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应用生态学报 ›› 2022, Vol. 33 ›› Issue (5): 1405-1412.doi: 10.13287/j.1001-9332.202208.032

• 研究论文 • 上一篇    下一篇

冻融作用对大兴安岭多年冻土区土壤节肢动物的影响

窦永静1,3, 王让虎2,3, 吴东辉3*   

  1. 1太原师范学院地理科学学院, 山西晋中 030619;
    2山西大学黄土高原研究所, 太原 030006;
    3中国科学院东北地理与农业生态研究所, 长春 130102
  • 收稿日期:2021-06-21 接受日期:2022-03-22 出版日期:2022-05-15 发布日期:2022-11-15
  • 通讯作者: * E-mail: wudonghui@neigae. ac. cn
  • 作者简介:窦永静, 女, 1988年生, 博士, 讲师。主要从事环境变化与生物多样性研究. E-mail: douyongjing2019@163.com
  • 基金资助:
    国家自然科学基金项目(42007040)、国家重点研发计划项目(2016YFA0602303)和山西省高等学校科技创新项目(2020L0503)资助。

Effects of freeze-thaw cycles on soil arthropod in the permafrost region of the Great Hing'an Mountains, Northeast China

DOU Yong-jing1,3, WANG Rang-hu2,3, WU Dong-hui3*   

  1. 1School of Geography Science, Taiyuan Normal University, Jinzhong 030619, Shanxi, China;
    2Institute of Loess Plateau, Shanxi University, Taiyuan 030006, China;
    3Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
  • Received:2021-06-21 Accepted:2022-03-22 Online:2022-05-15 Published:2022-11-15

摘要: 利用室内模拟冻融试验,以5 ℃未冻融为对照,研究冻融强度(-5~5 ℃、-10~5 ℃)和冻融频次(1、5、10、15次)对我国大兴安岭多年冻土区土壤节肢动物群落结构的影响。结果表明: 试验共分离到土壤节肢动物4198只,隶属于4纲9目24 科 33属;强冻融(-10~5 ℃)显著降低了土壤节肢动物的个体数和类群数,而轻冻融(-5~5 ℃)尤其是短期(1次冻融循环)处理则使某些类群的个体数增加;在轻冻融处理中类群数、Margalef指数和Shannon指数随着冻融频次的增加显著降低,但在强冻融处理中并未表现出规律性变化;越冬虫态是土壤节肢动物抵御低温胁迫的生存策略之一,同时蜱螨亚纲具有较好的耐寒性。土壤节肢动物对冻融作用的差异性响应、物种间的协同作用以及土壤环境均是影响其群落组成的主要因素。本研究将为我国中高纬多年冻土区土壤节肢动物多样性研究和保护提供数据支持和理论依据。

关键词: 中高纬度地区, 多年冻土区, 冻融循环, 节肢动物, 群落结构

Abstract: A laboratory experiment was conducted to investigate the impacts of freeze-thaw intensity (-5-5 ℃, -10-5 ℃) and frequency (1, 5, 10, 15 times) on the community structure of soil arthropod in permafrost zone, Great Hing'an Mountains with the 5 ℃ as control. A total of 4198 individuals of soil arthropod were extracted, belonging to 4 classes, 9 orders, 24 families and 33 genera. The results showed that the number of individuals and groups of soil arthropod decreased significantly in the treatment with high frost intensity (-10-5 ℃), while the individuals of some taxa increased in the treatment with low frost intensity (-5-5 ℃) after the first freeze-thaw incubation. The group number, Margalef index and Shannon index decreased with the increases of freeze-thaw cycling times in low frost intensity treatment, while did not change regularly in high frost intensity treatment. Larva stage was a kind of survival strategy for arthropod to resist low temperature stress, with Acari showing stronger cold tolerance. Different responses of soil arthropod to freeze-thaw cycles, synergistic effect among species and soil environment were factors affecting the structure of soil arthropod community. This study could provide scientific data and theoretical basis for the research and conservation of soil arthropod diversity in the permafrost zone in mid-high latitudes.

Key words: mid-high latitude, permafrost, freeze-thaw cycle, arthropod, community structure