水土保持学报2023，Vol.37Issue(6)：209-218,10.DOI:10.13870/j.cnki.stbcxb.2023.06.027
福建典型茶园土壤养分及其计量比对细菌群落结构的影响
Effects of Soil Nutrient and MeasurementRatio on Bacterial Community Structure in Fujian Tea Garden
摘要
Abstract
In order to study the effects of soil carbon(C),nitrogen(N),phosphorus(P),potassium(K)content and their eco stoichiometric ratio on soil microbial community structure,soil nutrient-to-metrological ratio and its influence on the characteristics of bacterial communities were systematically measured and analyzed by taking tea gardens in Fuding City,Fujian Province as the research object.The results showed that:(1)The mean contents of C,N,P and K in tea garden soil were 18.39,1.96,0.91,15.57 g/kg,and the mean values of soil C∶N,C∶P,C∶K,N∶P,N∶K,N∶K,were 9.24,61,1.24,3.32,0.13 and 22.39,respectively.(2)The dominant bacteria in the soil were Paludibaculum,Mycobacterium,and Acidobacteria;the dominant bacteria genera were Paludibaculum,Mycobacterium and Bradyrhizobium,and the composition and structure of bacterial communities in different tea plantations were similar,but the bacterial diversity index was significantly different(p<0.05).(3)The correlation analysis results of soil bacteria and nutrient and their measurement ratio in tea gardens at the genus level showed that K was significantly positively correlated with Thermodesulfovibrio and Gaiella(p<0.01),P was positively correlated with Clostridium,Rhodanobacter,and Geobacter(p<0.001),while N was significantly negatively correlated with Pseudomonas(p<0.01),K was significantly negatively correlated with Kitasatospora and Phenylobacterium(p<0.01).Soil C∶N,C∶P,N∶P,P∶K were significantly positively correlated with Chthoniobacter,Dictyobacter,Paraburkholderia,and Bacillus(p<0.05),and were negatively correlated with Bradyrhizobium,Vicinamibacter,Gaiella,and Pseudomonas(p<0.001).(4)The functional prediction results showed that most of the predicted functions of tea garden bacteria were mainly metabolic activities,which had a positive effect on soil nutrient cycling in tea gardens and improving soil carbon sequestration efficiency through metabolic activities.Therefore,this study is of great significance for the study of soil microbial diversity in tea gardens based on nutrient management.关键词
生态化学计量比/细菌群落结构/PICRUSt功能预测/茶园/福鼎市Key words
eco-stoichiometric ratio/bacterial community structure/PICRUSt function prediction/tea garden/Fuding City分类
农业科学引用本文复制引用
杨发峻,王维奇,吴梓炜,许宏达,葛茂泉,林少颖,李先德,张永勋,吴传惠..福建典型茶园土壤养分及其计量比对细菌群落结构的影响[J].水土保持学报,2023,37(6):209-218,10.基金项目
国家自然科学基金面上项目(41571287) （41571287）
福建福鼎白茶文化系统全球重要农业文化遗产申报项目(DH-1815) （DH-1815）
农业农村部全球重要农业文化遗产申报与国际交流项目(12190036) （12190036）
