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Total results: 2.

Water chemistry and ecological dynamics

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Data Product Type: 

  • Standing water (Lakes)

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Abstract: 

The major threats to the biodiversity of mountain lakes are growth in tourism, rapid urbanization, pollution, land use intensification, water uptake, progressive eutrophication, introduction of alien species and climate change, with variable weight in different Protected Areas. Typical phenological responses to changing conditions include shifts in timing, magnitude and duration of phytoplankton blooms, as well as altered community composition, nutrient load and pollutants. Waters samples for physical and chemical parameters (major and minor ions, organic carbon, nitrogen, phosphorous, pH, conductivity) and population dynamics (phytoplankton, zooplankton) have been collected since 2008 from alpine lakes, following a depth-integrated sampling. Measurements are carried out two times for year.

Date Range: 

2008-07-01 to 2017-09-30

Soil characteristics and Carbon fluxes

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Data Product Type: 

  • Soil

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Abstract: 

Carbon fluxes between soil, vegetation and atmosphere are only partially known for mountain grasslands, also owing to the complex geological matrix, to the wide variations in soil depth and sub-soil characteristics (e.g., solid rock, fractured rocks, coarse moraine material, etc…), and to the unknown response of the fluxes to extreme impact events and climate variability. Soil samples were collected in 2016 in Noaschetta from grassland plots in different sites at different depth (5-15 cm) for physical-chemical analyses (organic carbon, nitrogen, inorganic carbon, pH, conductivity, grain size). CO2 fluxes in Noaschetta have been measured since 2016 in two sites (Piangirot and Piansengio) in grazed and ungrazed plots. Since 2017, flux measurements have been started at Piani del Nivolet (2700 m a.s.l.) in 4 plots, each having an average area of about 250 square meters, characterized by different geological substrata. For each plot a soil pit were digged and soil samples at different depth collected for chemistry and C-stable isotopes characterization. Measurements are available during the summer period monthly, together with soil temperature and volumetric water content, air temperature and humidity, radiance. Since August 2019, CO2 and H2O fluxes data are acquired every 30 minutes using eddy covariance methods.

Date Range: 

2016-08-01 to 2019-09-30