Datasets

• LWF Alptal long-term research site

  LWF plot Alptal Community: Alpthal / canton SZ Date of installation: 31 May 1995 Size of the plot: 0.6 ha Altitude: 1149-1170 m Mean slope: 23% Geology (in German):...
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• Database on holdover time of lightning-ignited wildfires

  This database contains open, harmonized, and ready-to-use global data on holdover time. Holdover time is defined as the time between lightning-induced fire ignition and fire...
  • ZIP

• MPS-2 on LWF Visp to survey 2017 mortality wave

  Continuous measurement of soil matrix potential at 15, 50 and 100 cm depth with Decagon MPS-2 sensors 1 m N, SE and SW from the stem of 3 threes within much and 3 trees within...
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• Atmospheric deposition (throughfall and bulk deposition) LWF

  Throughfall (precipitation under forest canopy) is a major pathway in forest nutrient cycling, and its quantification is necessary to establish both water and nutrient budgets....
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• Stemflow LWF

  Stemflow (portion of precipitation running down the branches and the trunk and depositing at the base of the tree) can represent a substantial fraction of the total water and...
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• Phenological observations LWF

  Phenological observations are recorded every 14 days on LWF plots where throughfall and bulk precipitation are sampled. The percentage of foliage in reference to its maximum...
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• Leaf area index (LAI) LWF

  Leaf area index (LAI), defined as the total one-sided foliage area per unit ground surface area, is one of the most important characteristics of plant canopy structure. Leaves...
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• Permanent vegetation quadrats LWF

  Ground vegetation is an important compartment of the ecosystem in terms of biodiversity and it takes an active part in the general functioning of the ecosystem. It is also a...
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• Circular vegetation plots LWF

  Ground vegetation is an important compartment of the ecosystem in terms of biodiversity and it takes an active part in the general functioning of the ecosystem. It is also a...
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• Litterfall LWF

  Litterfall is a key parameter in the biogeochemical cycle of forest ecosystems, linking the tree part to the soil compartment. Litterfall has been collected on 15 LWF plots...
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• Crown Condition Assessment and Damage Cause Assessment Sanasilva

  Annual Crown Condition Assessment including mortality and removal and Damage Causse Assessment on the Sanasilva-Sites and LWF plots. Purpose: To assess tree and forest health...
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• Symptoms of O3 injuries LWF

  Measuring air pollutants in forests is important for evaluating the risk for vegetation in areas not covered by conventional air quality monitoring networks. Ozone-induced...
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• Continuous measurement of O3 LWF

  Measuring air pollutants in forests is important for evaluating the risk for vegetation in areas not covered by conventional air quality monitoring networks. Ozone measurements...
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• Passive sampling of O3 LWF

  Measuring air pollutants in forests is important for evaluating the risk for vegetation in areas not covered by conventional air quality monitoring networks. Ozone measurements...
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• 10-HS Pfynwald

  Continuous measurement of soil water content at 10 and 80 cm depth (3 replications) with 10-HS soil moisture probes (Decagon Incorporation, Pullman, WA, USA). Purpose:...
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• TDR Pfynwald

  Continuous measurement of soil water content at one control and in one irrigated plot in 10, 40 and 60 cm depth (4 replications) with TDR (Tektronix 1502B cable tester,...
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• MPS-2 soil water matric potential LWF

  Continuous measurement of soil matrix potential at 15, 50 and 80 cm depth with Decagon MPS-2 sensors Purpose: Improve the available data for the calibration or validation of the...
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• EC-5 soil water content measurement LWF

  Continuous measurement of soil water content at 15, 50 and 80 cm depth (3 replications) with ECH2O EC-5 soil moisture probes (Decagon Incorporation, Pullman, WA, USA)....
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• TDR soil water content measurements LWF Visp

  Continuous measurement of soil water content at 15, 50 and 70 cm depth in Visp (3 replications) with TDR soil moisture probes (Tektronix 1502 B) from 2001 until 25.04.2013...
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• Soil solution chemistry (lysimeters) LWF

  Fortnightly measurement of the soil solution chemistry in 4 soil depths with zero-tension lysimeter below the litter layer and with tension lysimeters at depths of 15, 50 and...
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• Matric potential (manual suction cups) LWF

  Measurement of the soil water availability to plants at 10 LWF plots every 14 days in 5 soil depths (15, 30, 50, 80, 130 cm) with 8 replicates (usually in the IM plot). The...
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• Soil matrix chemistry LWF

  Assessment of several chemical soil parameters at the beginning of the monitoring campaign. Most parameters were determined accordung to the manual of ICP-Integrated-Monitoring....
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• Soil morphology LWF

  Description of several morphological soil properties at the beginning of the monitoring campaign. The properties were described for all genetic horizons in soil pits if possible...
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• Stem discs LWF

  Measurement of tree ring widts in tree stem disks according to 'Bräker O.U. (1993) Anleitung zur Entnahme von Stammscheiben auf Ertragskundeflächen' Purpose: tree growth
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• Deadwood sampling at Sanasilva and LWF sites

  Sampling of deadwood for density and chemical analysis during summer 2009 Purpose: Determination of N and C pools of deadwood Paper Citation: WEGGLER, K.; DOBBERTIN, M.;...
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• Dendrochronological analyses of tree core samples (subplot) LWF

  Two stem core samples of all trees of a subplot of approximately 1 a. Basal Area, Wood volume increment per area estimation Purpose: Investigation of the relation between...
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• Dendrochronological analyses of tree core samples (IsoN) adjacent to LWF sites

  Two stem core samples of 10 trees outside the plot of each main species in the plot were taken at breast height (1.3 m above ground) with a SUUNTO corer. Tree ring width and...
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• Dendrochronological analyses of tree core samples (CATS) adjacent to LWF sites

  There were 2 cores taken at 1.3 m height from each of 10 trees outside the LWF plot Purpose: influence of drought and nutrient availabiliy on tree growth Paper Citation:...
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• Dendrochronological analyses of tree core samples (dominant trees) LWF

  Two stem core samples of 12 to 20 trees outside the plot of each main species in the plot were taken at breast height (1.3 m above ground) with a SUUNTO corer. Tree ring width...
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• Automated point dendrometer measurements at LWF sites

  Continuous stem radius measurements to investigate carbon balance and water relations of trees Purpose: Assessment of growth and water related stem changes
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• Manual circumference band measurement LWF

  Tree circumference change measurements from plastic girth bands Purpose: Assessment of annual tree stem growth Manual Citation: Dobbertin M, Neumann M, 2016: Part V:...
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• Sapflow measurements LWF

  Continuous sap flow measurements with Granier-needles to investigate carbon balance and water relations of trees Purpose: Assessment of water cycle processes
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• Deadwood survey LWF 1995 - line intersect

  Assessment of coarse woody debris on LWF plots using the line intersect method Purpose: Assessing the amount of coarse woody debris Manual Citation: Matthias Dobbertin,...
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• Foliar analyses LWF

  Foliage has been sampled every two years since 1995/1997 on 5-6 trees of the main species on all LWF plots. Concentrations of macronutrients (N, P, K, Ca, Mg, S), carbon (C)...
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• Deadwood survey LWF 2005 - subplot (Forets Biota)

  Assessment of coarse woody debris on LWF plots using full count methods on defined subplots (applying ForestBiota protocoll) Purpose: Assessing the amount of coarse woody debris...
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• Crown Condition Assessment and Damage Cause Assessment LWF

  Assessment of damges, i.e. symptoms, extent and causes on trees. Purpose: Occurrence and extent of diseases Manual Citation: Matthias Dobbertin, Christian Hug, Andreas...
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• Meteorological measurements LWF

  Continuous measurement of air temperature, relative humidity, wind speed and direction, global radiation, photosynthetic active radiation, UVB radiation, and precipation in an...
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• Deadwood survey LWF 2013 - line intersect

  Assessment of coarse woody debris on LWF plots using the line intersect method (repetition of the 1995 survey) Purpose: Assessing the amount of coarse woody debris Manual...
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• Deadwood survey Sanasilva 2013

  Assessment of coarse woody debris on Sanasilva plots (16x16 km grid) using the full count methods on subplots applying BioSoil protocoll Purpose: Assessing the amount of coarse...
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• Deadwood survey LWF 2013 - subplot

  Assessment of coarse woody debris on LWF plots using the line intersect method and full count methods on subplots (repetition of the 2005 survey) Purpose: Assessing the amount...
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• Tree Diameter and Height Inventory LWF

  Tree circumference, height, height to crown base measurements, mortality, decay class and removal assessment on LWF plots Purpose: Assessment of tree and forest growth Manual...
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• Forest monitoring to assess forest functioning under air pollution and climat...

  Forest monitoring to assess forest functioning under air pollution and climate change. Proceedings. FORECOMON 2021 - the 9th forest ecosystem monitoring conference. 7-9 June...
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• Non-Binary Environmental Archive Data (NEAD) format

  Acknowledgement: The NEAD format includes NetCDF metadata and is proudly inspired by both SMET and NetCDF formats. NEAD is designed as a long-term data preservation and exchange...
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• Snow water equivalent for reference date April 1 for Wägital catchment, start...

  Total water reserves of the snow cover [mio m3] for Wägital catchment, Switzerland, for reference date April 1. Data is separated in 2 elevation zones 900m-1500m asl and...
  • TXT

• Avalanche accidents in Switzerland since 1970/71

  When using this data, please consider and adhere to the associated Terms of Use. Consider the newest version with the highest version number. This data collection contains...
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• Fatal avalanche accidents in Switzerland since 1936/37

  When using this data, please consider and adhere to the associated Terms of Use. Consider the newest version with the highest version number. This data collection contains...
  • CSV

• Inventaire forestier national suisse. Résultats du quatrième inventaire 2009-...

  Swiss National Forest Inventory. Results of the fourth survey 2009–2017. The collection of data for the fourth National Forest Inventory (NFI) was carried out from 2009 to 2017,...
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• Genomics and Adaptation in Forest Ecosystems. Book of Abstracts. EvolTree Con...

  The first EVOLTREE Conference, taking place in hybrid format (on-site and online) at WSL Birmensdorf (Switzerland) from 14-17 September, 2021, focuses on the genomics of trees...
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• Ecosystem coupling and multifunctionality - exclosure experiment

  This dataset contains all data on which the following publication below is based. Paper Citation: Risch AC, Ochoa-Hueso R, van der Putten WH, Bump JK, Busse MD, Frey B,...
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• WFJ_MOD: Meteorological and snowpack measurements from Weissfluhjoch, Davos, ...

  Dataset of meteorological and snowpack measurements from the automatic weather station at Weissfluhjoch, Davos, Switzerland, suitable for driving snowpack models. The dataset...
  • SMET
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