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Chinese Journal of Applied Ecology ›› 2017, Vol. 28 ›› Issue (12): 3965-3975.doi: 10.13287/j.1001-9332.201712.037

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Characteristics of ground-dwelling soil macro-arthropod communities in a biodiversity monitoring plot of black soil cropland, northeastern China

LIU Jie1,2, GAO Mie-xiang3, WU Dong-hui1,2*   

  1. 1College of Earth Science, Jilin University, Changchun, 130061, China
    2Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agro-ecology, Chinese Academy of Sciences, Changchun 130102, China
    3College of Geographical Science, Harbin Normal University, Harbin 150025,China
  • Received:2017-06-21 Online:2017-12-18 Published:2017-12-18
  • Contact: * E-mail: wudonghui@iga.ac.cn
  • Supported by:

    This work was supported by the Key Program of National Natural Science Foundation of China (41430857)

Abstract: Agro-ecosystem is an important component of terrestrial ecosystems and it is one of the key areas of global ecological and environmental studies. A 16 hm2 permanent plot in black soil cropland was built to study the community structure of soil biodiversity in typical black soil region in Northeast China. Pitfall trap was used to investigate the ground-dwelling soil macro-arthropods from August to October 2015 in accordance with the three crop growth stages: whirling stage, silking stage, and milk stage. A total of 5284 ground-dwelling soil macro-arthropods belonging to 47 species were captured sorted into 3 classes, 12 orders, 32 families. 3 dominant groups and 11 common groups were found. Phytophages and Omnivores were dominant groups. The individuals and species numbers of ground-dwelling soil macro-arthropods had significant changes with the vegetative growth period. The maximum values of the Shannon index, Margalef index, Pielou index of soil macro-arthropods all appeared in September, but the maximum dominant index appeared in August. From the variation coefficient (CV) and spatial interpolation of different species, it could be seen that there was heterogeneity in the horizontal direction of the ground-dwelling soil macro-arthropod communities. Regarding the relationships between the ground-dwelling soil macro-arthropod communities and soil environmental factors including soil pH, soil organic matter, total nitrogen and soil water content, the bivariate correlation analysis showed there was no significant correlation between them. Results of canonical correspondence analysis (CCA) further indicated that the dominant and common groups were adaptable to environmental factors and widely distributed in the study area. The results showed that the species richness of ground-dwelling soil macro-arthropods was very high in cropland, and the dynamic of soil arthropod’s composition and spatial distribution pattern in diffe-rent crop growth stages were significantly changed. It was indicated that biodiversity plot monitoring of black soil cropland had become important means to solve the formation and maintenance mechanism of soil fauna community through large-scale and long-term investigation.