JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (2): 213-218.doi: 10.12302/j.issn.1000-2006.202112042

Special Issue: 南京林业大学学报(自然科学版)2021-2023 森林保护学科论文引文专辑

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Effects of soil different preservation time on the soil animals separation results of Oribatida and Collembola by low temperature storage

DU Zhiqi1(), MENG Qingfan1,*(), FENG Lichao2,*(), GE Jiarong1, HUANG Jinbin1, SHI Jingjing1, LI Hongrui1, CEN Zucai1   

  1. 1. College of Forestry, Beihua University, Jilin 132013, China
    2. College of Agricultural, Jilin Agricultural Science and Technology University, Jilin 132101, China
  • Received:2021-12-30 Revised:2022-06-06 Online:2023-03-30 Published:2023-03-28

Abstract:

【Objective】 This research aims to explore the effects of different storage time on the separation effects of soil animals under the condition of soil low temperature storage, so as to provide a reference for a large number of collection and separation of soil animals.【Method】 On October 6, 2018, the natural Mongolian oak (Quercus mongolica) forest in Songhua Lake Nature Reserve, Jilin City, the soil at different depths was drilled by the five point sampling method, brought back to the laboratory and stored in the indoor 4 ℃ refrigerator. The Berlese-Tullgren method was used to separate the soil animal samples of Oribatida and Collembola on the same day, 7, 14, 21 and 28 days later. The species and genera of Oribatida and Collembola were determined according to the morphological characteristics under the microscope.【Result】 With the increase of preservation time, the individual number and the number of species of soil animals of Oribatida and Collembola showed a downward trend; Under the same preservation time and different depths, the species of Oribatida and Collembola had significant differences with other depths (P<0.05), and showed a downward trend. The number of species of Oribatida and Collembolan collected in litter layer was significantly different from that in 5, 10 and 15 cm soil layers (P<0.05), and also showed a downward trend.【Conclusion】 Increasing the soil preservation time under cold storage will reduce the separation efficiency of medium-sized soil animals. The separation effect of Oribatida is the best on the day of soil collection, and the isolation of Collembola was not affected by soil storage time. Oribatida and Collembola animals were mainly collected in the litter layer. The soil depth increased while the soil animals decreased.

Key words: low temperature storage, forest soil, soil animal, preservation time, Oribatida, Collembola

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