Effects of Clipping on Soil Nematode Community Structure in Semi-arid Grasslands

doi:10.11733/j.issn.1007-0435.2026.02.022

Acta Agrestia Sinica ›› 2026, Vol. 34 ›› Issue (2): 601-610.DOI: 10.11733/j.issn.1007-0435.2026.02.022

Effects of Clipping on Soil Nematode Community Structure in Semi-arid Grasslands

FENG Jin-lei¹, QU Xiao-wan², ZHANG Ruo-bing¹, LI Jiang-yan¹, JIA Ying-xin¹, ZHANG Yu-dan¹, SU Peng¹, WANG Yi-bo³, QIU Lin⁴, Miao Yuan¹, WANG Dong¹

1. School of Life Sciences, Henan University, Kaifeng, Henan Province 475004, China;
2. Guangdong Shuibao Ecological Engineering Consultanting Co., Ltd., Guangzhou, Guangdong Province 510640, China;
3. The Characteristic Agricultural Development Center, Lingbao County, Sanmenxia, Henan Province 472500, China;
4. The Forest Science Research Institute of Xinyang, Xinyang, Henan Province 464031, China

Received:2024-12-06 Revised:2025-04-03 Published:2026-01-22

刈割对半干旱草地土壤线虫群落结构的影响

冯金磊¹, 屈晓婉², 张若冰¹, 李江艳¹, 贾颖欣¹, 张玉丹¹, 苏鹏¹, 王益博³, 邱林⁴, 苗原¹, 王冬¹

1. 河南大学生命科学学院, 河南开封 475004;
2. 广东水保生态工程咨询有限公司, 广东广州 510640;
3. 河南灵宝市特色农业发展中心, 河南三门峡 472500;
4. 河南省信阳市林业科学研究所, 河南信阳 464031

通讯作者: 苏鹏，E-mail:15503785877@163.com
作者简介:冯金磊（1999-），男，汉族，山东济南人，硕士研究生，主要从事恢复生态学研究，E-mail:fengjl1999@163.com；
基金资助:
河南省自然科学基金项目（242300421102）；河南省高等学校青年骨干教师培养计划项目（2024GGJS018）；信阳生态研究院开放基金项目（2023XYQN11）资助

Abstract

Abstract: Soil nematodes are pivotal for material cycling and energy flow in grassland ecosystems. Clipping is a widespread grassland management practice in northern China. However， the mechanisms by which clipping affects the composition and structure of soil nematode communities remain unclear. nematode functional footprints across plant communities remain poorly understood. This experiment examined how clipping influenced soil nematode composition， structure， and functional footprint across six plant communities in the typical steppe of Inner Mongolia， providing a theoretical basis for grassland ecosystem management. Clipping significantly increased the total abundance of soil nematodes， the relative abundance of bacterivores， the maturity index， and the Wasilewska index. At the same time， it reduced the relative abundance of plant parasitic nematodes， the nutritional diversity index， the Shannon-Wiener index， the evenness index， and the enrichment index. Fauna analysis revealed that clipping increased the functional footprint of soil nematodes and food web complexity， while it reduced the enrichment index. Soil nematode community composition was significantly affected by soil nitrate nitrogen content， total carbon content， and litter mass. Our results demonstrated that clipping restructured nematode community composition， reducing plant parasitic nematodes’ abundance， thereby improving soil nutrient functions and promoting plant growth. This study concludes that clipping effectively maintains soil nematode community structure in typical steppe， offering a science-based framework for sustainable grassland management in northern China.

Key words: Semi-arid grassland, Clipping, Soil nematodes, Fauna analysis, Biodiversity

摘要： 土壤线虫作为草地生态系统物质循环与能量流动的关键指示生物，其群落动态对地上-地下生态过程具有重要意义。刈割是我国半干旱草原常见的土地利用方式，但其对土壤线虫群落组成与结构的影响机制尚不明晰。本试验选取内蒙古典型草地，以优势种不同的6个植物群落为研究对象，探究刈割对土壤线虫群落组成、结构及功能足迹的影响，旨在为促进草地土壤科学管理提供理论依据。研究结果表明：与对照相比，刈割显著增加了土壤线虫总丰度、食细菌线虫相对丰度、成熟度指数和瓦斯乐斯卡指数，显著降低了植物寄生线虫相对丰度、营养多样性指数、Shannon-Wiener指数、均匀度指数和富集指数（P<0.05）。区系分析表明，刈割增加了土壤线虫的功能足迹及食物网结构化程度，降低了富集指数。硝态氮含量、凋落物量及总碳含量是影响土壤线虫群落组成的关键环境因子。刈割改变了线虫群落结构，降低了对植物生长发育具有阻碍作用的植物寄生线虫数量，有利于土壤养分功能的提高并促进植物群落生长。研究表明，刈割是一种利于典型草地土壤线虫群落结构与组成维持的合理管理措施。

关键词: 半干旱草地, 刈割, 土壤线虫, 区系分析, 生物多样性

FENG Jin-lei, QU Xiao-wan, ZHANG Ruo-bing, LI Jiang-yan, JIA Ying-xin, ZHANG Yu-dan, SU Peng, WANG Yi-bo, QIU Lin, Miao Yuan, WANG Dong. Effects of Clipping on Soil Nematode Community Structure in Semi-arid Grasslands[J]. Acta Agrestia Sinica, 2026, 34(2): 601-610.

冯金磊, 屈晓婉, 张若冰, 李江艳, 贾颖欣, 张玉丹, 苏鹏, 王益博, 邱林, 苗原, 王冬. 刈割对半干旱草地土壤线虫群落结构的影响[J]. 草地学报, 2026, 34(2): 601-610.

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Effects of Clipping on Soil Nematode Community Structure in Semi-arid Grasslands

刈割对半干旱草地土壤线虫群落结构的影响

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