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首页> 外文期刊>Geomorphology >Multi-fractal characteristics of reconstructed landform and its relationship with soil erosion at a large opencast coal-mine in the loess area of China
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Multi-fractal characteristics of reconstructed landform and its relationship with soil erosion at a large opencast coal-mine in the loess area of China

机译：重建地貌的多分形特征及其与中国黄土地区大型露天煤矿土壤侵蚀的关系

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摘要

Post-mining dumps are typical artificial landforms, with original natural features of soil, topography and vegetation radically altered, and soil and water conservation capacity declined accordingly. In this study, the geomorphic characteristics and soil erosion of reconstructed landforms and their relationships in opencast coal mines are studied. The elevation relief features were described using multi-fractal methods, soil erosion rates were evaluated utilizing the revised universal soil loss equation (RUSLE), and the correlations between geomorphic multi-fractal parameters and soil erosion rate were analyzed within a study area of three soil dumps in the Shanxi Pingshuo Antaibao opencast coal-mine of China. The results show that reconstructed landform in opencast coal mines have multi-fractal characteristics. Generalized dimensions (D-0, D-1, Delta D and D-1/D-0) and singularity spectra (alpha(0), Delta alpha and Delta f) quantify reconstructed geomorphic features. Soil erosion in the sub-areas is slight, indicating that reclamation measures have alleviated soil erosion exacerbated by mining. Geomorphic multi-fractal parameters reflect the differences of soil erosion rate, the increasing trend of D-0, D-1 and alpha(0) are consistent with that of average annual soil loss rate. It is feasible to apply these parameters to reflect soil erosion of reconstructed landforms. This study provides a new perspective for portraying the reconstructed geomorphic features and soil erosion on opencast coal-mine dumps. (C) 2021 Elsevier B.V. All rights reserved.
机译：挖掘后倾倒是典型的人工地貌，土壤，地形和植被的原始自然特征从根本上变化，土壤和水处理能力相应下降。在这项研究中，研究了重建地貌的地貌特征和土壤侵蚀及其在露天煤矿中的关系。使用多分形方法描述了升降特征，利用修订后的通用土壤丧失方程（风格）评估土壤侵蚀率，并且在三种土壤的研究区内分析了地貌多分形参数和土壤侵蚀率之间的相关性山西平朔南宝宝露天煤矿的倾倒。结果表明，Opencast煤矿中的重建地貌具有多分形特征。广义尺寸（D-0，D-1，Delta D和D-1 / D-0）和奇异度谱（α（0），Delta alpha和Delta F）量化重建的地貌特征。子区域的土壤侵蚀是轻微的，表明垦殖措施减轻了通过采矿加剧的土壤侵蚀。地貌多分形参数反映了土壤侵蚀率的差异，D-0，D-1和α（0）的越来越趋于平均年度土壤损失率。应用这些参数是可行的，以反映重建地貌的土壤侵蚀。本研究提供了对露天煤矿倾倒的重建地貌特征和土壤侵蚀的新视角。 （c）2021 elestvier b.v.保留所有权利。

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  • 来源
    《Geomorphology》 |2021年第1期|107859.1-107859.11|共11页
  • 作者

    Shi Wenting; Wang Jinman; Li Xin; Xu Qisheng; Jiang Xiaoyu;

  • 作者单位

    China Univ Geosci Sch Land Sci & Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

    China Univ Geosci Sch Land Sci & Technol 29 Xueyuan Rd Beijing 100083 Peoples R China|Minist Nat Resources Key Lab Land Consolidat & Rehabil Beijing 100035 Peoples R China;

    China Univ Geosci Sch Land Sci & Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

    China Univ Geosci Sch Land Sci & Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

    China Univ Geosci Sch Land Sci & Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Reconstructed landform; Soil erosion; Multi-fractal; RUSLE; Opencast coal mine;

    机译：重建地貌;土壤侵蚀;多分形;风险;露天煤矿;

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