Forest and Society
Vol. 6 No. 1 (2022): APRIL

A Diversity Index Model based on Spatial Analysis to Estimate High Conservation Value in a Mining Area

Siti Halimah Larekeng (Faculty of Forestry, Universitas Hasanuddin, Makassar, Indonesia)
Munajat Nursaputra (Faculty of Forestry, Universitas Hasanuddin, Makassar, Indonesia)
Nasri Nasri (Faculty of Forestry, Universitas Hasanuddin, Makassar, Indonesia)
Andi Siady Hamzah (Faculty of Forestry, Universitas Hasanuddin, Makassar, Indonesia)
Andi Subhan Mustari (Faculty of Engineering, Universitas Hasanuddin, Gowa, Indonesia)
Abdur Rahman Arif (Faculty of Mathematics and Natural Sciences, Universitas Hasanuddin, Makassar, Indonesia)
Aris Prio Ambodo (Vale Indonesia, East Luwu, Indonesia)
Yohan Lawang (Vale Indonesia, East Luwu, Indonesia)
Andri Ardiansyah (Vale Indonesia, East Luwu, Indonesia)



Article Info

Publish Date
17 Jan 2022

Abstract

Large scale land-based investments have a significant impact on natural resources and environmental conditions. It is necessary to protect areas of high conservation value (HCV) within land management investments, such as the mining sector, to minimise this impact. The existence of high conservation value sites in locations with activities related to the mining sector is intended to maintain the ecological and conservation value of a mining investment area. We demonstrate a model that can identify potential high conservation value sites in mining areas using remote sensing data and spatial analysis compiled with field observation data. The research was conducted in one of the largest nickel mining areas (71,047 ha) in South Sulawesi, Indonesia. We mapped vegetation density using the normalized difference vegetation index (NDVI), calculated from Sentinel-2 imagery. We also collected biodiversity data in predetermined inventory sampling plots, which we then used to estimate species richness using the Shannon-Wiener diversity index. Using a linear regression model to compare the normalized difference vegetation index value in each sampling plot with the biodiversity value of flora and fauna, we then estimated biodiversity distribution patterns for the entire study area. We found that potential high conservation value areas (areas likely to have high biodiversity based on our regression model) covered 40,000 ha, more than half of the total concession area.

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Journal Info

Abbrev

fs

Publisher

Subject

Agriculture, Biological Sciences & Forestry Environmental Science Social Sciences

Description

Forest and Society is an international and interdisciplinary journal, which publishes peer-reviewed social, political and economic research relating to people, land, and forests. Forest and Society has main geographic focus on Southeast Asia but we do not limit research possibilities that compare ...