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October 18, 2025SustainabilityOpen Access

Optimizing Amendment Ratios for Sustainable Recovery of Aeolian Sandy Soils in Coal Mining Subsidence Areas: An Orthogonal Experiment on Medicago sativa

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Authors

LHLijun HaoZHZhenqi HuQBQi Bian

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Overview

Pot experiment reveals optimal amendment ratios for enhancing soil and alfalfa growth in degraded areas, indicating potential for ecological restoration.

Key Points

  • Amendments increased alfalfa fresh weight by up to 107.38%, significantly improving soil fertility parameters.
  • Optimal amendment combination included 10 g·kg−1 weathered coal, 5 g·kg−1 cow manure, and 0.6 g·kg−1 potassium polyacrylate.
  • Structural equation modeling showed amendments enhanced plant growth through improved soil conditions and nutrient uptake.
  • High doses of weathered coal can inhibit growth, indicating careful dosage is essential for effective amendments.

Cite This Study

Hao et al. (2025) studied this question.

synapsesocial.com/papers/68f35bfc73f0a7d050f47f1ehttps://doi.org/10.3390/su17209010
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Also Consider

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  1. 1The use of coal as ameliorant for soils with constraints for plant growth2024
  2. 2Artemisia annua and organomineral amendments improve the microbial function and soil recovery of acidic sulfide mine tailings via metal immobilization2026
  3. 3Synergistic Effects of Coal Gasification Slag-Based Soil Conditioner and Vermicompost on Soil–Microbe–Plant Systems Under Saline–Alkali Stress2026
  4. 4Influence of Composite Amendments on the Characteristics of Sandy Soil2025 · 6 citations
  5. 5Responses of Restored Vegetation Communities, Soil Properties, and Microbial Composition to Different Fertilization Treatments in an Alpine Mining Area2026