Claim Missing Document
Check
Articles

Found 2 Documents
Search

Aplication Multi Vegetation Index to Mapping Magrove Distribution Coast Environtment Northeast Province of Aceh, Indonesia Hanif, Muhammad; Adam, Tommy
Sumatra Journal of Disaster, Geography and Geography Education Vol 1 No 1 (2017): Sumatra Journal of Disaster, Geography and Geography Education
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (853.331 KB) | DOI: 10.24036/sjdgge.v1i1.42

Abstract

The mangrove such forest very important at coastal ecosystem and environment. The purpose of the research to mapping mangrove distribution at the coast environment using multi vegetation index, comparison accuracy assessment to mapping mangrove area. The method of the research use by multi imagery transformation as NDVI, Infrared II, SAVI, EVI and Maximum Likelihood. Data on the research have using by Landsat OLI8, tools use by ENVI 5.0 and ArcGIS 10.1. Optimizing the used of data from Landsat satellite imagery for mapping mangrove found where sharper appearance mangrove area in the gray scale image of the results of the analysis of vegetation transformation NDVI, Infrared II, SAVI and EVI showing difference specification, but also found has founded difference objects of interpreted it was showing like shadows of cloud be the another object. To classification on mangrove object is seen from the results of density slicing of transformation value to classing vegetation. The percentage accuracy of image prove some dominant image transformation is able to indicate a more optimal mangrove and mangrove separating the object is not present, but the accuracy of the data analysis result has variations, refers to the number of samples used
Ecosystem Restoration and Conservation in Singkarak Lake Protection Area: Impacts of Reclamation Adam, Tommy; Muhammad, Hanif; Randa, Ilham Gusri
BIODIVERS - BIOTROP Science Magazine Vol. 5 No. 1 (2026): BIODIVERS Volume 5 No. 1 (2026)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2026.5.1.2855

Abstract

Reclamation and landfilling activities within protected zones pose serious threats to ecosystem sustainability by altering natural land–water interactions and violating the essential functions of Singkarak Lake’s riparian buffer. This study aims to map the extent of reclamation, examine legal violations related to spatial and environmental permits, and assess ecological and economic losses. A mixed-methods approach was used, including geospatial analysis, normative legal review, and ecocentric valuation of environmental damage. Results show that 2,976 m² of land was illegally reclaimed within the protected lake boundary. Overlay with the regional spatial plan confirms non-compliance with zoning regulations and the absence of required permits. The total estimated loss amounts to Rp 3,383,291,152, largely driven by disrupted hydrological functions and reduced land utility.