期刊
BIOCHAR
卷 3, 期 2, 页码 229-237出版社
SPRINGER SINGAPORE PTE LTD
DOI: 10.1007/s42773-020-00078-8
关键词
Aerobic composting; Bacterial community succession; Bamboo biochars; 16S rDNA
The study found that bacterial communities in compost and bamboo biochar additive differed, with compost having higher abundance of bacteria and biochar having higher diversity. Additionally, the dominant phylum Firmicutes decreased in compost samples but remained dominant in biochar additives throughout the composting period. This suggests that biochar addition can impact the bacterial composition and abundance in composting processes.
Previous research showed that biochar addition facilitated composting and elevated nutrient retention. However, few of these studies explored bacterial structure and abundance in the compost mixture and biochar additive. Thus, this study aims to distinguish bacterial communities in both compost and bamboo biochar (BB) additive. Results indicated that the dynamics of nutrient contents in compost and BB samples were in a similar pattern, although there were lower levels of nutrients and metals (i.e., Cu and Zn) in BB additives. The total number of operational taxonomic units (OTUs) in both compost and BB additives peaked on day 7 and then gradually reduced during composting. There was more abundance of bacteria in compost, whereas the diversity of bacteria was more in BB additives. Furthermore, the dominant bacteria in compost and BB samples were distinct at the different stages of composting. The Firmicutes steadily decreased in compost samples (from 34.78% to 7.65%), while it was the dominant phylum in BB additives during the whole composting period. Furthermore, Ruminofilibacter, Pseudoxanthomonas, and Actinomadura were the most abundant genera in compost samples than Pseudoxanthomonas, Azoarcus, and Paenibacillus in BB additives at the final stage of composting. Results from this study could provide a theoretical reference for the sound performance of biochar-added composting.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据