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Climate change or irrigated agriculture – what drives the water level decline of Lake Urmia

Schulz, Stephan and Darehshouri, Sahand and Hassanzadeh, Elmira and Tajrishy, Massoud and Schüth, Christoph (2020):
Climate change or irrigated agriculture – what drives the water level decline of Lake Urmia.
In: Scientific Reports, 10, (1), Springer Nature, ISSN 2045-2322,
DOI: 10.25534/tuprints-00011396,
[Online-Edition: https://doi.org/10.1038/s41598-019-57150-y],
Secondary publishing via sponsored Golden Open Access, [Article]

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Item Type: Article
Origin: Secondary publishing via sponsored Golden Open Access
Title: Climate change or irrigated agriculture – what drives the water level decline of Lake Urmia
Language: English
Abstract:

Lake Urmia is one of the largest hypersaline lakes on earth with a unique biodiversity. Over the past two decades the lake water level declined dramatically, threatening the functionality of the lake’s ecosystems. There is a controversial debate about the reasons for this decline, with either mismanagement of the water resources, or climatic changes assumed to be the main cause. In this study we quantified the water budget components of Lake Urmia and analyzed their temporal evolution and interplay over the last five decades. With this we can show that variations of Lake Urmia’s water level during the analyzed period were mainly triggered by climatic changes. However, under the current climatic conditions agricultural water extraction volumes are significant compared to the remaining surface water inflow volumes. Changes in agricultural water withdrawal would have a significant impact on the lake volume and could either stabilize the lake, or lead to its complete collapse.

Journal or Publication Title: Scientific Reports
Journal volume: 10
Number: 1
Publisher: Springer Nature
Classification DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften
Divisions: 11 Department of Materials and Earth Sciences > Earth Science
Date Deposited: 24 Jan 2020 12:04
Last Modified: 20 Apr 2020 09:08
DOI: 10.25534/tuprints-00011396
Official URL: https://doi.org/10.1038/s41598-019-57150-y
URN: urn:nbn:de:tuda-tuprints-113967
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/11396
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