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CH-LAS, Laegeren sub-canopy

Site Description

Sub-canopy site at CH-LAE.

The Lägeren forest site (CH-LAE) is a mixed deciduous forest situated 20 km north-west of Zurich in Switzerland. The study area is located on the south facing ridge of the Jura mountain at 682 m asl, where two eddy covariance stations are placed (above-canopy at 47 m, belowcanopy at 1.5 m). The forest is mainly composed of beech trees (Fagus sylvatica L.), other common species are Norway spruce (Picea abies L. Karst), ash (Fraxinus excelsior L.), Sycamore maple (Acer pseudoplatanus L.), European silver fir (Abies alba Mill.), and large-lived linden (Tilia platyphyllos Scop.). The tree age ranges between approximately 52 and 155 years. The soils of the study area are rendzic leptosols and haplic cambisols, with bedrock of limestone marl, sandstone, and transition zones. The annual mean temperature is 8.8 ± 1.3 °C (mean± SD) and the annual mean precipitation is 831 ± 121 mm (mean 2005–2022). Over the years, there were no significant changes to the forest structure and the leaf area index (LAI) at the site. During spring, the main understory species, wild garlic (Allium ursinum L., height ~ 30 cm, LAI< 0.5) blooms for approximately two months (March-April); some other herbaceous species and juvenile beech trees can be found at the site (<1% cover). The forest floor vegetation remains active until the tree canopy closes. Then only little radiation reaches the forest floor thus impeding the growth of understory plants.

Source: Scapucci et al. (2025)

 

Data

Current Flux Products

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Available Level-1 Fluxes

wdt_ID Site & Year SA GA CO2 H2O N2O CH4 Current Version EFDC Version EFDC Upload EFDC Calcs Details
5 CH-LAS 2014 R350-A IRGA75-A CO2 H2O 30 Nov -0001 PLANNED
6 CH-LAS 2015 R350-A IRGA75-A CO2 H2O 30 Nov -0001 PLANNED
137 CH-LAS 2016 R350-A IRGA75-A CO2 H2O PLANNED
138 CH-LAS 2017 R350-A IRGA75-A CO2 H2O PLANNED
139 CH-LAS 2018 R350-A IRGA75-A CO2 H2O PLANNED
140 CH-LAS 2019 R350-A IRGA75-A CO2 H2O PLANNED
141 CH-LAS 2020 R350-A IRGA75-A CO2 H2O PLANNED
142 CH-LAS 2021 R350-A IRGA75-A CO2 H2O PLANNED
143 CH-LAS 2022 R350-A IRGA75-A CO2 H2O PLANNED
Site & Year SA GA CO2 H2O N2O CH4 Current Version EFDC Version EFDC Upload EFDC Calcs Details

 

Eddy covariance raw data files

 

Photos

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Webcam

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Fieldbook

 

News

QA/QC Short Report

Short Report – QA/QC Meeting 2 Apr 2026

The new Short Report with an overview of recent fluxes and meteo data can be downloaded from here: Short Report - QAQC Meeting 2 Apr 2026 (PDF) ... Read More
QA/QC Short Report

Short Report – QA/QC Meeting 5 Mar 2026

The new Short Report with an overview of recent fluxes and meteo data can be downloaded from here: Short Report - QAQC Meeting 5 Mar 2026_compressed.pdf ... Read More
QA/QC Short Report

Short Report – QA/QC Meeting 29 Jan 2026

The new Short Report with an overview of recent fluxes and meteo data can be downloaded from here: Short Report - QAQC Meeting 29 Jan 2026.pdf ... Read More
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References

  • Scapucci, L., Krebs, L., Burri, S., Hörtnagl, L., & Buchmann, N. (2025). Soil and forest floor respiration already acclimated to increasing temperatures in a mixed deciduous forest. Ecological Processes, 14(1), 71. https://doi.org/10.1186/s13717-025-00639-4

Last Updated on 13 Feb 2026 16:58