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Fine-scale landscape heterogeneity drives microbial community structure at Robinson Ridge, East Antarctica.
Sci Total Environ
January 2025
School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Australia; Evolution and Ecology Research Centre, UNSW Sydney, Australia. Electronic address:
Life at Robinson Ridge, located in the Windmill Islands region of East Antarctica, is susceptible to a changing climate. At this site, responses of the vegetation communities and moss-beds have been well researched, but corresponding information for microbial counterparts is still lacking. To bridge this knowledge gap, we established baseline data for monitoring the environmental drivers shaping the soil microbial community on the local 'hillslope' scale.
View Article and Find Full Text PDFBiocrusts Mediate the Niche Distribution and Diversity of Ammonia-Oxidizing Microorganisms in the Gurbantunggut Desert, Northwestern China.
Microb Ecol
November 2024
National Key Laboratory of Ecological Security and Sustainable Development in Arid Regions, State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China.
Article Synopsis
- Biological soil crusts (biocrusts) are crucial for nitrogen cycling in desert ecosystems, yet their disturbance's effects on ammonia-oxidizing microorganisms are poorly understood.
- * A 4-year study on the Gurbantunggut Desert showed that removing biocrusts significantly changed the abundance and distribution of ammonia-oxidizing archaea (AOA) and bacteria, especially during different seasons.
- * The research revealed AOA were more abundant than bacteria in deeper soils during summer, and their communities became more varied after biocrust removal, highlighting the important role biocrusts play in maintaining nitrogen transformation processes in these ecosystems.
Optimizing survival and growth of inoculated biocrust-forming cyanobacteria through native plant-based habitat amelioration.
J Environ Manage
November 2024
Department of Agronomy, University of Almería, Carretera de Sacramento s/n, 04120, Almería, Spain; Research Centre for Scientific Collections from the University of Almeria (CECOUAL), Carretera de Sacramento s/n, 04120, Almería, Spain; ECO-ARID, UAL, Unidad Asociada al CSIC por la EEZA, 04120, Almería, Spain.
Low restoration success in degraded drylands has promoted research efforts towards recovery of pioneer components of these ecosystems such as biocrusts. Biocrusts can stabilize soils and improve nutrient cycling to assist vegetation establishment, but their natural recovery following a disturbance may be very slow. Soil inoculation with biocrust-forming components such as cyanobacteria is widely spread to foster biocrust formation.
View Article and Find Full Text PDFEffects of mixed biocrusts on soil nutrients and bacterial community structure: a case study from Hilly Loess Plateau, China.
Sci Rep
September 2024
Technology Lnnovation Center for Land Engineering and Human Seutlements, Xi'an Jiaotong University, Xi'an, 713599, China.
The ecological function of biological crusts in arid and semi-arid areas is of great importance. Bacteria, as a crucial microbial group in biological crusts, play a key role in the formation, nutrient cycling, and regulation of these crusts. However, the succession of biological crusts and the diversity of bacterial communities, along with key environmental factors in the Loess Plateau's hilly and gully areas, remain unclear.
View Article and Find Full Text PDFVascular plants and biocrusts ameliorate soil properties serving to increase the stability of the Great Wall of China.
Sci Total Environ
November 2024
Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China. Electronic address:
The Great Wall, as a World Heritage Site, is constructed with rammed earth and is currently facing the threat of erosion from wind and rain. Vascular plants and biocrusts are the main coverings of the Great Wall, and their role in mitigating soil erosion has attracted increased amounts of attention; however, the understanding of their underlying mechanisms is limited. Here, we conducted an extensive survey of vascular plants, biocrusts, soil properties (soil organic and inorganic binding materials, aggregates, and texture), soil aggregate stability, and soil erodibility at the top of the Great Wall in four different defensive zones in Northwest China.
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