Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1007/s35147-021-0908-2 |
| Title (Primary) | Auswirkungen der Dürreverhältnisse 2018-2020 auf die Grundwasserstände in Mitteldeutschland. The effects of the record-setting drought from 2018 to 2020 on ground water tables in Central Germany |
| Author | Rinke, K.; Mietz, S.-C.; Schneppmüller, M. |
| Source Titel | WasserWirtschaft |
| Year | 2021 |
| Department | SEEFO |
| Volume | 111 |
| Issue | 11 |
| Page From | 49 |
| Page To | 56 |
| Language | deutsch |
| Topic | T5 Future Landscapes |
| Abstract | Die Jahre 2018-2020 waren außergewöhnlich trocken! Hiervon waren nicht
nur menschliche Nutzungen, wie Land- und Forstwirtschaft oder
Wasserversorgung, sondern auch der Naturraum, insbesondere aquatische
Ökosysteme, betroffen. Ein besonders stark getroffenes Gebiet ist
hierbei der mitteldeutsche Raum, der ohnehin durch geringe Niederschläge
und Grundwasserneubildung charakterisiert ist. Im Rahmen der Studie
wurden die Pegelstände von über 220 Grundwassermessstellen in
Mitteldeutschland untersucht und das historische Ausmaß des
Wasserdefizits aufgezeigt. A record-setting drought from 2018-2020 occurred in Germany! Severe adverse consequences affected not only anthropogenic purposes like agriculture, forestry, or water supply but also the corresponding natural systems, in particular aquatic ecosystems or wetlands. A key indicator of water availability at the landscape scale is the groundwater table, whose depth is influencing the access of terrestrial vegetation to water, the baseflow of rivers and the water level in groundwater-fed lakes and ponds. This study therefore studies the effects of the 2018-2020 drought on long-term dynamics of groundwater tables by analysing 30 years of groundwater dynamics in more than 220 gauges in central Germany. This region is particularly susceptible to droughts because it receives comparatively low annual precipitation and harbours the lowest groundwater recharge rates in whole Germany. We found severe reductions of groundwater tables down to historically low levels with more than 50 % of the gauges showing water tables below the 5% quantile based in the 30 years reference period. The decrease in groundwater was spatially consistent over the whole region though magnitude differed regionally. A strong trend of decreasing groundwater tables is already visible for 10 years in this region and the water deficit is estimated to be between 300 and 400 mm indicating a long recovery time, if ever recovering is realistic given the ongoing change in climatic conditions leading to higher water losses. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25314 |
| Rinke, K., Mietz, S.-C., Schneppmüller, M. (2021): Auswirkungen der Dürreverhältnisse 2018-2020 auf die Grundwasserstände in Mitteldeutschland. The effects of the record-setting drought from 2018 to 2020 on ground water tables in Central Germany WasserWirtschaft 111 (11), 49 - 56 10.1007/s35147-021-0908-2 |
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