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Ecological Restoration of Coalmine-Degraded Lands: Influence of Plant Species and Revegetation on Soil Development

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Listed:
  • Jinhui Chen

    (High-Tech Research and Development Center, Ministry of Science and Technology, Beijing 100044, China
    School of Public Policy and Management, Tsinghua University, Beijing 100084, China)

  • Izhar Mithal Jiskani

    (State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
    Department of Sustainability and Planning, Aalborg University, 9000 Aalborg, Denmark)

  • Guoqing Li

    (School of Earth Resources, China University of Geosciences, Wuhan 430079, China)

Abstract

This study investigated soil development resulting from revegetation in a coal mining area in northern Henan, China. The effectiveness of six distinct revegetation methods for reclaiming mine-degraded lands was assessed. These methods employed various species such as Ulmus pumila , Amorpha fruticosa , Robinia pseudoacacia , Jerusalem artichoke , and Sea buckthorn. Over a three-year reclamation period, soil development was analyzed to identify the most suitable plant species. Soil samples were collected from different depths, encompassing the topsoil (0–20 cm) and subsoil (20–40 cm) for each method and a control group. Principal component analysis was employed to evaluate the impacts of the revegetation methods on soil development. The findings show that revegetation significantly impacted soil properties, lowering pH, electric conductivity, and density while increasing moisture, organic carbon, nitrogen, phosphorus, and potassium. The effects were more pronounced in the topsoil. Among the six revegetation methods, a mixed plantation of Sea buckthorn and Amorpha fruticosa was the most effective, delivering the highest organic carbon in the topsoil at 3.23% and the subsoil at 1.32%. This study offers insights into successful mine reclamation and the advancement of green and climate-smart mining practices.

Suggested Citation

  • Jinhui Chen & Izhar Mithal Jiskani & Guoqing Li, 2023. "Ecological Restoration of Coalmine-Degraded Lands: Influence of Plant Species and Revegetation on Soil Development," Sustainability, MDPI, vol. 15(18), pages 1-15, September.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:18:p:13772-:d:1240645
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    References listed on IDEAS

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    1. Pratiwi & Budi H. Narendra & Chairil A. Siregar & Maman Turjaman & Asep Hidayat & Henti H. Rachmat & Budi Mulyanto & Suwardi & Iskandar & Rizki Maharani & Yaya Rayadin & Retno Prayudyaningsih & Tri Wi, 2021. "Managing and Reforesting Degraded Post-Mining Landscape in Indonesia: A Review," Land, MDPI, vol. 10(6), pages 1-29, June.
    2. Kang Ma & Yuxiu Zhang & Mengying Ruan & Jing Guo & Tuanyao Chai, 2019. "Land Subsidence in a Coal Mining Area Reduced Soil Fertility and Led to Soil Degradation in Arid and Semi-Arid Regions," IJERPH, MDPI, vol. 16(20), pages 1-14, October.
    3. Li, Baibing & Martin, Elaine B. & Morris, A. Julian, 2002. "On principal component analysis in L1," Computational Statistics & Data Analysis, Elsevier, vol. 40(3), pages 471-474, September.
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