Title: The conservation index as a control instrument of space utilisation in the Upper Cikapundung Watershed of Indonesia

Authors: Mariana Marselina; Indragiri Jatikusuma; Arwin Sabar

Addresses: Faculty of Civil and Environmental, Institut Teknologi Bandung, Indonesia ' Faculty of Civil and Environmental, Institut Teknologi Bandung, Indonesia ' Faculty of Civil and Environmental, Institut Teknologi Bandung, Indonesia

Abstract: The development of settlements north of Bandung City in Indonesia is changing the upstream Cikapundung Watershed. Construction in the Cikapundung Watershed between 1997 and 2011 was 50.58 ha/year and the deforestation was 18.3 ha/year. The conservation index showed that the change in land use from 1997 to 2011 will made critical area increased around 62.48 ha/year. The area condition was assessed by comparing the actual conservation index (Ikc) and the natural conservation index (Ika). This indicates that there was degradation of the land's hydrological function (IKc < IKa) in the Upper Cikapundung Watershed area. In 1997, 2001, 2005, and 2011 the IKc was less than IKa forest (0.9-0.8) or IKa Hassing (0.73). To preserve the hydrological function of the Upper Cikapundung Watershed area, a linkage between space utilisation and hydrological conditions of the land is needed.

Keywords: actual conservation index; natural conservation index; spatial; land use change; Indonesia.

DOI: 10.1504/IJHST.2020.106508

International Journal of Hydrology Science and Technology, 2020 Vol.10 No.2, pp.148 - 166

Received: 28 Dec 2018
Accepted: 30 Aug 2019
Published online: 09 Apr 2020 *

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