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| Titel |
Water resource management in river oases along the Tarim River in North-West of China |
| VerfasserIn |
Lina Kliucininkaite, Markus Disse |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250071777
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| Zusammenfassung |
| Tarim River is one of the longest inland rivers in the world. It flows its water in the northern
part of the Taklamakan desert in Xinjiang, North-west of China, which is a very hostile
region due its climatic conditions and particularly due to low precipitation and very high
evaporation rates. During the past five decades intensive exploitation of water resources,
mainly by agricultural activities, has changed the temporal and spatial distribution of them
and caused serious environmental problems in the Tarim River Basin. The support measures
for oasis management along the Tarim River under climatic and societal changes became the
overarching goal of this research.
The temperature has risen by nearly 1Ë C over the past 50Â years in the Tarim
River Basin so more water was available in the mountainous areas of Xinjiang,
leading to an increasing trend of the headstream discharges of the Tarim Basin.
Aksu, Hotan and Yarkant Rivers are three tributaries of the Tarim River, as well as
its main water suppliers. However, under the condition of water increase with the
volume of 25Ã108 m3 in headstreams in recent 10 years, the water to the mainstream
has increased less than 108 m3 (in Alar hydrological station), which is less than
3% of the increased water volume of runoff. Moreover, the region is one of the
biggest cotton and other cash crops producers in China. In addition, expansion of
urban and, in particular, of irrigation areas have caused higher water consumption
at different parts of the river, leading to severe ecological effects on rural areas,
especially in the lower reaches. Moreover, it also highly affects groundwater level and
quality.
The aim of this research is to support decision makers, planners and engineers to find
right measures in the area for the further development of the region, as well as adaptation to
changing climate. Different scenarios for water resource management, as well as water
distribution and allocation in a more efficient and water-saving way, in order to obtain
optimal benefit for society, economy and natural environment in a sustainable manner, are
the target outcome of this research. Therefore, a more general approach is needed
for the macro and whole Tarim River (app. 1321Â km long) scale. For addressing
water allocation, conjunctive use, water quality issues and surface water interaction
with groundwater in this research, GIS-based water-balance model MIKE BASIN
(DHI) is employed to meet these objectives for the regional and Tarim River scale. |
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