高砷硫铁矿周边农田土壤砷分布及真菌群落结构特征研究

doi:10.11924/j.issn.1000-6850.casb18030150

中国农学通报 ›› 2018, Vol. 34 ›› Issue (25): 82-89.doi: 10.11924/j.issn.1000-6850.casb18030150

• 资源环境生态土壤气象 • 上一篇下一篇

高砷硫铁矿周边农田土壤砷分布及真菌群落结构特征研究

史晓凯,傅垣洪,程咏梅,刘利军,刘永杰,韩强

山西省土壤环境与养分资源重点实验室,山西大地环境投资控股有限公司,山西大地环境投资控股有限公司,山西省环境科学研究院,山西省环境科学研究院,山西省环境科学研究院

收稿日期:2018-03-29 修回日期:2018-08-15 接受日期:2018-06-22 出版日期:2018-09-07 发布日期:2018-09-07
通讯作者: 刘利军
基金资助:
山西省科技重大专项“煤化工行业有毒恶臭气体污染控制新技术研发与工程示范”(MH2015-07)；土壤环境与养分资源山西省重点实验室开放基金项目“基于微生物固定有效态砷的农田土壤修复技术研究”(2015003)；山西省科技重点研发（指南）项目“主要农业生态区农业面源污染关键技术研究与集成示范-土壤重金属Cr 生态健康风险评价指标体系及预警预报”(201603D21110-1-5)；山西省自然科学基金“农田土壤中DDT降解机理及植物微生物联合修复技术研究”(201601D102057)。

Farmland Surrounding High Arsenic Pyrite: Distribution of Soil Arsenic and Characteristics of Fungi Community Structure

Received:2018-03-29 Revised:2018-08-15 Accepted:2018-06-22 Online:2018-09-07 Published:2018-09-07

摘要/Abstract

摘要： 本文主要以高砷硫铁矿区周边农田中的真菌群落为研究对象,研究利用Miseq高通量测序技术系统的分析了矿区周边不同区域土壤中真菌的群落特征,对硫铁矿区周边土壤真菌群落的适应机制进行了探究分析。结果表明,(1)砷、铁复合污染土壤可促使土壤真菌丰富度降低,而对土壤真菌多样的影响则表现为先促进后抑制；(2)砷、铁复合污染抑制土壤中Ascomycota(子囊菌门)代谢,促进Basidiomycota(担子菌门)代谢,而对Zygomycota(接合菌门)则表现为低浓度促进,高浓度抑制,对Fusarium(镰刀菌属)、Pseudallescheria(假霉样真菌属)、Cryptococcus(隐球菌属)也呈现“低浓度促进、高浓度抑制”作用；(3)砷、铁的复合物污染使土壤中真菌群落结构产生了明显差异,环境因子对土壤环境真菌群落结构差异影响大小依次为有效砷、总砷、总铁。

关键词: 水土资源匹配, 水土资源匹配, 基尼系数, 匹配系数, 安徽省

Abstract: We studied the fungi community in the farmland surrounding the high-arsenic pyrite area, analyzed the community characteristics of fungi in the soils of different regions around the mining area by Miseq highthroughput sequencing technology, in order to clarify the characteristics and adaptation mechanism of the fungi community. The results showed that: (1) arsenic and iron combined contaminated soil could decrease the richness of fungi in soil, and the impact of the combined contaminated soil on fungi diversity was first promoted and then inhibited; (2) arsenic and iron combined pollution inhibited the metabolism of Ascomycota in soil and simulated the metabolism of Basidiomycota, whereas showed a two- phase effects on the Zygomycota, Fusarium, Pseudallescheria and Cryptococcus, namely, at low doses it promoted the metabolism, while at high doses it had a negative effect; (3) arsenic and iron combined pollution caused significant differences in the fungi community structure in soils, and the effects of environmental factors on fungi community structure also had significant differences, the order was total arsenic and total iron. Therefore, during the mining process of high- arsenic pyrite, the fungal community structure in the soil is affected to a certain extent, and it is necessary to strictly manage the stacking of minerals and slag so as to avoid serious damage to the habitat of various organisms in the soil.

史晓凯,傅垣洪,程咏梅,刘利军,刘永杰,韩强. 高砷硫铁矿周边农田土壤砷分布及真菌群落结构特征研究[J]. 中国农学通报, 2018, 34(25): 82-89.

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高砷硫铁矿周边农田土壤砷分布及真菌群落结构特征研究

Farmland Surrounding High Arsenic Pyrite: Distribution of Soil Arsenic and Characteristics of Fungi Community Structure

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