生物多样性 ›› 2023, Vol. 31 ›› Issue (9): 23130.  DOI: 10.17520/biods.2023130

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氮沉降对草地昆虫多样性影响的研究进展

牛永杰1, 马全会1, 朱玉2,*(), 刘海荣1, 吕佳乐3, 邹元春2, 姜明2   

  1. 1.东北师范大学草地科学研究所植被生态科学教育部重点实验室, 吉林松嫩草地生态系统国家野外科学观测研究站, 长春 130024
    2.中国科学院东北地理与农业生态研究所黑土地保护与利用全国重点实验室, 中国科学院湿地生态与环境重点实验室, 黑龙江兴凯湖湖泊湿地生态系统国家野外科学观测研究站, 长春 130102
    3.中国农业科学院植物保护研究所国家天敌等昆虫资源数据中心, 北京 100193
  • 收稿日期:2023-04-24 接受日期:2023-08-30 出版日期:2023-09-20 发布日期:2023-10-12
  • 通讯作者: *E-mail: zhuyu@iga.ac.cn
  • 基金资助:
    吉林省自然科学基金(YDZJ202301ZYTS339);吉林省自然科学基金(20230508089RC);吉林省自然科学基金(YDZJ202201ZYTS486);吉林省教育厅科学技术研究规划项目(JJKH20211300KJ);国家自然科学基金(U19A2042);国家自然科学基金(32101287);国家自然科学基金(32101438);中国科学院东北地理与农业生态研究所青年科学家小组项目(2023QNXZ04)

Research progress on the impact of nitrogen deposition on grassland insect diversity

Yongjie Niu1, Quanhui Ma1, Yu Zhu2,*(), Hairong Liu1, Jiale Lü3, Yuanchun Zou2, Ming Jiang2   

  1. 1. Key Laboratory of Vegetation Ecology of Ministry of Education & Jilin Songnen Grassland Ecosystem National Observation and Research Station, Institute of Grassland Science, Northeast Normal University, Changchun 130024
    2. State Key Laboratory of Black Soils Conservation and Utilization, Key Laboratory of Wetland Ecology and Environment, Heilongjiang Xingkai Lake Wetland Ecosystem National Observation and Research Station, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102
    3. National Data Center of Natural Enemies and Beneficial Insects, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193
  • Received:2023-04-24 Accepted:2023-08-30 Online:2023-09-20 Published:2023-10-12
  • Contact: *E-mail: zhuyu@iga.ac.cn

摘要:

昆虫是草地中数量和种类最丰富的生物类群之一, 占据食物网的不同营养级, 具有重要的生态服务功能。然而, 全球范围内昆虫数量和多样性持续降低, 对生态安全构成了潜在威胁。作为全球变化的主要组分, 不断加剧的氮沉降导致植物多样性下降, 但其对昆虫多样性的影响及机制尚不明确。由此, 本文梳理了近年来国内外相关研究, 发现氮沉降可以对昆虫种群数量和多样性产生正向、负向或中性影响, 其作用方向主要依赖于氮沉降持续的时间和强度、不同昆虫类群和草地类型。氮沉降能够通过改变植物多样性、植物生物量、植物营养、群落结构、微环境等多种途径影响昆虫的食物资源、生境适宜性以及种间相互作用, 进而对昆虫群落产生影响。未来从研究方法上应考虑氮沉降与其他全球变化因子的交互作用以及更大时空尺度的实验研究, 从研究内容上应加强氮沉降对草地昆虫食物网和多营养级关系作用的理解, 从研究机理上应重视昆虫关键功能性状对氮沉降的响应。本文有益于深入理解氮沉降对草地昆虫群落的作用规律及其调控机制, 并为全球变化背景下草地昆虫多样性的保护提供理论指导。

关键词: 养分富集, 氮添加, 全球变化, 节肢动物, 昆虫群落, 食物网

Abstract

Background & Aim Insects are one of the most abundant biological components in grassland ecosystems, playing a critical role in the structure and function of the grassland food web. A systematic summary is lacking of the response patterns and regulatory mechanisms of insect communities due to the increasing severity of global nitrogen deposition.

Review results This paper summarizes relevant research in recent years and finds that nitrogen deposition can exert positive, negative, or neutral effects on insect abundance and diversity. The direction of its impact mainly depends on the duration and intensity of nitrogen deposition, different insect taxa, and types of grasslands. Nitrogen deposition can affect the quantity and quality of food resources, abiotic conditions, and biotic interaction of insect communities through various pathways such as changing plant diversity, plant biomass, plant nutrition, community composition and structure, microclimate, and breeding habitat.

Suggestions & Perspectives In the future, research should strengthen the understanding of (1) the multi-trophic interactions of grassland insects; (2) the interaction between nitrogen deposition and other global change factors; (3) the examination on a larger temporal and spatial scale; and (4) the role of key functional traits of insects to explain and predict the response to nitrogen deposition. A benefit from this study is to understand the impact of nitrogen deposition on grassland insect communities and provide theoretical support for the protection of grassland insect diversity due to global changes.

Key words: nutrient enrichment, nitrogen addition, global change, arthropods, insect community, food web