广西师范大学学报（自然科学版）2025，Vol.43Issue(1)：9-19,11.DOI:10.16088/j.issn.1001-6600.2024051902
桂北喀斯特植被恢复对球囊霉素相关土壤蛋白的影响
Effects of Karst Vegetation Restoration on GRSP in Northern Guangxi
摘要
Abstract
The glomalin-related soil protein(GRSP)is a crucial constituent of soil organic matter,contributing to the enhancement of soil aggregate water stability and the promotion of soil carbon storage.This study focused on investigating the variations in GRSP content and its influencing factors during karst vegetation restoration in northern Guangxi.Rhizosphere soil,non-rhizosphere soil,and farmland(control)soil from three different stages of vegetation restoration(shrub stage,transition stage with irrigation,and forest stage)were selected as research subjects.The analysis included total glomalin-related soil protein(T-GRSP),as well as easily extractable glomalin-related soil protein(EE-GRSP),along with an examination of key environmental factors affecting changes in GRSP content.The findings revealed significantly higher T-GRSP and EE-GRSP contents in rhizosphere soils at each vegetation restoration stage compared with those in farmland(P＜0.05).Additionally,the T-GRSP content was highest during the forest stage.The ratios of T-GRSP/SOC ranged from 4.45％to 18.05％,while the ratios of EE-GRSP/SOC ranged from 0.23％to 1.35％.Furthermore,these ratios were significantly higher in farmland than at each vegetation restoration stage(P＜0.001).Notably,T-GRSP content was significantly higher in rhizosphere soils than non-rhizosphere soils during both transition and forest stages(P＜0.05).Soil organic carbon and nitrate nitrogen content emerged as key factors driving positive changes in T-GRSP content;meanwhile,the contents of total nitrogen,organic carbon,and microbial nitrogen were identified as key influencers for positive changes observed in EE-GRSP.In conclusion,karst vegetation restoration in northern Guangxi effectively promotes GRSP accumulation and subsequently enhances SOC accumulation and stability.关键词
喀斯特地区/植被恢复/丛枝菌根真菌/球囊霉素/土壤蛋白/根际土壤Key words
karst area/vegetation restoration/arbuscular mycorrhizal fungi/glomalin/soil protein/rhizosphere soil分类
农业科技引用本文复制引用
唐利,李梦霞,黄慧欣,潘心茹,姜雪芳,杨淑君,潘于,覃云斌..桂北喀斯特植被恢复对球囊霉素相关土壤蛋白的影响[J].广西师范大学学报（自然科学版）,2025,43(1):9-19,11.基金项目
国家自然科学基金青年科学基金(32201416) （32201416）
广西师范大学大学生创新创业训练计划(S202210602089) （S202210602089）
