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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (6): 165-175.DOI: 10.7522/j.issn.1000-694X.2022.00049

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Distribution pattern and influencing factors of ground arthropods in coalmines restoration area of Qilian Mountain Nature Reserve, China

Weicheng Luo1(), Wenzhi Zhao1(), Jiliang Liu1, Jingyi Yang1,2, Xuelian Bai1,3, Lemin Wei1,3, Yilin Feng4   

  1. 1.Linze Inland River Basin Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.Gansu Agricultural University,Lanzhou 730000,China
    3.University of Chinese Aeademy of Sciences,Beijing 100049,China
    4.Ningxia University,Yinchuan 750021,China
  • Received:2021-11-11 Revised:2022-03-23 Online:2022-11-20 Published:2023-01-09
  • Contact: Wenzhi Zhao

Abstract:

Artificial vegetation restoration is the main method for the restoration of abandoned mining areas in Qilian Mountain Nature Reserve. After nearly 5 years of restoration, although the coverage of vegetation in the abandoned mining areas was significantly improved, but the changes of soil fauna community as an important indicator for evaluating the effect of soil restoration were still unclear. We studied the distribution characteristics and influencing factors of ground arthropods using pitfall trapping in a typical abandoned coal mine area of Qilian Mountain Nature Reserve by field investigation. The results show that: (1) plant richness, biomass and coverage, soil coarse sand content, organic matter and total nitrogen content in the restoration area were significantly lower than those in the adjacent area (P<0.05); but soil fine sand content, clay silt content, soil water content, total K and total P had no significant difference (P>0.05). (2) the activity density and diversity index of ground arthropods in the restoration area were significantly higher than those in the adjacent area, and the ground arthropods in the restoration and adjacent areas were mainly from Acrididae and Formicidae, accounting for 12.7% and 55.7%, 14.4% and 49.6%, respectively. The similarity of ground arthropods was 39.9%, 52.9% and 43.4%, respectively. (3) the consequences of pRDA show that soil organic matter content were key environmental factors affecting the assemblage of predatory arthropods, while herbaceous plant richness and the coarse sand content were key environmental factors affecting the assemblage of herbivorous arthropods. In general, the abundance and diversity of ground arthropod community in the restored abandoned coal mine areas have exceeded that in the adjacent areas, which indicates that ground arthropods such as ants, beetles and locusts have a sensitive to response to vegetation and soil environment changes driven by measures such as restoration of soil and vegetation covering and enclosure in coal mining areas of the Qilian Mountain Nature Reserve. Therefore, it is necessary to optimize the vegetation and soil restoration mode, increasing soil fauna diversity and multifunction, so that the ecological environment of the abandoned mining areas can be quickly restored.

Key words: Qilian Mountain Nature Reserve, mining area restoration, ground arthropods, community structure, influencing factors

CLC Number: