[1]李世汩,徐扬帆,夏新星,等.调理方式对淤泥绿化种植土细菌多样性的影响[J].北方园艺,2023,(15):73-80.[doi:10.11937/bfyy.20224162]
　LI Shimi,XU Yangfan,XIA Xinxing,et al.Effects of Regulation Methods on Bacterial Diversity in Silt Greening[J].Northern Horticulture,2023,(15):73-80.[doi:10.11937/bfyy.20224162]
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调理方式对淤泥绿化种植土细菌多样性的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2023年15 页码: 73-80 栏目: 出版日期: 2023-08-15
Title:
Effects of Regulation Methods on Bacterial Diversity in Silt Greening
作者:
李世汩1; 2; 徐扬帆1; 2; 夏新星1; 2; 陈文峰1; 2; 罗伟1; 2; 曹林涛3
（1.中交第二航务工程局有限公司，湖北 武汉430040；2.中交公路长大桥建设国家工程研究中心有限公司，湖北 武汉 430040；3.湖北文理学院 土木工程与建筑学院，湖北 襄阳 441053）
Author(s):
LI Shimi1; 2; XU Yangfan1; 2; XIA Xinxing1; 2; CHEN Wenfeng1; 2; LUO Wei1; 2; CAO Lintao3
(1.CCCC Second Harbor Engineering Co.Ltd.,Wuhan,Hubei 430040;2.CCCC Highway Bridge National Engineering Research Centre Co.Ltd.,Wuhan,Hubei 430040；3.College of Civil Engineering and Architecture,Hubei University of Arts and Science,Xiangyang,Hubei 441053)
关键词:
调理方式; 绿化种植土; 高通量测序; 微生物多样性
Keywords:
conditioning mode; green planting soil; highthroughtput sequencing; diversity of microorganisms
DOI:
10.11937/bfyy.20224162
文献标志码:
A
摘要:
以聚丙烯酰胺（PAM）+聚合氯化铝(PAC)、粉煤灰、市售传统淤泥改性剂及低碱性淤泥固结剂调理河道淤泥制备绿化种植土为试材，采用高通量测序技术测定了土壤细菌的群落组成及多样性，研究了各调理方式下地方土壤理化性质与优势菌群的关系，以期揭示淤泥调理方式对底泥制备绿化种植土的土壤细菌多样性的作用机制。结果表明:不同复合药剂处理底泥在提升制备绿化土肥力的同时，也改变了制备土壤细菌群落结构，低碱度的淤泥固结剂调理药剂地上生物量最高，土壤多样性指标最好。不同复合药剂调理对土壤微生物多样性影响差异显著，土壤pH与土壤细菌群落多样性呈负相关性，传统固化剂处理后的降幅最大，低碱固结剂则对土壤细菌群落多样性有提升作用。研究表明为改善淤泥脱水后用于园林绿化种植时的土壤质量，机械脱水环节进行淤泥调理时，宜选用低碱度的淤泥调理药剂。
Abstract:
Sediment from Shahe River in Zaoyang was taken as the research object.Polyacrylamide (PAM)+polyaluminum chloride (PAC)，fly ash，commercially available traditional silt modifier，and selfdeveloped low alkaline silt consolidation agent were used to regulate river silt.The soil pH，porosity，water retention and soil fertility indexes of different treatments were compared.Growth of ryegrass the sediment conditioned by different multiple agents was compared by pot experiment，and the variation of soil bacterial diversity were analyzed in each treatment,in order to provide reference for sediment utilization.The results showed that the multiple conditioning agents such as PAM and PAC improved soil water retention and significantly increased soil CEC.The multiple conditioning agents with low alkalinity promoted the growth of ryegrass.The results showed that the effects of different multiple treatments on soil microbial diversity were significantly different.Soil pH was negatively correlated with the diversity of soil bacterial community，and the traditional curing agent had the greatest reduction，while the lowalkali curing agent had an improved effect on the diversity of soil bacterial community.This study showed that，the treatment of sediment with different multiple agents not only improved the fertility of the prepared green soil，but also changed the bacterial community structure of the prepared soil.The low alkalinity silt consolidation agent presented the highest with the highest abovEground biomass and the best soil diversity index.In brief，the modified agents with low alkalinity should be used to ensure the health of the prepared soil when the dehydrated sediment is used for landscaping.

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备注/Memo

第一作者简介：李世汩（1988-），男，硕士，高级工程师，现主要从事淤污泥处理处置等研究工作。Email：lishigu@ccccltd.cn.责任作者：曹林涛（1978-），男，博士，教授，现主要从事道路工程等研究工作。Email：clt@hbuas.edu.cn.基金项目：中国交通建设股份有限公司科技研发资助项目（2019-ZJKJ-01）。收稿日期：2022-10-13

更新日期/Last Update: 2023-09-19