{"id":1914,"date":"2025-10-07T09:17:52","date_gmt":"2025-10-07T07:17:52","guid":{"rendered":"https:\/\/www2igg.cnr.it\/?page_id=1914"},"modified":"2026-03-18T14:48:05","modified_gmt":"2026-03-18T13:48:05","slug":"laboratorio-di-flussi-biogeochimici","status":"publish","type":"page","link":"https:\/\/www.igg.cnr.it\/en\/laboratorio-di-flussi-biogeochimici\/","title":{"rendered":"Biogeochemical Flows Laboratory"},"content":{"rendered":"
The study of gas exchanges at the soil-atmosphere and water-atmosphere interfaces allows us to understand various processes that occur both on the surface and underground, from endogenous gas emissions in volcanic and geothermal areas to carbon fluxes induced by vegetation and microbial activity in natural and cultivated soils, lakes, and landfills.<\/h6>\n\n\n\n
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The Laboratory<\/h3><\/div><\/div>
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The Institute of Geosciences and Earth Resources has developed and applied measurement techniques in all these fields of investigation, beginning in the 1980s with applications to emissions from volcanic and geothermal areas, and subsequently to landfill and lake gas emissions, developing measurement instruments and applying statistical, geostatistical, and analytical techniques.<\/p>\n\n\n\n

In recent years, IGG-CNR researchers have applied the non-stationary accumulation chamber technique to the measurement of gas flux exchange in the Alpine and Arctic tundra, further refining the measurement protocol and analytical technique for low-flux emissions and updating the instrumentation.<\/p>\n\n\n\n

Current research topics focus on:<\/p>\n\n\n\n

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  1. the characterization of geothermal and volcanic areas;<\/li>\n\n\n\n
  2. the evolution of biochemical decomposition of waste for waste management, the reconstruction of the kinetic parameters of decomposition processes and the estimation of total greenhouse gas emissions;<\/li>\n\n\n\n
  3. the influence of biotic and abiotic variables on the biogeochemical evolution of alpine meadows and arctic tundra under climatic and anthropogenic pressures.<\/li>\n<\/ol>\n<\/div><\/div><\/div>\n\n\n\n
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    Instruments<\/h3><\/div><\/div>
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    The laboratory is equipped with portable flowmeters for the detection of CO2<\/sub>, CH4<\/sub>, H2<\/sub>O, H2<\/sub>S, VOCs, field instrumentation for the measurement of meteorological parameters (air and soil temperature, solar radiation, relative air humidity, soil humidity, air pressure), and equipment for sampling interstitial gases.<\/p>\n\n\n\n

    The laboratory is also equipped with instrumentation for the calibration of flow measurement systems and is engaged in the development of new analytical methods for sampling gases in complex matrices and at very low concentrations.<\/p>\n\n\n\n

    In detail, the available tools are:<\/p>\n\n\n\n