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Effects of Torrefied Wood Chips and Vermicompost on Tree Growth and Weed Biomass: Implications for the Sustainable Management of Salt-Affected Reclaimed Lands

Author

Listed:
  • Ji Young An

    (Department of Environment and Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea
    Institute of Agricultural Science, Chungnam National University, Daejeon 34134, Korea)

  • Aung Aung

    (Department of Environment and Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea
    Environmental Conservation Department, Ministry of Natural Resources and Environmental Conservation, Naypyitaw 15011, Myanmar)

  • Jonathan Ogayon Hernandez

    (Department of Environment and Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea
    Department of Forest Biological Sciences, College of Forestry and Natural Resources, University of the Philippines Los Baños, Los Baños 4031, Philippines)

  • Jeong Min Seo

    (Department of Environment and Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea
    Garden Material Research Team, Sejong National Arboretum, Sejong 30106, Korea)

  • Si Ho Han

    (Department of Environment and Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea)

  • Byung Bae Park

    (Department of Environment and Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon 34134, Korea)

Abstract

A harsh environment, slow tree growth, nutrient deficiencies, and competition between trees and weeds can impede forest establishment on reclaimed lands. We investigated the effects of torrefied wood chips (TWC) and vermicompost (VC) soil amendments on the growth of Populus euramericana Guinier, weed biomass, and soil chemical properties on reclaimed land in Saemangeum. The 2.5 Mg ha −1 and 5.0 Mg ha −1 TWC had a similar effect on tree diameter and height growth (i.e., 2.5 = 5.0 > 0 TWC) and tended to have similar, higher effect on the total biomass of P. euramericana than the 0 Mg ha −1 . The 2.5 Mg ha −1 TWC resulted in a significantly larger root biomass than the 5.0 Mg ha −1 TWC. The weed biomass was significantly larger at the 2.7 Mg ha −1 VC (i.e., 730.5–810.5 g m −2 ) than the control (605.1–610.6 g m −2 ), but VC alone was not effective for tree growth and soil amelioration. The TWC had no effect on weed biomass. Thus, the TWC and VC had contrasting effects on tree growth and weed biomass when they were used as soil amendments on salt-affected reclaimed land. VC application may promote weed proliferation, whereas TWC application may potentially increase the growth of P. euramericana and control weed growth on reclaimed lands. Our results enhance the existing knowledge on tree and weed responses to torrefied wood chips and vermicompost amendments for the sustainable management of salt-affected reclaimed lands.

Suggested Citation

  • Ji Young An & Aung Aung & Jonathan Ogayon Hernandez & Jeong Min Seo & Si Ho Han & Byung Bae Park, 2022. "Effects of Torrefied Wood Chips and Vermicompost on Tree Growth and Weed Biomass: Implications for the Sustainable Management of Salt-Affected Reclaimed Lands," Land, MDPI, vol. 11(5), pages 1-11, May.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:5:p:725-:d:813601
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    References listed on IDEAS

    as
    1. Pentananunt, Ranu & Rahman, A.N.M.Mizanur & Bhattacharya, S.C., 1990. "Upgrading of biomass by means of torrefaction," Energy, Elsevier, vol. 15(12), pages 1175-1179.
    2. Huong Thi Thuy Dao & Jeong Min Seo & Jonathan O. Hernandez & Si Ho Han & Woo Bin Youn & Ji Young An & Byung Bae Park, 2020. "Effective Placement Methods of Vermicompost Application in Urban Tree Species: Implications for Sustainable Urban Afforestation," Sustainability, MDPI, vol. 12(14), pages 1-13, July.
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