Article
Soil Science
Tianli Bao, Xiaoguang Jiao, Xueqin Yang, Mingxiang Xu, Wen Li, Yu Qiao, Liqian Gao, Yunge Zhao
Summary: The study demonstrates that the microbial community structure in biocrusts can be improved and sustained over the long term under moderate disturbance. This improvement is associated with changes in cyanobacterial biomass, available N, soil moisture, vegetation coverage, and the C/N ratio.
Article
Ecology
Wanting Li, Lulu Xie, Chunzhang Zhao, Xuefeng Hu, Chunying Yin
Summary: This study investigated the effects of nitrogen fertilization under different water availability conditions on soil microbial biomass and composition. The results showed that nitrogen fertilization had a stronger impact on soil microbial biomass and composition compared to water regime. Especially under low soil water availability, nitrogen fertilization increased soil microbial biomass and altered the composition of soil microbial communities.
Article
Environmental Sciences
Ze Lv, Xingguo Li, Yujia Wang, Xiaomin Hu, Jing An
Summary: The combined pollution of galaxolide (HHCB) and cadmium (Cd) had a greater influence on the soil microbial community than the single pollution of HHCB, as measured by phospholipid fatty acid (PLFA) analysis. Addition of Cd led to a significant decrease in total microbial biomass and Gram-positive/Gram-negative bacteria ratio, while increasing the bacteria/fungi ratio. Principal component analysis (PCA) and redundancy analysis (RDA) confirmed that the microbial community structure was significantly altered by the combined effects of HHCB and Cd.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Forestry
Ya Shen, Shichen Xiong, Chengming You, Li Zhang, Yu Li, Zongwen Hong, Yifan Hu, Jing Li, Han Li, Lixia Wang, Sining Liu, Bo Tan, Zhenfeng Xu
Summary: This study investigated the impact of stand age on soil microbial communities, revealing that soil microbial biomass is significantly influenced by stand age and soil depth. The biomass of functional microbial groups increased rapidly in younger stands but leveled off in older stands. Soil organic carbon and ammonium nitrogen were found to be the primary drivers of changes in soil microbial biomass and community composition.
Article
Soil Science
Tinghui Yang, Xiaojuan Li, Bin Hu, Dandan Wei, Zilong Wang, Weikai Bao
Summary: This study investigated the latitudinal patterns of soil microbial biomass and community composition in arid valleys of southwest China. The results showed that soil microbial biomass increased with latitude, while specific microbial groups were influenced by vegetation properties and soil nutrients. Climate, vegetation, and soil properties were identified as crucial drivers of changes in soil microbial communities with latitude.
Article
Forestry
Zhuanzhuan Sun, Peilei Hu, Wei Zhang, Dan Xiao, Dongsheng Zou, Yingying Ye, Kelin Wang
Summary: This study compared managed and natural vegetation restorations and found that both types can increase soil microbial community abundance, although it still falls short of the abundance found in mature forests. Soil organic carbon and total nitrogen were identified as the primary factors influencing microbial abundance, while mean annual temperature was recognized as the primary factor contributing to variation in microbial community structure.
Article
Soil Science
Xiaohua Wan, Zaipeng Yu, Mengjuan Wang, Yu Zhang, Manuel Esteban Lucas-Borja, Zhiqun Huang
Summary: This study explored how tree species richness affects soil microbial biomass and community composition through functional trait variation and community-weighted trait means. The findings indicated that an increase in tree species richness decreased total microbial biomass in the soil, with implications on gram-positive to gram-negative bacteria ratio and fungi to bacteria ratio based on leaf nitrogen content and leaf dry matter content traits.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Plant Sciences
Hongbiao Zi, Lei Hu, Changting Wang
Summary: Short-term nitrogen and phosphorus addition have significant effects on soil microbial communities and enzyme activities in alpine meadows, and these effects are rate dependent. Nitrogen addition decreases soil microbial biomass, while phosphorus addition inhibits enzyme activities at low rates and increases enzyme activities at high rates.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Soil Science
Jungang Chen, Biao Zhu, Yunhai Zhang
Summary: The overuse of antibiotics has caused serious concerns worldwide as it may lead to significant changes in soil microbial communities, thereby threatening soil ecosystems. However, the effects of antibiotics on soil microbial biomass and community structure on a global scale are still unclear. Using 66 paired observations, we conducted one of the first global meta-analyses to evaluate the effects of various antibiotics on soil microbial communities and explore the underlying mechanisms. Our findings show that antibiotics suppressed soil microbial biomass, bacterial biomass, and fungal biomass, with the ratio of bacteria to fungi biomass decreasing for all antibiotic types. The negative effects of antibiotics on soil microbial community and bacteria biomass diminished over time, and the response of bacteria biomass to antibiotics varied with latitude, regulated by temperature, precipitation, soil pH, and total nitrogen.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Pingping Wei, Anping Lei, Haichao Zhou, Zhangli Hu, Yukshan Wong, Nora F. Y. Tam, Qun Lu
Summary: This study compared the microbial community structure and function in sediments of a 17-year-old natural regenerated mangrove forest with the original forest, finding no significant differences in microbial metabolism of carbon substrates but lower enzyme activities in the regenerated forest. Seasonal differences in enzyme activities and microbial characteristics were significant in both forests, with the regenerated forest showing higher sensitivity. Correspondence analysis suggested that sediment microbial characteristics in natural regenerated mangroves could be restored.
MARINE POLLUTION BULLETIN
(2021)
Article
Soil Science
Emmanuel Amoakwah, Emmanuel Arthur, Kwame A. Frimpong, Nicola Lorenz, Mohammad Arifur Rahman, Generose Nziguheba, Khandakar R. Islam
Summary: This study found that biochar application in a tropical ecosystem can significantly increase microbial biomass and activity, as well as enhance soil enzyme activity and related biological properties. The treatment with 30-ton biochar ha(-1) had the most pronounced effects on the composition of microbial communities, with a higher fungal to bacterial ratio and increased carbon sequestration potential.
APPLIED SOIL ECOLOGY
(2022)
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
Qiang Sun, Xu Yang, Zhengrong Bao, Jian Gao, Jun Meng, Xiaori Han, Yu Lan, Zunqi Liu, Wenfu Chen
Summary: This study examined the effects of biochar and straw on the soil organic carbon pool. The results showed that both biochar and straw increased the carbon content in the soil, with biochar having a larger contribution to fungal activity and carbon stability. Furthermore, biochar also improved the POC content in the soil, enhancing the soil's ability to store organic carbon.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Forestry
Hongjuan Zhou, Yuqing Geng, Zihan Wang, Ruihong Dai, Qinrui Tian, Yanling Ge, Lixin Chen
Summary: Forest gap positions significantly influence the composition of forest floor microbial communities, with higher microbial abundance in the gap center and gap border compared to the closed canopy. Additionally, the composition of microbial communities is influenced by both gap positions and forest floor layers, with higher microbial abundance in the undecomposed forest layer.
Article
Forestry
Ed-Haun Chang, Isheng Jason Tsai, Shih-Hao Jien, Guanglong Tian, Chih-Yu Chiu
Summary: This study identified significant differences in soil microbial communities across islands in Taiwan, with higher soil organic matter, pH, urease, and PLFA biomass on tropical volcanic islands compared to subtropical granite islands. Soil enzyme activities were positively correlated with soil organic matter and total nitrogen, and soil parent materials and climatic differences were critical factors affecting soil microbial community structure.