兰州大学机构库
Grazing practices affect phyllosphere and rhizosphere bacterial communities of Kobresia humilis by altering their network stability
Hu, Jin-Peng1,2,3,4,5; Zhang, Ming-Xu1,2,3,4,5; Lu, Zhao-Long1,2,3,4,5; He, Yuan-Yuan1,2,3,4,5; Yang, Xiao-Xia6; Khan, Aziz2,7; Xiong, You-Cai2,7; Fang, Xiang-Ling1,2,3,4,5; Dong, Quan-Min6,8; Zhang, Jin-Lin1,2,3,4,5,8
2023-11-20
Online publication date2023-08
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN0048-9697 ; 1879-1026
Volume900
page numbers11
AbstractThe primary utilization strategy for meadow grasslands on the Qinghai-Tibet Plateau (QTP) is livestock grazing. This practice is considered as one of the major drivers of plant-associated bacterial community construction and changes in soil properties. The species of Kobresia humilis is considered as the most dominant one in grasslands. However, how different grazing practices affect the phyllosphere and rhizosphere bacterial communities of K. humilis is unknown. To address this issue, the effects of the grazing enclosure (GE), single-species grazing (YG and SG, representing yak only and sheep only, respectively), and different ratios of grazing (ratio of yak to sheep is 1:2, 1:4, and 1:6, represented by MG1:2, MG1:4, and MG1:6, respectively) on the dominant plant of K. humilis, it's phyllosphere and rhizosphere bacteria, and soil properties were investigated using artificially controlled grazing and grazing enclosure. Our data showed that grazing enclosure enhanced vegetation coverage, and rhizosphere bacterial richness and diversity, while reduced plant number and bacterial network stability of K. humilis. The NO3  -N, K+, and Cl  concentrations were lower under grazing compared to GE. SG reduced theconcentration of NH4+-N, TN, K+, and Na+ compared to YG. Moderate grazing intensity had a lower relative abundance of the r-strategists (Bacteroidota and Gammaproteobacteria) with higher bacterial network stability. Yak and sheep grazing showed reversed impacts on the bacterial network stability between the phyllosphere and rhizosphere of K. humilis. Proteobacteria and Actinobacteriota were identified in the molecular ecological network analysis as keystone taxa in the phyllosphere and rhizosphere networks, respectively, under all treatments. This study explained why sheep grazing has more adverse effects on grazing-tolerant grass species, K. humilis, than yak grazing, and will contribute to a better understanding of the impacts of different grazing practices and grazing enclosure on alpine grassland ecosystems on the QTP.
KeywordGrazing practices Kobresia humilis Bacterial diversity Bacterial network Qinghai-Tibet Plateau
PublisherELSEVIER
DOI10.1016/j.scitotenv.2023.165814
Indexed BySCIE
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:001054083600001
Original Document TypeArticle
PMID 37517723
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568913
Collection兰州大学
Corresponding AuthorDong, Quan-Min; Zhang, Jin-Lin
Affiliation
1.Lanzhou Univ, Ctr Grassland Microbiome, Lanzhou 730000, Peoples R China;
2.Lanzhou Univ, State Key Lab Herbage Improvement & Grassland Agro, Lanzhou 730000, Peoples R China;
3.Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, Minist Agr & Rural Affairs, Lanzhou 730000, Peoples R China;
4.Lanzhou Univ, Engn Res Ctr Grassland Ind, Minist Educ, Lanzhou 730000, Peoples R China;
5.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Peoples R China;
6.Qinghai Univ, Qinghai Acad Anim Sci & Vet Med, Qinghai Prov Key Lab Adapt Management Alpine Grass, Xining 810016, Peoples R China;
7.Lanzhou Univ, Coll Ecol, Lanzhou 730000, Peoples R China;
8.768 West Jiayuguan Rd, Lanzhou 730000, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Hu, Jin-Peng,Zhang, Ming-Xu,Lu, Zhao-Long,et al. Grazing practices affect phyllosphere and rhizosphere bacterial communities of Kobresia humilis by altering their network stability[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,900.
APA Hu, Jin-Peng.,Zhang, Ming-Xu.,Lu, Zhao-Long.,He, Yuan-Yuan.,Yang, Xiao-Xia.,...&Zhang, Jin-Lin.(2023).Grazing practices affect phyllosphere and rhizosphere bacterial communities of Kobresia humilis by altering their network stability.SCIENCE OF THE TOTAL ENVIRONMENT,900.
MLA Hu, Jin-Peng,et al."Grazing practices affect phyllosphere and rhizosphere bacterial communities of Kobresia humilis by altering their network stability".SCIENCE OF THE TOTAL ENVIRONMENT 900(2023).
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