Deforestation is an event of loss of forest cover to another cover. Sulawesi forests have the potential to be deforested as with Sumatra and Kalimantan. This study aims to provide information on deforestation events in Sulawesi from 1990 to 2018. The data used in this study are (1) land cover in 1990, 2000, 2010; (2) Landsat 8 imagery in 2018; (3) administrative map of BIG in 2018. The methods used are (1) image classification with on-screen digitation techniques following the PPIK land cover classification guidelines, Forestry Planning Agency (2008) using ArcGIS Desktop 10.6 from ESRI; (2) overlapping maps; (3) analysis of deforestation; (4) analysis of deforestation profiles, (5) vulnerability analysis; and (6) analysis of distribution patterns of deforestation. The results showed that the profile of deforestation occurring on Sulawesi Island in the 1990–2018 observation period was dominated by profile 3-1-1 (the proportion of large forest area, the highest incidence of deforestation early stage at the beginning, at a low rate) in 13 districts. The level of vulnerability to deforestation is a non-vulnerable category (37 districts) which is directed to become a priority in handling deforestation in Sulawesi. Spatial patterns of the deforestation that occurred randomly and were scattered are dominated by shrubs, dryland agricultural activities, and small-scale plantations.

The Riau Province has been suffering from the highest deforestation rate in Sumatra, Indonesia. Many and various factors haved been discussed as causes of different deforestation types. This research is focused on evaluating the spatial pattern of deforestation in a specific location respresenting a typical deforestation in Riau. The main objective of this study to identify spatial metrics to describe deforestation that occurred in Kampar and Indragiri was Hulu regencies.The study divided the deforestation process into 3 periods of observation, .

North Sumatra Province has the Tangkahan Nature Tourism Area, which represents ecotourism managed by local communities, established in 2001, which has now become the leading tourism destination of North Sumatra both locally and internationally. Tangkahan ecotourism is an example of payment for environmental services for the Tangkahan community, which initially carried out illegal logging in the mount Leuseur national park and then agreed to preserve the national park through ecotourism. This study aims to analyze the economic value of tourism and the preferences of tourists to revisit, along with the factors that influence them, where these conditions can be an illustration of the sustainability of Tangkahan ecotourism. The travel cost method is used to calculate the economic value of Tangkahan Ecotourism environmental services. The factors that affect the economic value, intensity of visits, and interest in revisiting, were analyzed using multiple linear regression. The results showed that Tangkahan ecotourism has a relatively high economic value, supported by the intensity and interest of tourist visits. Factors that affect the economic value and preferences of tourist visits can be managed for the sustainability of Tangkahan ecotourism so as not to lose the economic value of the ecotourism environmental services.

One of the causes of decrease forest functions is deforestation. Deforestation is a nonforest cover change activity that affects the decrease function of forest ecosystems. South Sulawesi and West Sulawesi Provinces are two areas that have experienced high deforestation. The area of forest in South and West Sulawesi in 1990 amounted to 2,550,946.13 ha. The number decreased in 2019 amounted to 2,213,628.88 ha. This study aims to identify and understand the spatial model of deforestation based on biophysical driving factors in South Sulawesi and West Sulawesi Provinces from 1990 to 2019. Materials used in this study were Statistics Data Centers in 1990, 2000, 2010, and 2019, Deforestation Profiles at South Sulawesi and West Sulawesi, literature supporting research. Data analysis used PCA (Principal Component Analysis) method. The results of this research explain that the driving factors the occurrence of deforestation in each location of the most influential research is the factor of the road, the closer the forest area to the road the higher the public desire to penetrate the forest area in addition, facilitate agricultural activities to distribute forest products and logs felling. River factors also have a role in the occurrence of deforestation, the community is very dependent on water needs primarily for agricultural land and plantations. In addition, the slope and altitude factors are also quite influential on the occurrence of deforestation due to the clearing of land in a fairly flat area with low altitude as in the Regency Bone and North Luwu, South Sulawesi province is very visible influence over the topographic areas of mountains and steep as in the Regency of Mamuju and Mamasa Regency, West Sulawesi Province. Areas with such topography, have a low level of accessibility so that the pressure and disturbance are low enough from the community.

AbstrakRadikalisme Islam akhir-akhir ini marak di Indonesia. Persekusi atas nama agama, kekerasan, penyegelan rumah ibadah, bahkan aksi-aksi terorisme kerap mewarnai kehidupan kita dalam berbangsa dan bernegara. Dalam situasi tersebut, anak muda muslim, khususnya dari kalangan terdidik diharapkan dapat menjadi pionir untuk mengatasi radikalisme agama ini. Sayangnya, fakta justru menunjukkan sebaliknya. Kalangan muda terdidik muslim seperti mahasiswa dan kalangan siswa justru terjangkiti virus-virus radikalisme. Di kalangan mereka ini radikalisme justru tumbuh dengan pesat. Tulisan ini menggambarkan sejauh mana paham radikalisme ini berkembang di kalangan kaum muda Islam terdidik dan bagaimana hal tersebut bisa terjadi. Ada dua kategori kaum muda terdidik dalam tulisan ini, yaitu mahasiswa Islam di perguruan Tinggi dan siswa di kalangan SMA. Data dalam tulisan ini didapatkan dari penelitian dengan mixed method. Penelitian ini mengombinasikan penelitian kualitatif dan kuantitatif. Data di dapatkan dari empat sampel perguruan tinggi di Makassar, yaitu UNHAS, UNM, UIN dan UMI. Sementara penelitian siswa sampelnya dari SMA I dan MAN I Makassar.