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Assessing the Relationship Between Land Surface Temperature and Vegetation Index During Revegetation Activities: A Remote Sensing Study on Berau Regency, East Kalimantan (2015-2021) Nisaa', Ratri Ma'rifatun; Sari, Ulfah Karmila
Media Konservasi Vol. 30 No. 2 (2025): Media Konservasi Vol 30 No 2 May 2025
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.30.2.262

Abstract

Coal mining, particularly open-pit mining methods, induces severe environmental degradation, including deforestation, loss of flora and fauna, and soil erosion. Consequently, extensive revegetation efforts are necessary to restore and rehabilitate the damaged vegetation. This study uses remote sensing techniques to investigate the correlation between land surface temperature (LST) and vegetation density over six years of revegetation activities. Temporal Landsat 8 imagery from 2015 to 2021 was used for data analysis. Image processing involved transforming the Normalized Difference Vegetation Index (NDVI) and extracting LST data. Statistical correlation analysis using Pearson correlation was employed to analyze the data. Results indicate a notable decline in land surface temperature at the project site from 2015 to 2021, attributed to the gradual reduction of open spaces from coal mining activities, which were gradually replaced by vegetation cover. Concurrently, NDVI values at the site significantly increased over the same period, indicating the successful transition from barren land to vegetated land. Moreover, a substantial correlation between LST and NDVI values was observed, as denoted by Pearson coefficient exceeding 0.7, with a strong negative correlation. This underscores the significant relationship between vegetation cover and land surface temperature dynamics. These findings emphasize the effectiveness of revegetation efforts in mitigating the adverse impacts of coal mining on the environment. They highlight the crucial role of remote sensing in monitoring and assessing the progress of rehabilitation activities, guiding future revegetation strategies for sustainable land management and ecosystem restoration.
Vegetation Structure, Composition, and Soil Properties of Dry Land on Islands in Balikpapan Bay, East Kalimantan Sayektiningsih, Tri; Sitepu, Bina Swasta; Yassir, Ishak; Sari, Ulfah Karmila; Mukhlisi, Mukhlisi; Ma'ruf, Amir
Jurnal Biodjati Vol 5 No 2 (2020): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v5i2.6434

Abstract

   Some small islands in Balikpapan Bay consist of dry land which may have different vegetation structure and composition. Our study was the first to uncover vegetation conditions and soil proper-ties of dry land on small islands in Balikpapan Bay, which has never been conducted before. The research was carried out on Kalawasan and Karantina islands. Information on vegetation was obtained by applying a line transect method. Data on soil properties were col-lected by setting up 3 sampling plots in each transect of vegetation. Parameters used for analysing vegetation including relative densi-ty, relative frequency, relative dominance, Shannon-Wiener diversi-ty index, evenness index, and similarity index. Meanwhile, data on soils were analysed descriptively. Trees on Kalawasan island were comprised of 241 individuals belonging to 21 species. There were 61 individuals (22 species) of trees on Karantina island. The diver-sity index of trees on Kalawasan and Karantina island was 2.55 and 2.72, respectively. The tree evenness index was 0.84 on Kalawasan island and 0.88 on Karantina island. The index of similarity for trees between the two islands was 0.21. Furthermore, the soil character-istics on Kalawasan and Karantina islands showed similarities. In general, soil in Kalawasan and Karantina islands could be catego-rised as marginal soil which was common in East Kalimantan. Con-sidering the rapid loss of tropical forests in the mainland of Kali-mantan indicates that the small islands of Balikpapan Bay play an important role in future biodiversity conservation in East Kalimantan.Â