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ANALISIS SEBARAN TUTUPAN VEGETASI MENGGUNAKAN CITRA LANDSAT 8 DI KECAMATAN ULUJADI KOTA PALU Hangu, Nurhadi S. Laode; Akhbar, .; Arianingsih, Ida
Jurnal Warta Rimba Vol 6, No 1 (2018)
Publisher : Universitas Tadulako

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Abstract

Ulujadi is one of sub-district in Palu city which continues opening new lands for residential areas as well as sand and stone quarry, consequently the distribution of existing vegetation to be reduced. Along with the continued occurrence, conversion of existing land in urban areas particularly in Ulujadi Sub-District. Therefore, it is necessary to do extensive research to analyze the extent of vegetation cover distribution. Distribution of vegetation analysis was carried out using a descriptive method of photogrammetry approachment was image interpretation that executed digitally to obtain data and information of vegetation cover distribution by utilizing Landsat 8 image directly on the computer monitor of software ArcGIS 10,2 supervised classification. Vegetation index is counted NDVI (Normalized Difference Vegetation Index) by utilizing band 5 (Infrared) and band 4 (Red) of Landsat 8. The result of analysis of vegetation distribution used Landsat 8 image of 2016 path/row 115/61 at Ulujadi Sub-District of Palu City, obtained land which vegetated of width 5222,47 Ha or 82,04 % and unvegetated land 1143,28 Ha or 17,96 %. Vegetation distribution at Ulujadi that consists forest land, shrubs and savanna each has extensive are forest (1498,79 Ha or 23,54 %), shrubs ((3704,23 Ha or 58,19 %) and savanna (19,45 Ha or 0,31 %). NDVI value at Ulujadi has a value between -0,13 - 0,6. The NDVI value for sparse canopy density class has large-scale of 358,16 Ha (6,86 %), medium canopy density has large-scale 856,16 Ha (16,39 %), while the dense canopy density has large-scale 4.008,15 Ha (76,75 %).Keywords : Vegetation Distribution, Landsat 8 Image, Ulujadi Sub-District
Tingkat Erosi Berbasis Data Spasial di Das Taipa Kota Palu Palar, Eddy Sugandi; Akhbar, .; Arianingih, Ida
Jurnal Warta Rimba Vol 6, No 2 (2018)
Publisher : Universitas Tadulako

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This the study was conducted in Taipa, Palu Utara Regency of Palu City. The aims of this study to identify the attrition rate based on slope and river flow pattern used SPOT 6 of 2014 in Taipa watersheds. Method of the study was classification technique of image SPOT-6 2014, which to classify the river flow patterns and the gradual slope to find out the level of erosion in Taipa watersheds, Palu Utara Regency of Palu City. The results of calculation through image SPOT 6 of 2014 along with data covering this study that a very large erosion rate occurs at level 3 is 1181,02 ha, which is based on the relationships between slope classes and river flow. Based on data analysis of Rate of Erosion Hazard (TBE) the greater value of erosion rate then greater also the erosion hazard, so that the appropriate action is needed to reduce the level of erosion hazard in order to minimize the extent of changes that might occur. The value of X2 = 60.398,37, T table = 32.000, then 60.398,37 > 32.000 = Ha is accepted. Based on T counted and T table, then it can be found there is a correlation between the rate of erosion and slope classes used image SPOT 6. It can be stated that T counted is greater than T table. This correlation is based on the assumption that the other variables are same, which different only the slope. If the other variables are not similar, for examples rockresistance or the different land cover, then the correlation would be different also.Keywords: Erosion Rate, Spasial Data, Watersheds Taipa