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Soil Quality Change after Reclaiming Subsidence Land with Yellow River Sediments

Author

Listed:
  • Linghua Duo

    (Institute of Land Reclamation and Ecological Restoration, China University of Mining and Technology, Beijing 100083, China)

  • Zhenqi Hu

    (Institute of Land Reclamation and Ecological Restoration, China University of Mining and Technology, Beijing 100083, China
    School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China)

Abstract

With continuous population growth and decreasing cultivated land area, China’s food security is greatly threatened. Additionally, coal mining in China is primarily underground mining, which causes land subsidence and destroys existing cultivated land. This effect aggravates the contradiction between a growing population and a shrinking area of cultivated land. The purpose of this study was to introduce a method of filling reclamation with Yellow River sediments to restore farmland and realize the sustainable utilization of cultivated land. The properties of the soil and crop yields in reclaimed farmland were assessed. This study examined farmland reclaimed with Yellow River sediments at an experimental site located in Jining City, Shandong Province, China. Filling reclamation procedures with Yellow River sediments were applied. The reclaimed farmland (RF) and unaltered farmland (CK) were continuously monitored for three years, and the soil was sampled six times. A total of 180 soil samples were collected from RF and CK. The soil properties were measured at three depths: 0–20 cm, 20–50 cm, and 50–80 cm. Crop yields were monitored regularly. The results indicate that filling reclamation with Yellow River sediments is an effective method for restoring farmland. The RF and CK soils were weakly alkaline, non-saline soils. The RF soil was suitable for the growth of local crops. With an increasing number of farming years, both the quality of cultivated land and crop yields have increased. Therefore, filling reclamation with Yellow River sediments is an effective way to realize the sustainable utilization of cultivated land.

Suggested Citation

  • Linghua Duo & Zhenqi Hu, 2018. "Soil Quality Change after Reclaiming Subsidence Land with Yellow River Sediments," Sustainability, MDPI, vol. 10(11), pages 1-13, November.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:11:p:4310-:d:184336
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    References listed on IDEAS

    as
    1. Zhenqi Hu & Linghua Duo & Fang Shao, 2018. "Optimal Thickness of Soil Cover for Reclaiming Subsided Land with Yellow River Sediments," Sustainability, MDPI, vol. 10(11), pages 1-12, October.
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    Cited by:

    1. Chengqiang Li & Junxiao Wang & Liang Ge & Yujie Zhou & Shenglu Zhou, 2022. "Optimization of Sample Construction Based on NDVI for Cultivated Land Quality Prediction," IJERPH, MDPI, vol. 19(13), pages 1-17, June.
    2. Ya Shao & Qinxue Xu & Xi Wei, 2023. "Progress of Mine Land Reclamation and Ecological Restoration Research Based on Bibliometric Analysis," Sustainability, MDPI, vol. 15(13), pages 1-19, July.
    3. Wenjuan Jin & Han Wu & Zhongyi Wei & Chunlan Han & Zhenxing Bian & Xufeng Zhang, 2022. "Are Iron Tailings Suitable for Constructing the Soil Profile Configuration of Reclaimed Farmland? A Soil Quality Evaluation Based on Chronosequences," IJERPH, MDPI, vol. 19(14), pages 1-18, July.
    4. Li, Gensheng & Hu, Zhenqi & Li, Pengyu & Yuan, Dongzhu & Wang, Wenjuan & Yang, Kun, 2021. "The optimal framework and model to balance underground coal mining and cropland protection in Jining, eastern China," Resources Policy, Elsevier, vol. 74(C).
    5. Meijia Xiao & Qingwen Zhang & Liqin Qu & Hafiz Athar Hussain & Yuequn Dong & Li Zheng, 2019. "Spatiotemporal Changes and the Driving Forces of Sloping Farmland Areas in the Sichuan Region," Sustainability, MDPI, vol. 11(3), pages 1-16, February.
    6. Song, Changji & Song, Jingru & Wu, Qiang & Shen, Xiaojun & Hu, Yawei & Hu, Caihong & Li, Wenhao & Wang, Zhenhua, 2023. "Effects of applying river sediment with irrigation water on salinity leaching during wheat-maize rotation in the Yellow River Delta," Agricultural Water Management, Elsevier, vol. 276(C).

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