Water availability for plants

Too little water is available to the trees more and more often: •The vegetation and soil release water into the atmosphere, even moreso the warmer and drier the air. Plants evaporate water through their leaves. Evapotranspiration is the sum of the water released into the atmosphere. •The current evapotranspiration (ETa) depends on the availability of water, i.e. on the amount of precipitation and the capacity of the soil to store rainwater. The potential evapotranspiration (ETp) is the amount of water that would be released into the atmosphere if sufficient water were available. •Below an ETa/ETp ratio of 0.8, drought is likely to affect the plant, as the stomata in the leaves are often closed and the trees limit photosynthesis. •In light and especially dark blue areas there are no disturbances to be expected. •In areas marked yellow to red, the trees can be expected to be affected by drought, especially in the wine red areas. •Trend: Return and expansion of yellow to red areas increase in the period 1981-2018. Period 1981-2018, April to August, spatial resolution 250m x 250m. Source: Remund et al. (2016).

Data and Resources

Map (Preview) map.geo.admin.chSERVICE
Preview map.geo.admin.ch
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ch.bafu.wald-wasserverfuegbarkeit_pflanzenWMS
WMS-FSDI service, layer "Water availability for plants"
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ch.bafu.wald-wasserverfuegbarkeit_pflanzenWMTS
WMTS-FSDI service, layer "Water availability for plants"
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Water availability for plantsHTML
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Additional information

Identifier

668e4c81-5926-4457-9097-b362244b2660@bundesamt-fur-umwelt-bafu

Title for URL of the dataset

wasserverfugbarkeit-fur-pflanzen-transpirationsverhaltnis

Schedule the publication of the dataset

Issued date

February 6, 2019

Modification date

February 6, 2019

Conforms to

Update interval

Irregular

Temporal coverage

Publisher Information

Abteilung Wald, Bundesamt für Umwelt

Contact points

wald@bafu.admin.ch

Languages

English
German
French
Italian

Url

https://www.wsl.ch/de/ueber-die-wsl/organisation/programme-und-initiativen/abgeschlossene-programme-und-grossprojekte/forschungsprogramm-wald-und-klimawandel.html

Relations

Spatial

Schweiz

Related datasets

Documentation

Keywords

Terms of use

NonCommercialAllowed-CommercialAllowed-ReferenceNotRequired

Metadata Access

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