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| Titel |
An assessment of land use change impacts on the water resources of the Mula and Mutha Rivers catchment upstream of Pune, India |
| VerfasserIn |
P. D. Wagner, S. Kumar, K. Schneider |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 17, no. 6 ; Nr. 17, no. 6 (2013-06-19), S.2233-2246 |
| Datensatznummer |
250018902
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| Publikation (Nr.) |
 copernicus.org/hess-17-2233-2013.pdf |
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| Zusammenfassung |
| Land use changes are altering the hydrologic system and have potentially
large impacts on water resources. Rapid socio-economic development drives
land use change. This is particularly true in the case of the rapidly
developing city of Pune, India. The present study aims at analyzing past
land use changes between 1989 and 2009 and their impacts on the water
balance in the Mula and Mutha Rivers catchment upstream of Pune. Land use
changes were identified from three Rivers catchment multitemporal land use classifications
for the cropping years 1989/1990, 2000/2001, and 2009/2010. The hydrologic
model SWAT (Soil and Water Assessment Tool) was used to assess impacts on
runoff and evapotranspiration. Two model runs were performed and compared
using the land use classifications of 1989/1990 and 2009/2010. The main land
use changes were identified as an increase of urban area from 5.1% to
10.1% and cropland from 9.7% to 13.5% of the catchment area during
the 20 yr period. Urbanization was mainly observed in the eastern part and
conversion to cropland in the mid-northern part of the catchment. At the
catchment scale we found that the impacts of these land use changes on the
water balance cancel each other out. However, at the sub-basin scale
urbanization led to an increase of the water yield by up to 7.6%, and a
similar decrease of evapotranspiration, whereas the increase of cropland
resulted in an increase of evapotranspiration by up to 5.9%. |
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