Soil Fungal Community Structure in Perennial Cultivated Grassland Around Qinghai Lake

doi:10.11733/j.issn.1007-0435.2024.09.014

Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (9): 2803-2815.DOI: 10.11733/j.issn.1007-0435.2024.09.014

Soil Fungal Community Structure in Perennial Cultivated Grassland Around Qinghai Lake

ZHANG Xiao-fang^1,2,3, ZHANG Chun-ping^1,2,3, DONG Quan-min^1,2,3, HUO Li-an^1,2,3, TONG Yong-shang^1,2,3, ZHANG Xue^1,2,3, YANG Zeng-zeng^1,2,3, YU Yang^1,2,3, CAO Quan^1,2,3

1. Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai Province 810016, China;
2. Qinghai Provincial Key Laboratory of Adaptive Management on Alpine Grassland, Xining, Qinghai Province 810016, China;
3. Key Laboratory of the Alpine Grassland Ecology in the Three Rivers Region, Qinghai University, Ministry of Education, Xining, Qinghai Province 810016, China

Received:2024-03-22 Revised:2024-04-18 Published:2024-10-09

环青海湖地区多年生栽培草地土壤真菌群落结构特征

张小芳^1,2,3, 张春平^1,2,3, 董全民^1,2,3, 霍丽安^1,2,3, 童永尚^1,2,3, 张雪^1,2,3, 杨增增^1,2,3, 俞旸^1,2,3, 曹铨^1,2,3

1. 青海大学畜牧兽医科学院/青海省畜牧兽医科学院, 青海西宁 810016;
2. 青海省高寒草地适应性管理重点实验室, 青海西宁 810016;
3. 青海大学三江源区高寒草地生态教育部重点实验室, 青海西宁 810016

通讯作者: 董全民,E-mail:qmdong@qhu.edu.cn
作者简介:张小芳(1995-),女,汉族,甘肃天水人,博士研究生,主要从事草地生态与环境保护研究,E-mail:1289423206@qq.com
基金资助:
2024年中央财政林业科技推广示范项目：高寒人工草地暂稳态维持技术集成与示范项目资助

Abstract

Abstract: In order to explore the effects of perennial cultivated grassland on the structure and function of fungal community in the region around Qinghai Lake,the characteristics of soil fungal community were analyzed by using ITS method,and FUNGuild was used to predict the function of fungi,and the driving factors of soil fungal community were further revealed by combination with the physical and chemical properties of soil. The results showed that Ascomycota was the dominant fungal phylum in perennial cultivated grassland. The composition of soil fungal community was not significantly changed by mixed cropping,but the richness and diversity of soil fungal community were significantly increased. The results of FUNGuild function prediction showed that the potential functions and nutritional modes of soil fungi in perennial cultivated grassland were diverse,and the relative abundance of Pathotroph-Saprotroph-Symbiotroph fungi was significantly increased by mixed cropping. The main factors affect soil fungal community in the study area included soil TP,SOC,AN,NN,C:P. In conclusion,compared to monocropping,mixed cropping could increase soil total nitrogen and carbon content,promote the richness and the diversity of soil fungal community,and maintain the stability of soil ecosystem.

Key words: Around Qinghai Lake, Perennial monocropping cultivated grassland, Perennial mixed cropping cultivated grassland, Soil fungal community structure, Function prediction

摘要： 为探究环青海湖地区多年生栽培草地对土壤真菌群落结构和功能的影响，以多年生单播和混播栽培草地为对象，采用ITS测序方法对土壤真菌群落特征进行了分析，运用FUNGuild进行真菌的功能预测，并结合土壤理化性质进一步揭示土壤真菌群落的驱动因素。研究结果显示：子囊菌门(Ascomycota)是多年生栽培草地的真菌优势菌门。与单播草地相比，混播没有显著改变土壤真菌群落的组成，但显著增加了真菌群落的丰富度和多样性。FUNGuild功能预测结果表明多年生栽培草地土壤真菌的潜在功能和营养方式具有多样性，且混播草地真菌的病理-腐生-共生型的相对丰度显著高于单播草地。影响研究区土壤真菌群落的主要因子包括土壤全磷、有机碳、铵态氮、硝态氮、全碳:全磷。相比于单播，混播有助于增加土壤全氮和全碳含量，促进土壤真菌群落的丰富度和多样性，更有利于维持土壤生态系统的稳定。

关键词: 环青海湖地区, 多年生单播栽培草地, 多年生混播栽培草地, 土壤真菌群落结构, 功能预测

CLC Number:

S154.3

ZHANG Xiao-fang, ZHANG Chun-ping, DONG Quan-min, HUO Li-an, TONG Yong-shang, ZHANG Xue, YANG Zeng-zeng, YU Yang, CAO Quan. Soil Fungal Community Structure in Perennial Cultivated Grassland Around Qinghai Lake[J]. Acta Agrestia Sinica, 2024, 32(9): 2803-2815.

张小芳, 张春平, 董全民, 霍丽安, 童永尚, 张雪, 杨增增, 俞旸, 曹铨. 环青海湖地区多年生栽培草地土壤真菌群落结构特征[J]. 草地学报, 2024, 32(9): 2803-2815.

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Soil Fungal Community Structure in Perennial Cultivated Grassland Around Qinghai Lake

环青海湖地区多年生栽培草地土壤真菌群落结构特征

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