• Field test of thermally activated persulfate for remediation of PFASs co-contaminated with chlorinated aliphatic hydrocarbons in groundwater

    The extensive use and long-term discharge of PFASs have resulted in their frequent detections in a variety of environmental media, including groundwater, surface water, soil, air, organisms and human blood, both in industrial and non-industrial areas.The co-occurrence of per- and polyfluoroalkyl substances (PFASs) and chlorinated aliphatic hydrocarbons (CAHs) in groundwater has drawn increased attention in recent years. No studies have been conducted concerning the oxidative degradation of PFASs and/or CAHs by in situ thermally activated ...

  • Biological nitrogen fixation and the role of soil diazotroph niche breadth in representative terrestrial ecosystems

    Nitrogen (N), an essential element for organisms, is required for the synthesis of key cellular molecules, such as proteins and nucleic acids.Biological nitrogen fixation (BNF) driven by diazotrophs is a fundamental process underpinning the primary productivity of terrestrial ecosystems and plays a pivotal role in the global nitrogen cycle. However, the relationships between BNF function and soil diazotroph taxa with different nich...

  • Threats to the soil microbiome from nanomaterials: A global meta and machine-learning analysis

    Nanomaterials (NMs) have at least one dimension in the nanoscale range of 1–100 nm. Compared with traditional materials, NMs have larger specific surface areas, higher reactivity, unique structures, and extraordinary photoelectric properties. Soil is the primary sink for released nanomaterials (NMs), but the understanding of the impacts of NMs on the soil microbiome remains fragmented. Moreover, there is currently lack of systematic approaches to evaluate the microbial ecological risks of NMs. In this study, Prof. Ying TENG and hi...

  • Bacteria–Virus Interactions Are More Crucial in Soil Organic Carbon Storage than Iron Protection in Biochar-Amended Paddy Soils

    Soil organic carbon (SOC) is the largest carbon pool in terrestrial ecosystems and is closely associated with the global carbon cycle through decomposition and accumulation processes. SOC is crucial to changing soil physicochemical and biological properties, thus governing the soil ecosystem ...Iron oxides supposedly provide physicochemical protection for soil organic carbon (SOC) under anoxic conditions. Likewise, biochar can modulate the composition of soil microbial communities. However, how Fe oxides and microbial communities influence the fate of SOC with biochar amendment rema...

  • Cadmium Isotope Fractionations Induced by Foliar and Root Uptake for Rice Exposed to Atmospheric Particles: Implications for Environmental Source Tracing

    The rapid development of the world economy has led to the release of large amounts of anthropogenic cadmium (Cd) into the atmosphere. The released Cd is ultimately deposited on the earth surface, which is absorbed by crops and accumulates in food chains. Rice roots and leaves were exposed to cadmium (Cd)-contaminated particles in a greenhouse to modify the fractionation during Cd uptake and transport in the plants by using the Bayesian mixing model. The exposure to atmospheric Cd in rice near a copper smelter was determined under the field co...

  • Nitrogen transfer and cross-feeding between Azotobacter chroococcum and Paracoccus aminovorans promotes pyrene degradation

    Nitrogen is a limiting nutrient for degraders function in hydrocarbon-contaminated environments. Biological nitrogen fixation by diazotrophs is a natural solution for supplying bioavailable nitrogen.Nitrogen is a limiting nutrient for degraders function in hydrocarbon-contaminated environments. Biological nitrogen fixation by diazotrophs is a natural solution for supplying bioavailable nitrogen. Here, Prof. LUO Yongming and his team from the Institute of Soil Science, CAS, determined whe...


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