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中国沙漠 ›› 2026, Vol. 46 ›› Issue (3): 209-218.DOI: 10.7522/j.issn.1000-694X.2026.00013

• • 上一篇    

人工灌木林平茬对科尔沁沙地林下植被和土壤多功能性的影响

孟儒1(), 米文韬1, 赵源1, 李玮1, 任卫波1(), 李向晨2, 张今奇2   

  1. 1.内蒙古大学 生态与环境学院/内蒙古草地生态学重点实验室-省部共建草地生态学国家重点实验室,内蒙古 呼和浩特 010021
    2.赤峰市林业科学研究所 内蒙古赤峰森林生态系统定位观测研究站,内蒙古 赤峰 024005
  • 收稿日期:2025-12-24 修回日期:2026-03-03 出版日期:2026-05-20 发布日期:2026-06-11
  • 通讯作者: 任卫波
  • 作者简介:孟儒(1998—),女,河北省承德人,博士,主要从事生态修复技术研究。E-mail: mengru2100922764@163.com
  • 基金资助:
    内蒙古自治区揭榜挂帅项目(2024JBGS0007)

Effect of coppicing in artificial shrub plantations on understory vegetation and soil multifunctionality in the Horqin Sandy Land

Ru Meng1(), Wentao Mi1, Yuan Zhao1, Wei Li1, Weibo Ren1(), Xiangchen Li2, Jinqi Zhang2   

  1. 1.School of Ecology and Environment / Inner Mongolia Key Laboratory of Grassland Ecology and the Candidate State Key Laboratory of Ministry of Science and Technology,Inner Mongolia University,Hohhot 010021,China
    2.Inner Mongolia Chifeng Forest Ecosystem Positioning Observation Research Station,Chifeng Forestry Science Research Institute,Chifeng 024005,Inner Mongolia,China
  • Received:2025-12-24 Revised:2026-03-03 Online:2026-05-20 Published:2026-06-11
  • Contact: Weibo Ren

摘要:

平茬作为灌木林更新复壮的重要举措,可以有效抑制灌木林衰老化,也是退化灌木林生态修复与质量提升的有效途径。本研究以翁牛特旗人工建植3年的柠条锦鸡儿(Caragana korshinskii)灌木林草地为研究对象,通过分析平茬与未平茬处理下柠条锦鸡儿林草地植物群落结构、土壤养分及微生物群落变化,并结合土壤多功能性,探讨平茬措施对沙地土壤多功能性的影响。结果表明:(1)平茬措施显著增加了植物群落的地上生物量。(2)平茬后,深层土壤速效钾含量显著增加,浅层土壤有机碳含量显著增加,而浅层土壤pH显著下降。(3)平茬前后土壤细菌和真菌群落的多样性指数无显著差异。(4)平茬措施显著增加了土壤多功能性。综上,平茬措施可以有效促进沙地植物生长以及在土壤改良方面表现出一定的作用,可作为沙地生态系统管理的有效手段。

关键词: 沙地, 平茬措施, 土壤养分, 土壤多功能性

Abstract:

Coppicing, as an important measure for the rejuvenation and renewal of shrub forests, not only effectively curbs the aging of shrub forests but also serves as an effective approach for the ecological restoration and quality improvement of degraded shrub forests. This study took the three-year-old artificially planted Caragana korshinskii shrubland grassland in Wengniute Banner as the research object. By analyzing the changes in vegetation community structure, soil nutrients, and microbial communities in the Caragana korshinskii shrubland under the treatments of coppicing and no coppicing, and integrating these results with soil multifunctionality, we examined the effects of coppicing on soil multifunctionality in sandy land. The results showed that: (1) The coppicing measure significantly increased aboveground biomass of the plant community. (2) After coppicing, the soil available potassium content increased significantly in deeper layers, soil organic carbon increased significantly in surface layers, and soil pH decreased significantly in surface layers. (3) There was no significant difference in the diversity index of soil bacterial and fungal communities before and after coppicing. (4) The coppicing measure significantly enhanced soil multifunctionality. In conclusion, the coppicing measure effectively promotes plant growth in sandy lands and shows measurable benefits for soil improvement, suggesting that it can be an effective management practice for sandy-land ecosystems.

Key words: sandy land, coppicing, soil nutrients, soil multifunctionality

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