The discarding and burning of corn stalks in the fields after harvesting lead to environmental pollution and waste of resources. Composting is an effective way to disposal of the crop straws. Composting is a complex biochemical process and needs a detailed study in cold region. Hence, the succession process of bacteria and in the process of corn stalk composting in cold region was studied by 16SrRNA. diversity analysis showed that the detection results could represent the real situation. The bacterial community diversity from high to low was F50 > F90 > F0 > F10 > F20. The results of beta analysis showed that F20 and F50 had the most similar microbial structure at the phylum level, and the difference between F0 and F20 was the largest. The dominant microbes changed from and in F0 in heating stage to and and in F10 during early high temperature stage, and and in cooling and post composting phases. and were the dominant bacteria in the whole composting process. In the composting process, the microbial community was mainly involved in amino acid metabolism related to nitrogen transformation and carbohydrate metabolism related to lignocellulose degradation. Lignin and hemicellulose were mainly degraded in thermophilic stage. The conversion of nitrogen and degradation of cellulose occurred mainly in the early stages of composting. The research will be helpful to understand the biochemical process of composting in cold region.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8809999 | PMC |
| http://dx.doi.org/10.1080/21655979.2021.2002622 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of cold storage on double integrating sphere optical property measurements of porcine dermis and subcutaneous fat from 400 to 1100 nm.
J Biomed Opt
January 2025
Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States.
Significance: Accurate values of skin optical properties are essential for developing reliable computational models and optimizing optical imaging systems. However, published values show a large variability due to a variety of factors, including differences in sample collection, preparation, experimental methodology, and analysis.
Aim: We aim to explore the influence of storage conditions on the optical properties of the excised skin from 400 to 1100 nm.
Effects of PM exposure and air temperature on risk of cardiovascular disease: evidence from a prospective cohort study.
Front Public Health
January 2025
Graduate School of the First Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China.
Background And Aims: Evidence from extensive cohort studies about the individual and combined associations of air pollution and air temperature with cardiovascular disease (CVD) morbidity is limited. This study aimed to examine the long-term effects of PM exposure and air temperature on CVD based on a cohort study of middle-aged and older populations in China.
Methods: A total of 9,316 non-CVD adults (≥40 years old) who joined the China Health and Retirement Longitudinal Study between 2011 and 2018 were included in our analysis.
Association between ambient air pollution and outpatient visits of cardiovascular diseases in Zibo, China: a time series analysis.
Front Public Health
January 2025
Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China.
Introduction: Facing Mount Tai in the south and the Yellow River in the north, Zibo District is an important petrochemical base in China. The effect of air pollution on cardiovascular diseases (CVDs) in Zibo was unclear.
Methods: Daily outpatient visits of common CVDs including coronary heart disease (CHD), stroke, and arrhythmia were obtained from 2019 to 2022 in Zibo.
Effects of rocky desertification on soil bacterial community in alpine grasslands of the Qinghai-Tibet Plateau.
Front Microbiol
January 2025
College of Agriculture and Animal Husbandry, Qinghai University, Xining, China.
The makeup of soil microbial communities may serve as a crucial predictor of the alpine grassland ecosystem. Climate change and human disturbance have resulted in intensified ecosystem degradation, such as grassland rocky desertification, which may modify the structures and composition of the microorganisms. However, little is known about the effects of rocky desertification on soil microbial communities of soil.
View Article and Find Full Text PDFThe 'Cosmic Bluff' Revisited: Extended Nuclear Deterrence in the US-Norway Alliance.
Cold War Hist
December 2024
Sciences Po - Center for International Studies, 28 Rue des Saints-Pères, Paris 75337, France.
What is the point of a nuclear umbrella? Conventional wisdom suggests that explicit nuclear security guarantees provide junior allies with credible security, facilitating regional stability and nuclear non-proliferation. Yet this is not the only possible reason to maintain a nuclear umbrella. Reassessing the history and politics of nuclear alignment through a case study of the US-Norway alliance, I find that nuclear umbrellas have endured, and can do so, in cases where both the security patron and client believe the arrangement to lack military credibility.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!