Total carbon concentration data of the Gesäuse-Johnsbachtal site.

The state forest of La Reine is a humid forest of about 5000 ha located in the south of the plain of Woëvre and at the foot of the Meuse hills in France. Numerous ponds and puddles are scattered throughout the forest and it is crossed by many small, more or less natural streams. Upstream of the forest, these waterways are impacted by human activities (large-scale farming, housing without collective sanitation in particular). Since 2019, the Moselle Basin Workshop Zone has been working on the implementation of a workshop site to understand the bio-hydrogeological functioning of three of these streams, particularly in terms of natural purification. Sampling campaigns are regularly organized in the streams and in ponds.

Field work - repeated measurements and multiple point measurements

Dynamics of alpine tree line has been reported from several mountain ranges in Europe, in North America, New Zealand as well as in the Alps (Grabherr et al. 1994). This led to the formation of the GLORIA (Global Observation Research Initiative in Alpine Environments) project, dedicated to initiate a global indicator network towards research on the effects of climate change through an international co-operation. Indian part of Himalaya was not having any site towards this mission till 2013. Therefore, based on some Indian studies which also indicated this trend in more pronounced manner, the need of having Indian network was felt. It was in this context as a part of network project across the Indian Himalayan states under the banner of HIMADRI (Himalayan Alpine Dynamics Research Initiative) a long-term monitoring site was established in Kashmir Himalaya at Gulmarg, a famous hill resort. This particular work plan (TeaComposition initiative) is conducted at this selected HIMADRI site. Gulmarg lies on the north east side of the Pir Panjal Range and is about 60 kms west of Srinagar city. It encompasses the upper catchment area of Ferozpur Nullah and the forests that surround the Gulmarg meadow. The vegetation in Gulmarg mainly comprises of coniferous temperate mountain forests of Blue Pine (Pinus Wallichiana), sub-alpine forests of Silver Fir (Abies pindrow) and Himalayan Birch (Betula utilis), followed by alpine scrub and meadows.

Our primary study sites include a set of seven northern Wisconsin and four southern Wisconsin lakes and their surrounding landscapes. The project, which started in 1981, is administered by the Center for Limnology at the University of Wisconsin-Madison.

Runoff and runoff chemistry at LTER Zöbelboden, Austria

The Chalk Karst observatory groups different karst sites on the Cretaceous Chalk located at the Paris Basin (Norville, Radicatel, Yport, Saint-Martin-Le-Nœud). These karst watersheds range from 10 to 200 km2 and the land use consists of agriculture and grazing under oceanic climate. There are characterized by chalk plateaus covered with clay-with-flints owing to chalk weathering constituting a fairly impervious layer and with quaternary silts. These surficial formations range from 3 to 20 meters depth and are highly susceptible to crusting, compaction, and erosion, particularly during autumn and winter. A numerous swallow holes locally penetrates the chalk through the above-mentioned impervious layer, resulting in a strong connection of the surface with the aquifer inducing infiltration of turbidity releases at spring and well used to drinking water (up to 500 NTU). These Chalk karst sites are one the sites of the French SO-KARST labellised by INSU-CNRS and are a part of the French RBV-Network and ZA Seine.

The Jurassic Karst scheme in place since 2009 aims to characterise the long-term evolution of the karst aquifer system of the Jura mountains. The specific topographical context of the Jura mountains allows the study of these aquifers at increasing altitudes along a climatic gradient. The plant cover and soil types vary along this gradient, thereby modulating the biogeochemical functioning of the infiltration zone of the karst hydrosystems. Four karst springs are monitored at sites of increasing altitude: Fourbanne site (Doubs valley, near Baume-les-Dames): altitude 330 m, catchment surface 30 km2; Lods site (upper Loue valley): altitude 380 m, approx. catchment surface 35 km2; Fertans (Amancy plateau): altitude 530 m, approx. catchment surface 1 km2; Mouthe (source of Doubs river): altitude 950 m, approx. catchment surface 50 km2. A number of physico-chemical parameters are monitored continuously on all sites, and supplemented weekly by automatic sampling at Fourbanne, Lods and Fertans. Contact : Marc Steinmann; Chrono-Environment Laboratory – University of Franche-Comté

The mooring A is located in an open sea area close to Franklin Island, characterized by both clay bottom sediment and a flat morphology. The station can be considered as representative of the productivity and sedimentary conditions of the southern part of the Ross Sea, one of the areas considered to be affected by greater productivity rate.The study of mooring can be consider part of the activities conduct in the framework of the research project "ABIOCLEAR - Antarctic biogeochemical cycles - climatic and paleoclimatic reconstructions. (Resp. M. Ravaioli)". Such Project is the natural prosecution of previous research activity carried out from 1987. Objectives : Study of the particle fluxes towards the marine bottom sediment, in particular with the aim to obtain quali/quantitative estimate of the biogenica component coming from the primary production. Analysis of the vertical rain rate processes and, therefore, the marine cycle of the main biogenic particles such as Carbon and Silica. Try to obtain mass budgets of these parameters, estimating their cycle in the water column until the burial processes in sediments. From apparent accumulate rate calculated in the bottom sediment we will tried to discriminate the real vertical fluxes (Rain Rate) from the horizontal input from sediment remobilization processes. Acquisition and elaboration of long time series of data. Collection of bottom Sediment samples to estimate the variations of the productivity and the paleoproductivity in the area. Historical time series of Mooring A: Primary productivity data (every three years), fitoplancton, New and regenerated productivity, Seasonal, annual and interannual fluxes measure, monthly Particles samples, current velocity, water salinity, temperature and torbidity, Water-sediment interface measure. Biogeochemical parameters. Radiometrical Data, Mineralogical and grain size characterization. Nutrient, metals. Biostratigraphy interpretations. Lidar data are also available from 1997.

Installed in 1991, Fundata-beech represents an ICP-Forests level II plot, being selected as core plot in Futmon Project. Main parameters investigated in this plot are: crown condition, air chemistry, biodiversity, terrestrial biomass, soil properties, total nitrogen input, phenology, meteorology. The main research topics are: pollution effects, ecosystem structure, biodiversity driven by land use, biodiversity driven by climate change, forest ecology