Characterization of hydrological aspects in Kolong Enam Retention Basin, Kijang, Bintan Island, Indonesia

H.A Haridhi,Syafruddin Syafruddin,Zulkarnain Zulkarnain,Z Md Nor,Muhammadar Muhammadar,Andi Zulfikar,M Irham,Tri Apriadi,Wahyu Muzammil,N Fadli,M.N Badu,Deni Sabriyati,Winny Retna Melani,D.H Yen,Muhammad Muhammad

doi:10.1051/e3sconf/202233902010

Abstract

Bintan Island in the Riau Islands Province is classified as a small island (±1170 km2) with limited freshwater resources. The availability of raw water on Bintan Island will certainly be determined by the characteristics of hydrobiological aspects of Bintan Island. Fulfillment of freshwater needs is carried out through the creation of raw water shelters in the form of reservoirs, pond, retention basin, dams, or abandoned bauxite mining pits. One of the raw water sources on Bintan Island is Kolong Enamretention basin. This study aims to examine the hydrological aspects of Kolong Enam retention basin in Bintan Island. The main data used in this study is digital elevation model (DEM) to extract hydrobiological aspects on Bintan Island. In our study found that Bintan Island has nine sub-watersheds. Kolong Enam retention basin is located in the catchment area of Gunung Lengkuas, East Bintan District. The catchment area of Kolong Enam retention basin has an area of 1067,31 ha, which consists of 3 river orders. With regard to vegetation coverage from 2000-2018, it is indicated that there has been a decrease in vegetation coverage in the Kolong Enam retention basin water catchment area.

Highlights

Bintan Island is determined by the government as a National Strategic Industrial Estate based on Presidential Regulation No 87 of 2011, will have implications for increasing the demand for raw water needs
Bintan Island is categorized as a small island, development on Bintan Island, especially in Kijang City, begins with the rapid development of the mining sector such as granite and bauxite
This study aims to examine the hydrological characteristics of Kolong Enam retention basin on Bintan Island based on digital elevation model (DEM) analysis

Summary

Introduction

Bintan Island is determined by the government as a National Strategic Industrial Estate based on Presidential Regulation No 87 of 2011, will have implications for increasing the demand for raw water needs. Characteristics of Bintan Island are categorized as small islands where that island is a post-bauxite mining area, [1, 7, 9, 13, 14, 15]is expected to have dynamic hydrological characteristics of existing reservoirs or water reservoirs. Small islands have very limited water catchment capacity and have specific hydrological conditions [5]. Bintan Island is categorized as a small island, development on Bintan Island, especially in Kijang City, begins with the rapid development of the mining sector such as granite and bauxite. The abandoned bauxite mining pits on Bintan Island has changed the land cover pattern a lot and left the post-mining tailings pond which is known by the local community as‘kolong’

Objectives

Methods

Conclusion