Article
Plant Sciences
Torrance C. Hanley, Jennifer L. Bowen, Patrick J. Kearns, A. Randall Hughes
Summary: Nutrient enrichment affects plant species and soil microbes, with enriched environments promoting higher plant productivity but plants with different population histories may exhibit varied responses.
JOURNAL OF ECOLOGY
(2021)
Article
Engineering, Environmental
Yu Zhang, Zehua Ji, Yuansheng Pei
Summary: The artificial-natural coupled wetland effectively reduced nutrient input and protected water ecological health, mainly through high removal efficiencies of COD and TN by the lotus pond within the wetland, as well as a range of microorganisms promoting and transforming carbon and nitrogen cycling.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Green & Sustainable Science & Technology
Weining He, Xiao Lin, Zhou Shi, Jian Yu, Shuizhou Ke, Xianlei Lu, Zhengyu Deng, Yuxuan Wu, Li Wang, Qiulai He, Jingwei Ma
Summary: In this study, amended bioretention columns were used to enhance the removal of pollutants from rainwater runoff. The amended media stimulated simultaneous nutrients removal, with the best removal rates achieved by using 90% traditional bioretention soil media + 5% water treatment residuals + 5% coconut coir. Increasing the submerged depth improved the removal of nitrate and total nitrogen, but led to a slight decrease in ammonia nitrogen, total phosphorus, and chemical oxygen demand removal. HiSeq sequencing revealed the changes in microbial community diversity and structure in the bioretention columns under different submerged depths, as well as the presence of potentially beneficial bacteria for pollutant removal.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Soil Science
Xinwei Hao, Xiao Wang, Chunlei Chen, Ruirui Liu, Yanling Yin, Jun Yao, Zhibo Xiao, Xiaozhen Liu, Xihui Shen, Xingyu Liu
Summary: Climate change and human disturbance have caused soil degradation worldwide. Synthetic bacterial communities (SynComs) offer a promising solution for improving soil microbiomes. However, the impact of SynCom on nutrient functions in desertified land remains poorly understood.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Rudong Zhao, Mei He, Feng Liu
Summary: Soil respiration components (Rh and Ra) respond differently to long-term forest conversion, with Rh and Ra patterns primarily driven by soil microbial community (SMC) structures and microenvironmental factors. Plant community attributes and forest management play important roles in soil C emission into the atmosphere during forest conversion.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Engineering, Environmental
Lloyd D. Potts, Alex Douglas, Luis J. Perez Calderon, James A. Anderson, Ursula Witte, James Prosser, Cecile Gubry-Rangin
Summary: Acute environmental perturbations cause changes in microbial community composition and selection of different phylotypes, while chronic perturbations maintain community stability and can lead to the establishment of alternative stable states. This study also demonstrates the functional resilience of ecosystem following environmental perturbations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Microbiology
Tong Wu, Le Zhong, Ji-Wei Pang, Nan-Qi Ren, Jie Ding, Shan-Shan Yang
Summary: This study investigated the influence of Fe3+ on N removal, microbial assembly, and species interactions in a biofilm system. The results showed that 10 mg/L Fe3+ achieved the maximum removal efficiencies for NH4+-N, TN, P, and COD. The presence of 15 and 30 mg/L Fe3+ suppressed the removal efficiency. Bacterial amoA, narG, nirK, and napA showed maximal expression at 10 mg/L Fe3+. The P removal efficiency remained high regardless of Fe3+ concentrations. Candidatus_Competibacter was identified as the most abundant bacterial genus. Determinism and stochasticity equally contributed to microbial community assembly. Co-occurrence network analysis revealed positive and negative interactions among OTUs. Fourteen species were identified as key microbes in the network. This study suggests maintaining a concentration of 10 mg/L supplemental Fe3+ for optimal P, N, and COD removal in biofilm-based wastewater treatment plants.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Microbiology
Catherine Bannon, Insa Rapp, Erin M. Bertrand
Summary: Nutrient co-limitation, known as the simultaneous limitation of productivity by two or more nutrients, is of great importance in marine microbial communities and biogeochemical cycles. Community interaction co-limitation (CIC) is a new category that takes into account the interactions within microbial communities, where one part of the community is limited by one nutrient that affects the production or transformation of another nutrient required by another part of the community. Understanding and identifying CIC mechanisms require an expanded toolset and the incorporation of processes and theories from microbial ecology and evolution. There are still data gaps that limit our understanding of CIC mechanisms.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Environmental Sciences
Colleen Zumpf, Jules Cacho, Nora Grasse, John Quinn, Jarrad Hampton-Marcell, Abigail Armstrong, Patty Campbell, M. Cristina Negri, D. K. Lee
Summary: This study integrated shrub willow buffers into a corn-soybean cropping system to reduce nitrate-N leaching from grain crop production. It was found that landscape position plays a significant role in soil chemical properties, shrub willow's influence and productivity, and the provision of additional ecosystem services. The combination of crop type and landscape position influenced the species composition of the soil microbial community, emphasizing the potential application of shrub willow buffers for ecosystem service provision.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Karol Dudek, German Buitron, Idania Valdez-Vazquez
Summary: This study demonstrated the successful solubilization of Agave bagasse fibers using acidogenesis process with native microbiota, resulting in increased VFA production, sCOD, and VFA yield. Nutrient supplementation promoted alkaline pH, leading to different VFA compositions and yields.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Microbiology
Xinhua Zhao, Qiqi Dong, Yi Han, Kezhao Zhang, Xiaolong Shi, Xu Yang, Yang Yuan, Dongying Zhou, Kai Wang, Xiaoguang Wang, Chunji Jiang, Xibo Liu, He Zhang, Zhimeng Zhang, Haiqiu Yu
Summary: Intercropping of maize and peanut can improve land use efficiency and farmland ecological diversity, alter soil nutrients and microbial communities, and increase maize yield and nitrogen content.
Article
Agricultural Engineering
Chuanfu Zhao, Dong Wei, Dawei Fan, Shuangyu Meng, Shuyi Bian, Xinwen Zhang, Bin Du, Qin Wei
Summary: In this study, a novel electrochemical system coupling nitrifying granular sludge (NGS) into a microbial fuel cell (MFC) system was utilized for simultaneous electricity production and wastewater treatment. After 60 days of operation, high removal efficiencies of organic contaminants and NH4+-N were achieved, reaching 95.43% and 98.55%, respectively. Additionally, soluble microbial products (SMP) released from the anode and cathode chambers could be identified as two fluorescence components.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Qingqing Wang, Qing Huang, Jiaxin Wang, Muhammad Amjad Khan, Genmao Guo, Yin Liu, Shan Hu, Fangming Jin, Junfeng Wang, Yunbo Yu
Summary: The addition of biogas slurry increases the relative abundance of Geobacter during rice growth, which is regulated by total organic carbon. Gene expression and metabolic activities significantly influence the carbon, nitrogen, and phosphorus balance during the mature stage.
Article
Agriculture, Multidisciplinary
Farnaz Kordbacheh, Don N. Flaten, Robert H. Gulden
Summary: Soil fertility management is crucial for crop productivity and profitability, but the response of weed communities to different nutrient sources is not well understood. This study monitored the effect of five nutrient sources on weed communities and found that liquid pig manure and synthetic fertilizer enhanced crop biomass, resulting in low weed density and diversity. However, solid manures increased weed densities and reduced crop biomass, but resulted in more diverse weed communities. The study suggests that a management practice that increases N accessibility to the crop, such as a mixture of solid manures and synthetic fertilizers, may be ideal for a profitable cropping system with decreased weed densities and improved diversity.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Environmental Sciences
Xiaoqing Cao, Xue Gao, Kai Zheng, Shan Wu, Yanan Wu, Guodong Meng, Zhen Hu, Qigui Niu, Jixin Su
Summary: In this study, a combined treatment system of gas flotation, biochemistry technology, and constructed wetland (CW) was used for the treatment of hypersaline oilfield wastewater (HSOW). The system efficiently removed COD, NH4+-N, and oil under high salinity conditions, and different salinity levels shaped specific microbial community structures and functions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
