Zheng Duan
Biträdande universitetslektor
Impacts de l’utilisation des sols et de la variabilité climatique sur les composantes hydrologiques dans le bassin du fleuve Johor, en Malaisie
Impacts of land-use and climate variability on hydrological components in the Johor River basin, Malaysia
Författare
Summary, in English
Abstract: This study aims to investigate separate and combined impacts of land-use and climate variability on hydrological components in the Johor River Basin (JRB), Malaysia. The Mann-Kendall and Sen’s slope tests were applied to detect the trends in precipitation, temperature and streamflow of the JRB. The Soil and Water Assessment Tool (SWAT) was calibrated and validated using measured monthly streamflow data. The validation results showed that SWAT was reliable in the tropical JRB. The trend analysis showed that there was an insignificant increasing trend for streamflow, whereas significant increasing trends for precipitation and temperature were found. The combined (climate + land-use change) impact caused the annual streamflow and evaporation to increase by 4.4% and 1.2%, respectively. Climate (land-use) raised annual streamflow by 4.4% (0.06%) and evaporation by 2.2% (−0.2%). Climate change imposed a stronger impact than land-use change on the streamflow and evaporation. These findings are useful for decision makers to develop better water and land-use policies. Editor Z. W. Kundzewicz; Guest editor V. Krysanova
Publiceringsår
2015-05-04
Språk
Franska
Sidor
873-889
Publikation/Tidskrift/Serie
Hydrological Sciences Journal
Volym
60
Issue
5
Dokumenttyp
Artikel i tidskrift
Förlag
Taylor & Francis
Ämne
- Oceanography, Hydrology, Water Resources
Nyckelord
- climate change
- evaporation
- hydrology
- Johor River
- land-use change
- Malaysia
- Mann-Kendall
- Sen’s slope
- streamflow
- SWAT
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0262-6667