ANALISIS KONDISI KANOPI DAN DINAMIKA FRAGMENTASI TAHUN 1991 - 2021 MENGGUNAKAN CITRA SATELIT LANDSAT DI KORIDOR HALIMUN SALAK

• Main Author: Rizky Darmawan, Muhammad
• Format: Final Project
• Language: Indonesia
• Subjects: Ilmu hayati ; Biologi
• Online Access: https://digilib.itb.ac.id/gdl/view/55264
• Institution: Institut Teknologi Bandung

Halimun Salak Corridor (KHS) is part of Mount Halimun Salak National Park which has a function as a biodiversity link between Mount Halimun and Mount Salak. KHS is severely affected by fragmentation due to the expansion of agricultural land and the dominance of invasive species such as calliandra. Another problem is contours that complicate accessibility and the very wide coverage of KHS makes direct monitoring of KHS difficult. This study aims to determine level of connectivity of KHS canopy and determine fragmentation pattern of KHS during 1991 – 2021 to see corridor vulnerability. This study uses Forest Canopy Density (FCD) model for canopy density analysis and Landscape Fragmentation Tool for forest fragmentation dynamics. FCD is an integration of Advanced Vegetation Index (AVI), Bare Soil Index (BI), Shadow Index (SI), and Thermal Index (TI) which can show tree canopy condition. LFT is a feature that can indicate fragmentation conditions. The images used for FCD are Landsat 8 images, while the images used for LFT are Landsat 5, 7 and 8. The results of the canopy density analysis show that AVI has a value range of 0.322 – 0.828, BI 53.045 – 123,786, SI 0.823 – 0.940, and TI 18,208 – 26,393. The results of integration four indices as FCD show that KHS is dominated by low class which is a mixture of shrubs and young shrubs that are rather dense with an area of 1030.95 hectares and medium class which is a mixture of shrubs and young thickets of dense forest covering an area of 873.27 hectares, while very high, which is an old dense thicket forest, only has an area of 48.33 ha of the total 2664.64 ha of KHS area. The dominance of low and medium classes represents poor KHS connectivity. For fragmentation dynamics, the results show that there are three phases that occur during the period 1991 – 2021. The declining phase in 1991 – 2006 when the core decreased from 2246.14 ha to 920.43 ha, the increasing phase in 2006 – 2016 when the core increased from 920.43 ha to 1209.24 ha, and returned to the decline phase in 2016 – 2021 when the core again decreased from 1209.24 to 944.55 ha. Overall, KHS is vulnerable because it experiences an increasing pattern of fragmentation from 1991 to 2021.