weina Zhang

    (Lushuihe Forestry Bureau of Jilin Province, Fusong 134506, China)

  • Feng Li

    (Lushuihe Forestry Bureau of Jilin Province, Fusong 134506, China)

Abstract

Adaptation of fine root plasticity to soil nutrients heterogeneity in natural forest ecosystems has not been well explored. The study aimed to determine seasonal variations of fine root traits in Pinus koraiensis natural forests and explore the relationship between fine root traits and soil properties. Root and soil samples were collected from the coniferous broad-leaved mixed forest (BP), monospecific P. koraiensis forest (MP), and coniferous mixed forest (CP). Soil available phosphorus (P) content for MP was 31.7% and 39.8% lower than for BP and CP. Soil cation exchange capacity (CEC) for MP was lower by 23.5% and 27.2% than for BP and CP, respectively. In July, specific root lengths and root surface areas for BP and CP (mixed forests) were significantly higher than for MP (monospecific forest). A structural equation model showed that CEC had a significant effect on fine root traits. Root diameter, root volume density, and root surface area density were negatively correlated with CEC. Fine root traits plasticity of P. koraiensis are closely related to soil available nutrient contents, CEC, and species composition at the ecosystem level.

Suggested Citation

  • Shuxia Jia & Xingpeng Li & Wensheng Sun & Qian Wang & Hongwen Liu & Chunyan Zhou & Weina Zhang & Feng Li, 2021. "Fine Root Traits of Pinus koraiensis Varied with Soil Cation Exchange Capacity in Natural Forests," Land, MDPI, vol. 10(4), pages 1-11, April.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:4:p:363-:d:528397
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