Development of correlation-regression model between land use change and water quality indices in Ciliwung watershed

C Hamontree,Dwita Sutjiningsih,Yopy Arfan

doi:10.1051/matecconf/201819202047

Abstract

Urbanization and industrialization lead to the change of land cover from pervious into impervious. This can impact environmental problems such as water quality degradation that affects human health and water ecosystems. The study aimed to develop a regression-correlation model between impervious cover in Ciliwung watershed and water quality indices in Ciliwung river. The correlation-regression model can be used to predict changes in the status of Ciliwung river water quality due to impervious cover changes. Methods of assessing the indices of water quality are CCME-WQI, NSF-WQI, and STORET within the period of 2005-2016. Monitoring locations from the most upstream to downstream are Atta’awun, Katulampa, Kedung Halang, Pondok Rajeg, Panus Bridge, Kelapa Dua, Condet, Kalibata, MT Haryono and Manggarai. Impervious cover data for each water quality monitoring location is processed using ArcGIS Software. Test of correlation significance between percentage of impervious cover and water quality indices using Pearson Correlation test method. The result of correlation test is significantly a strong inverse relationship between impervious cover and water quality indices. The result of regression test is trend line between impervious cover change and water quality indices that can be used to predict the change of water quality status in Ciliwung River.

Highlights

The development of urbanization and industrialization resulted in increased the land cover from pervious to impervious
The rapid change of land into commercial building, residential, and agricultural areas that are not properly managed will produce waste water that impact on the decrease of river water quality
The increasing impervious cover resulted in environmental problems such as water quality degradation that affected human health and water ecosystem [2]

Summary

Introduction

The development of urbanization and industrialization resulted in increased the land cover from pervious to impervious. The rapid change of land into commercial building, residential, and agricultural areas that are not properly managed will produce waste water that impact on the decrease of river water quality. The increasing impervious cover resulted in environmental problems such as water quality degradation that affected human health and water ecosystem [2]. Impervious cover (IC) is one of the important factors that affect the water quality status [5, 6]. Impervious cover model at first was developed by Schueler (1994), that aim to find out how the impact of impervious cover toward various water quality and biotic indicators

Methods

Findings

Discussion

Conclusion