img

官方微信

高级检索

中国沙漠 ›› 2025, Vol. 45 ›› Issue (5): 253-265.DOI: 10.7522/j.issn.1000-694X.2025.00014

• • 上一篇    

降水量对灌丛微生境地面节肢动物群落的影响

郭志霞1,2,3(), 刘任涛1,2,3(), 赵文智3,4   

  1. 1.宁夏大学,林业与草业学院,宁夏 银川 750021
    2.宁夏大学,生态环境学院,宁夏 银川 750021
    3.宁夏大学,西北土地退化与生态恢复国家重点实验室培育基地,宁夏 银川 750021
    4.中国科学院西北生态环境资源研究院,甘肃 兰州 730000
  • 收稿日期:2024-07-14 修回日期:2025-02-18 出版日期:2025-09-20 发布日期:2025-09-27
  • 通讯作者: 刘任涛
  • 作者简介:郭志霞(1995—),女,山西吕梁人,博士研究生,主要从事草地生态研究。E-mail: 13753447471@163.com
  • 基金资助:
    干旱区生态水文宁夏科技创新团队项目(2021RXTDLX01);国家自然科学基金项目(32363108);宁夏自然科学基金创新群体项目(2023AAC01002)

Effect of different precipitation gradients on community characteristics of ground-active arthropods under shrub microhabitats

Zhixia Guo1,2,3(), Rentao Liu1,2,3(), Wenzhi Zhao3,4   

  1. 1.College of Forestry and Prataculture /, Ningxia University,Yinchuan 750021,China
    2.School of Ecology and Environments /, Ningxia University,Yinchuan 750021,China
    3.Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwestern China, Ningxia University,Yinchuan 750021,China
    4.Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2024-07-14 Revised:2025-02-18 Online:2025-09-20 Published:2025-09-27
  • Contact: Rentao Liu

摘要:

为揭示降水梯度对灌丛微生境地面节肢动物群落的影响,根据年降水量选择干旱、半干旱和半湿润区草地,以共有的灌丛黑沙蒿(Artemisia ordosica)、柠条锦鸡儿(Caragana korshinskii)为对象,以灌丛间开阔地为对照(CK),连续3年利用陷阱杯法,研究了降水梯度下灌丛微生境下地面节肢动物的物种组成、多样性分布特征及影响因素。结果显示:干旱区微生境间地面节肢动物群落组成均存在显著差异;“虫岛效应”在半干旱区微生境间无显著性;在干旱和半湿润区,柠条锦鸡儿灌丛栽植有利于地面节肢动物个体数和类群数增加。dbRDA结果显示,土壤全碳、含水量和草本植物丰富度是影响降水梯度下微生境地面节肢动物群落结构的重要因素。随年降水减少,不同灌丛微生境下地面节肢动物群落组成差异增大,在干旱、半湿润区,栽植柠条锦鸡儿灌丛对地面节肢动物的保育效应要优于黑沙蒿灌丛。

关键词: 降水, 灌丛, 地面节肢动物, 群落特征

Abstract:

The objective of this study is to examine the effects of different precipitation gradients on the distribution of ground-active arthropods communities in shrub microhabitats, an investigation of ground-active arthropods abundance and diversity beneath the shrubs (Artemisia ordosica and Caragana korshinskii) and open spaces between shrubs was conducted a field experiment by using pitfall trapping method during three consecutive years in the arid, semiarid and semi-humid grassland ecosystem. Species composition, diversity distribution characteristics and influencing factors of terrestrial arthropods in shrub microhabitats with different precipitation gradients were investigated. The results showed that: in the arid grassland, there were significant differences in the composition of ground-active arthropods communities among different microhabitats; in the semiarid grassland, A. ordosica and CK were significant different from C. korshinskii; while in the semi-humid grassland, there were no significant differences among different microhabitats. “Bug island” effect of different shrubs on ground-active arthropods were non-significant in the semiarid grassland; in the arid and semi-humid grassland, C. korshinskii favored an increase in the number of individuals and group richness of ground-dwelling arthropods. The dbRDA results showed that TC, SM, and HR were important factors regulating the structure of the ground-dwelling arthropods communities among the different microhabitats under precipitation gradients. A comprehensive analysis showed that the differences in the composition of ground-dwelling arthropods communities in different microhabitats increased with the decrease in annual precipitation, and it was suggested that there was facilitative effect of C.korshinskii plantations on the abundance and richness of ground-active arthropods relative to A. ordosica in the arid and semi-humid grasslands.

Key words: precipitation, shrub, ground-active arthropods, characteristics of community

中图分类号: