Analisis Spasial Deforestasi untuk Perencanaan Rehabilitasi Hutan dan Lahan di KPH XII Tarutung Unit XX, Kabupaten Tapanuli Utara, Provinsi Sumatra Utara

Abstract

This study aims to analyze the rate of deforestation in KPH XII Tarutung Unit XX and formulate effective rehabilitation planning strategies. The methods used include mapping land cover changes using satellite imagery from the years 2013 and 2023. Deforestation data were analyzed over a tenyear period to identify patterns and key factors contributing to forest degradation. The results indicate that deforestation in KPH XII Tarutung Unit XX is primarily caused by activities such as agricultural expansion, population increase, and others. The area of forest lost during this period reached 11% of the total KPH XII Tarutung Unit XX area. Based on this study, several rehabilitation measures are recommended. One consideration for rehabilitation is the level of landslide susceptibility. The method used to analyze landslide susceptibility involves summing or scoring four parameters: land use, slope, rainfall, and soil type. The results of the landslide susceptibility analysis show that 67.78% of the area is classified as not susceptible, 29.45% as susceptible, and 2.77% as highly susceptible, with the total area being 67,781 hectares. The method used for prioritizing rehabilitation involves summing or scoring five parameters: landslide susceptibility, land use, distance from roads, distance from settlements, and distance from rivers. The area prioritized for rehabilitation reaches 8,458.36 hectares. Based on the above analysis, rehabilitation planning should include replanting native species, strengthening forest protection policies, and increasing community participation in rehabilitation activities.