Marine debris is a solid material that is either accidentally or accidentally disposed of in a river that empties into the sea or is left directly in the sea. The research on marine debris is carried out in the estuary and mangrove forest areas of Kendari Bay which is assumed to be accommodated garbage sites that enter the coastal area. The purpose of this study is to identify the types of composition and potential sources of marine waste contributors found in several river estuaries and mangrove forest areas, to know the density of marine debris and to mapping the distribution of marine debris from several river estuaries and mangrove forest in Kendari Bay. This research was conducted by survey method and using 5x5 quadratic plots in a random sampling. The data obtained were analyzed statistically and map overlays. The results showed that the composition of marine debris types in mangrove ecosystems and estuaries in Kendari bay generally consisted of plastic (plastic bottles, plastic bags, ropes, pipettes, plastic cups), metals (beverage cans), rubber, glass (glass bottles) and others (cloth, paper and others) with the dominant amount of plastic waste. The highest total density of waste types in the four locations in the mangrove ecosystem and river estuary in Kendari Bay is at station 1 (Lahundape Mangrove Tracking Area). The density of plastic waste dominates the four locations in the mangrove ecosystem with the highest value of 3,024 items/m2 in the mangrove ecosystem around the estuary of Mandonga and Lahundape. The high distribution of marine debris in the mangrove ecosystem is found at station 1 and station 2 because it is directly related to the river flow which contributes greatly to marine debris input in Kendari Bay.

Kendari City has multiple disasters hazard, especially floods and landslides. Consequently, the city requires systematic preventive efforts to minimize the potential disaster risk. This study aims to create a spatial model to determine the resilience of the land against floods and landslides with an ecosystem services approach. We used Sentinel-2 and DEMNAS (National Digital Elevation Model of Indonesia) as our primary data collection tools. Sentinel-2 was used to compile land use maps, and DEMNAS was the basis for compiling landform maps. The integration of the two was carried out by the analytic hierarchy process (AHP). The results showed that 8,259.98 acres (30.01 percent) of land in Kendari had low resilience to disasters. Those areas are located in a residential area on the TWH (Rocky hill over mixed sedimentary rocks) and KHY (Coalescent estuarine/riverine plain) landforms. The dominant disaster hazard in the area is inundation flooding that occurs almost every year in Kendari. Poor soil infiltration capacity is one factor affecting the area become vulnerable to flooding.

Abstrak: Pariwisata adalah segala hal yang berhubungan dengan perjalanan untuk rekreasi, pelancongan, dan hiburan yang dilakukan dengan sukarela dan bersifat sementara serta didukung oleh berbagai fasilitas dan layanan yang disediakan oleh masyarakat, pengusaha, dan pemerintah daerah. Penelitian ini bertujuan untuk: (1) mengetahui kondisi lingkungan kegiatan pariwisata di Kecamatan Nambo; (2) mengetahui daya dukung lingkungan pariwisata Di Kecamatan Nambo. Metode dalam penelitian ini adalah metode penelitian kuantitatif. Metode penelitian kuantitatif digunakan untuk menjawab tujuan penelitian yaitu mengetahui kondisi lingkungan kegiatan pariwisata dan menganalisis daya dukung lingkungan pariwisata pantai di Kecamatan Nambo. Hasil penelitian menunjukkan bahwa: (1) Pantai Nambo merupakan Pantai yang terdiri dari pasir putih dengan topografi yang tidak curam,memiliki suasana yang tenang, udara yang dingin dan pemandangan yang indah. Pantai Nambo sendiri telah menyediakan fasilitas seperti tempat parkir, gazebo, tempat bilas mandi  dan tempat sampah. Namun masih terdapat pengunjung yang membuang sampah sembarangan sehinggah mengotori lingkungan  Pantai Nambo;  (2) Berdasarkan perhitungan daya dukung lingkungan objek wisata Pantai Nambo, maka diperoleh nilai daya dukung fisik (PCC) atau jumlah maksimum wisatawan yang dapat diterima di area wisata dengan luas 10,3 ha sebesar 3.961 wisatawan/hari dengan  nilai kapasitas manajemen (MC) sebesar 0,54 dan nilai daya dukung efektif (ECC) sebesar 2.138 wisatawan/hari dengan mempertimbangkan nilai PCC dan MC.Kata kunci: Analisis, Daya Dukung, Kawasan Wisata PantaiAbstract: Tourism is all things related to travel for recreation,travel, and entertainment which is carried out on a voluntary basis and is temporary andsupported by various facilities and services provided by the community,entrepreneurs, and local governments. This study aims to: (1) determine the conditionsthe environment of tourism activities in Nambo District, (2) know the carrying capacitytourism environment in Nambo district. The method in this research is quantitative research methods.Quantitative research method is  used to answer objectivesresearch, namely knowing environmental conditions of tourism activities and analyzing carrying capacity of the coastal tourism environment in Nambo District.The results showed that: (1) Nambo Beach is a beach consisting of white sand with a topography that is not steep, has a calm atmosphere, cold air and beautiful scenery. Nambo Beach itself has provided facilities such as parking, gazebo, shower and trash cans. But there are still visitors who throw garbage carelessly so that they pollute the neighborhood of Nambo;(2) Based on the calculation of the environmental carrying capacity of the Nambo Beach tourist attraction,then obtained the value of the physical carrying capacity (PCC), the maximum number of touristswhich can be accepted in the tourist area with an area of 10.3 acre for 3,961 tourists/daywith a value of management capacity (MC) of 0.54 and an effective carrying capacity (ECC) of 2,138 tourists/day by considering the value of PCC and MC.Keywords: Analysis, Carrying Capacity, Beach Tourism Area

Landslide investigation in Laeya Village of North Buton Regency, Indonesia, is necessary since this area is frequently experiencing landslides. In this study, we applied a joint analysis of interferometric synthetic aperture radar (InSAR), electrical resistivity tomography (ERT), and in-situ geology observation. The objectives of this multidisciplinary study are: a) to estimate ground deformation through the InSAR method, b) estimation of subsurface characteristics based on the electrical resistivity of rocks, as well as estimation of the shape of the slip plane and the type of landslide that resulted; and c) to identify the surface geology conditions of the site from an in-situ geology survey. The InSAR data of the Sentinel-1A acquired from 2015 to 2017 were processed using the Sentinel toolbox. The resistivity data collected utilizing the electrodes array of the Wenner-Schlumberger configuration were processed employing the RES2DINV. The in-situ geology survey involving the observation of elevation, slope, and soil and rock type was also carried out in the landslide area. The InSAR method may estimate the deformation of slope material of the investigated sites with a magnitude ranging from -53 mm to +55 mm. The negative mark of the magnitude means that the ground deformation is ground subsidence and the positive means ground uplift. The ERT method has successfully estimated the existence of the saturated zones, the clay layer that acts as a slip plane, and the slip surface type. There are at least two types of slip planes estimated, namely the planar and uneven curvature slip planes that generate the translational and the complex landslides, respectively. In-situ observations of geological conditions support the results obtained from the InSAR and ERT methods.

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