草地学报2026，Vol.34Issue(1)：61-74,14.DOI:10.11733/j.issn.1007-0435.2026.01.007
土壤微生物对荒漠草原一年生和多年生牧草生长发挥的效应
The Effects of Soil Microorganisms on the Growth of Annual and Perennial Forages in the Desert Steppe
摘要
Abstract
The exploration of the mutual relationships between soil microorganisms and different types of for-ages in desert steppes is crucial for maintaining and restoring desert steppe ecosystems.In this study,perennial forages[Stipa breviflora Griseb,S.glareosa P.Smirn,S.krylovii,Cleistogenes songorica(Roshev)Ohwi]and annual forage[Neopallasia pectinata(Pall)Poljak]in desert steppes were taken as the research objects to analyze the enhancement effects of soil microbial concentration on different species of forages.The results showed that:(1)Soil microbial concentration exerted a neutral effect on the growth of perennial forags,mainly due to the mutual offset between the negative effects of bacteria Sphingomonas and fungi Dominikia and the positive effects of bacteria norank_f_Longimicrobiaceae and fungi Rhizophlyctis on their growth.(2)Soil microbial concentration exerted an inhibitory effect on the growth of annual forage Neopallasia pectinata,and this effect intensified with the increase in microbial quantity.Soil microbial α diversity,Gemmatimonadaceae,Coprinopsis,Fusarium in rhizospheric soil,and Rubrobacter,Peziza in non-rhizospheric soil all showed inhibi-tory effects on its growth(P<0.05).The analysis of key microbial groups provides a theoretical basis for sub-sequent related microbial studies,so as to enhance the growth stability of forages in desert steppes.关键词
土壤微生物/荒漠草原/一年生牧草/多年生牧草/增益效应Key words
Soil microorganism/Desert steppe/Annual forage/Perennial forage/Enhancement effect分类
农业科技引用本文复制引用
陈文美,高卉,胡海娜,黄真真,孙智,李海港..土壤微生物对荒漠草原一年生和多年生牧草生长发挥的效应[J].草地学报,2026,34(1):61-74,14.基金项目
内蒙古自治区自然科学基金:用于补播修复退化荒漠草原的豆科牧草根际微生物多样性及功能解析(2023QN03001) （2023QN03001）
国家自然科学基金:土壤氮磷养分调控荒漠草原豆科植物生存与生长的机制(32360072)和促进荒漠草原豆科植物补播建植根际功能微生物组构建及其促生机制解析(32460071) （32360072）
国家重点研发计划子课题:人工牧草驱动的典型"土壤-作物-动物"系统耦合机制(2022YFD1900301)资助 （2022YFD1900301）
