Indonesian Journal of Geography
Vol 45, No 1 (2013): Indonesian Journal of Geography

ASSESSING THE EFFECTS OF LAND USE CHANGE ON RUNOFF IN BEDOG SUB WATERSHED YOGYAKARTA

Aris Prasena (Unknown)
D.B. Pikha Shrestha (Unknown)



Article Info

Publish Date
03 Sep 2013

Abstract

The study was to assess the effects of land use change on runoff in the Bedog sub watershed.Soil and Water Assessment Tool-Water Balance (SWAT-WB) hydrological modeling was usedto predict runoff for years of 2001, 2006, and 2010. Land use in Bedog has rapidly changedin last few decades due to agglomeration process in Yogyakarta City. Coverage of mixedgarden decreased during period of 2001-2010 despite still as predominant land use in total.On the other side, change detection analysis revealed that there was an increase ofsettlements coverage from 9.51% to 13.79% in the same period. Sensitivity analysis revealedthat soil properties were the most sensitive parameters on runoff generation. Calibration wasperformed for years of 2001, 2006, and 2010 and the result shows an acceptableperformance in runoff simulation. Changes in land use were responsible for an increase inthe annual runoff between 3.42% – 4.67%. This study showed that dynamics of runoff can bepredicted by forecasting and simulating future land use.

Copyrights © 2013






Journal Info

Abbrev

ijg

Publisher

Subject

Earth & Planetary Sciences

Description

Indonesian Journal of Geography ISSN 2354-9114 (online), ISSN 0024-9521 (print) is an international journal of Geography published by the Faculty of Geography, Universitas Gadjah Mada in collaboration with The Indonesian Geographers Association. Our scope of publications includes physical geography, ...