Effects of photovoltaic arrays on composition and biodiversity of soil bacteria in the Songnen grassland
To elucidate the effects of photovoltaic power stations on the composition and diversity of soil bacteria in the Songnen grassland,the soil properties and the characteristics of plant communities between photovoltaic panel rows,under photovoltaic panels and outside photovoltaic arrays (control) in a photovoltaic power station in western Jilin were investigated.Used an Illumina HiSeq 2500 platform to complete the 16S rDNA sequencing of soil bacteria.The results showed that the photovoltaic arrays tended to increase the Ace,Chao1 ,and Simpson indices of soil bacteria and significantly increased the relative abundances of the classes Bacteroidia,Clostridia,Acidobacteriia, Actinobacteria,and Gammaproteobacteria.The main factors affecting the soil bacterial community (OTUs)were soil pH,total carbon,total organic carbon,total nitrogen content,aboveground biomass, and coverage of the plant communities.Therefore,the photovoltaic arrays had changes in the composition and dominant classes of soil bacterial communities in the Songnen grassland and played a positive role in restoring soil microbial diversity.This study helps evaluate the effects of photovoltaic power stations on grassland ecosystems and the environmental impacts of photovoltaic power stations.
photovoltaic power stationsoil microbesplant communitysoil chemical propertiesgrassland restoration