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中国农学通报 ›› 2026, Vol. 42 ›› Issue (5): 92-100.doi: 10.11924/j.issn.1000-6850.casb2025-0738

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

长期免耕覆盖对大型土壤动物群落结构与多样性的影响

任嘉隆1,2(), 李红娟1, 刘继亮2, 辛未冬1   

  1. 1 山西师范大学地理科学学院, 太原 030031
    2 中国科学院西北生态环境资源研究院/临泽内陆河流域研究站, 兰州 730000
  • 收稿日期:2025-09-01 修回日期:2025-12-25 出版日期:2026-03-18 发布日期:2026-03-18
  • 通讯作者:
    辛未冬,女,1980年出生,黑龙江北安人,副教授,博士,主要从事土壤动物生态学研究。通信地址:030031 山西太原小店区太榆路339号 山西师范大学地理科学学院,Tel:0357-2051200,E-mail:xiny-2005@163.com。
  • 作者简介:

    任嘉隆,男,2000年出生,山西长治人,硕士,研究方向:干旱区土壤动物生态地理学。通信地址:030031 山西太原小店区太榆路339号 山西师范大学地理科学学院,Tel:0357-2051200,E-mail:

  • 基金资助:
    国家自然科学基金青年项目“晋南煤矿废弃地恢复演替过程中土壤动物多样性及功能群格局调节机理”(41701287)

Impact of Long-term No-tillage and Mulching on Community Structure and Diversity of Soil Macrofauna

REN Jialong1,2(), LI Hongjuan1, LIU Jiliang2, XIN Weidong1   

  1. 1 College of Geographic Sciences, Shanxi Normal University, Taiyuan 030031
    2 Linze Inland River Basin Research Station/Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000
  • Received:2025-09-01 Revised:2025-12-25 Published:2026-03-18 Online:2026-03-18

摘要:

本研究旨在评估长期免耕覆盖对大型土壤动物群落组成与多样性的影响,为保护性耕作的生态效益评价及农田可持续管理提供科学依据。以山西省临汾市城隍村的长期定位试验田为研究区,选取25 a免耕覆盖(25y-NTS)、21 a免耕覆盖(21y-NTS)、传统耕作(TC)及对照(CK)4种处理,分析保护性耕作对大型土壤动物群落组成和多样性的影响。结果表明,共捕获大型土壤动物214只,隶属3门8纲20目48科。免耕覆盖处理显著提高了土壤动物的个体数量、类群丰富度和多样性指数(P<0.05),其中25y-NTS处理效应最为显著。免耕覆盖显著增加了蜱螨目(Acari)、鼠妇(Porcellionidae)和瓦娄蜗牛科(Valloniidae)等敏感类群的数量,而传统耕作以蚁科(Formicidae)和步甲科(Carabidae)等类群为主。在25y-NTS处理中蚁蜂科(Mutillidae)有较高的丰度,地蜈蚣科(Geophilomorpha)和鼠妇等类群在21y-NTS处理中显著富集,TC中蚁科群落较为优势,而步甲科是CK的优势科。土壤动物分布呈表聚性,且与土壤含水量、有机质、全氮、全磷、速效磷和速效钾呈正相关。长期免耕覆盖可通过减少土壤扰动、改善微环境和提升资源有效性,显著提高大型土壤动物群落的多样性和稳定性,其中25 a免耕覆盖的恢复效应更为显著。综上,土壤动物群落结构及特定指示类群可作为农田生态系统健康和管理措施生态效益的有效生物指标。

关键词: 免耕覆盖, 传统耕作, 大型土壤动物, 群落多样性, 群落功能

Abstract:

The aims are to investigate the impact of long-term no-tillage and mulching practices on the composition and diversity of soil macrofauna, and to provide a scientific basis for evaluating the ecological benefits of conservation tillage measures and sustainable management of farmland ecosystems. Taking the long-term conservation tillage pilot field in Chenghuang Village, Linfen City, Shanxi Province, as the research area, 4 treatments were selected, including 25-year no-tillage and straw mulching (25y-NTS), 21-year no-tillage and straw mulching (21y-NTS), traditional tillage (TC), and control (CK), to analyze the effects of conservation tillage on the composition and diversity of soil macrofauna. A total of 214 large soil animals were captured, belonging to 3 phyla, 8 classes, 20 orders, and 48 families. The results showed that no-tillage and straw mulching treatments significantly increased the individual number, group richness, and diversity index of soil animals (P<0.05), with the 25y-NTS treatment showing the most significant effect; no-tillage and straw mulching significantly increased the number of sensitive groups such as Acari, Porcellionidae, and Valloniidae, while traditional tillage was dominated by Formicidae and Carabidae. In the 25y-NTS, the abundance of Mutillidae was relatively high. In the 21y-NTS, taxa such as Geophilomorpha and Porcellionidae were significantly enriched. The Formicidae community was more dominant in TC, while Carabidae was the dominant family in CK. The distribution of soil animals exhibited significant ground aggregation, positively correlating with soil moisture content, organic matter, total nitrogen, total phosphorus, available phosphorus, and available potassium. Long-term no-tillage and straw mulching can significantly enhance the diversity and stability of large soil animal communities by reducing soil disturbance, improving the micro-environment, and enhancing resource availability, with the recovery effect of 25-year no-tillage and straw mulching being more pronounced. In conclusion, soil animal community structure and specific indicator groups can serve as effective biological indicators for evaluating the health of farmland ecosystems and the ecological benefits of management measures.

Key words: no-tillage with mulching, traditional farming, macrofauna, community diversity, community function