Quantifying relative contribution of land use change and climate change to streamflow alteration in the Bengawan Solo River, Indonesia

Hero Marhaento*, Martijn J. Booij, Naveed Ahmed

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

This study investigated the influence of land use change and climate change on changes in streamflow in the Bengawan Solo River (BSR, 16 389 km2) basin, Indonesia. We applied the excess water and energy approach to three tributaries of the BSR, namely Pidekso, Madiun and Kening rivers, which represent the up-, mid-, and downstream parts of the BSR, respectively. This study used hydrological data from 1982−2013 and land use data for the years 1994 and 2013. The results show that from 1982 to 2013, the annual streamflow of the Pidekso and Madiun River increased, while in the Kening River it decreased. Based on attribution measures, the increasing streamflow trend in the Pidekso and Madiun rivers is mainly attributed to land use change, while the decreasing streamflow trend in the Kening River is mainly attributed to climate change. These conclusions are supported by statistical analyses and land use change analysis.
Original languageEnglish
Pages (from-to)1059-1068
Number of pages10
JournalHydrological sciences journal
Volume66
Issue number6
Early online date20 May 2021
DOIs
Publication statusPublished - 2021

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