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Exploring the impact of climate and land use changes on streamflow trends in a monsoon catchment

Exploring the impact of climate and land use changes on streamflow trends in a monsoon catchment
Exploring the impact of climate and land use changes on streamflow trends in a monsoon catchment
Flooding appears to be increasing in Kelantan, Malaysia, in terms of frequency as well as magnitude. This is likely to be due to changes in precipitation, but may also be contributed to by land use change. The Mann–Kendall
non-parametric method was used to test for trends in streamflow and precipitation at the 90% significance level.

Several significant trends in streamflow were found for the upstream (River Galas) and downstream (River Kelantan) sub-catchments for all variables (annual, seasonal and monthly time-series). In particular, streamflow increased in all seasons in the upstream sub-catchment, but increased in the wet season and decreased in the dry season downstream.

Several trends were also observed for precipitation. Precipitation trends were increasing in the wet season and decreasing in the dry season for both upstream and downstream sub-catchments. Analysis of land use change revealed that most changes occurred through conversion of forest to agricultural land (i.e. rubber and oil palm), predominantly in the upstream sub-catchment.

The analysis suggests a clear association between streamflow change and precipitation change, but also reveals that land use change may be an important contributing factor, particularly in the upstream sub-catchment.
climate change, stream flow change, precipitation change, land use change, time-series, trend analysis
815-831
Adnan, Nor Aizam
21a5324d-3df1-424b-8f7b-7922fff09893
Atkinson, Peter M.
96e96579-56fe-424d-a21c-17b6eed13b0b
Adnan, Nor Aizam
21a5324d-3df1-424b-8f7b-7922fff09893
Atkinson, Peter M.
96e96579-56fe-424d-a21c-17b6eed13b0b

Adnan, Nor Aizam and Atkinson, Peter M. (2011) Exploring the impact of climate and land use changes on streamflow trends in a monsoon catchment. International Journal of Climatology, 31 (6), 815-831. (doi:10.1002/joc.2112).

Record type: Article

Abstract

Flooding appears to be increasing in Kelantan, Malaysia, in terms of frequency as well as magnitude. This is likely to be due to changes in precipitation, but may also be contributed to by land use change. The Mann–Kendall
non-parametric method was used to test for trends in streamflow and precipitation at the 90% significance level.

Several significant trends in streamflow were found for the upstream (River Galas) and downstream (River Kelantan) sub-catchments for all variables (annual, seasonal and monthly time-series). In particular, streamflow increased in all seasons in the upstream sub-catchment, but increased in the wet season and decreased in the dry season downstream.

Several trends were also observed for precipitation. Precipitation trends were increasing in the wet season and decreasing in the dry season for both upstream and downstream sub-catchments. Analysis of land use change revealed that most changes occurred through conversion of forest to agricultural land (i.e. rubber and oil palm), predominantly in the upstream sub-catchment.

The analysis suggests a clear association between streamflow change and precipitation change, but also reveals that land use change may be an important contributing factor, particularly in the upstream sub-catchment.

Full text not available from this repository.

More information

e-pub ahead of print date: 11 March 2010
Published date: May 2011
Keywords: climate change, stream flow change, precipitation change, land use change, time-series, trend analysis
Organisations: Global Env Change & Earth Observation

Identifiers

Local EPrints ID: 150987
URI: https://eprints.soton.ac.uk/id/eprint/150987
PURE UUID: 311e3d94-9f8a-47f1-8864-4014a6c2e117
ORCID for Peter M. Atkinson: ORCID iD orcid.org/0000-0002-5489-6880

Catalogue record

Date deposited: 06 May 2010 15:31
Last modified: 29 Oct 2019 02:06

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Contributors

Author: Nor Aizam Adnan
Author: Peter M. Atkinson ORCID iD

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