This study aims to determine the influence of settlement density on the fire hazard in the dense settlement area. This study location is in Cengkareng Subdistrict, West Jakarta. The population in this study was all the settlements or settlement blocks in the Cengkareng Subdistrict. This research uses the descriptive quantitative method, while data is collected using the Arc GIS Online satellite image. Technological advances in remote sensing and GIS can be used to analyze fire hazard settlements based on the variables that determined. The results showed that there was a significant influence of settlement density to increase the fire hazard in the settlement area. Therefore, the cooperation of society is still needed to participate in disaster mitigation to reduce the losses and needed to socialized to another institute in can be utilized in the planning of construction of the settlement fire response and providing fire extinguisher facilities.

This study aims to analyze preparedness level of the high school community in facing earthquake and tsunami in Lebak Regency of Banten Province based on the parameters of Knowledge and Attitude (KA), Policy Statement (PS), Emergency Planning (EP), Warning System (WS), and Resource Mobilization Capacity (RMC). The population in this study is the Senior High School (SMA) Community in the vulnerable tsunami area of Lebak Regency of Banten Province, consisting of 11th grade students, teachers, and school principals/staff. Data were collected by questionnaire and observations. Descriptive quantitative, and comparative methods in this study were used to obtain more indepth analysis results. The data were analyzed by the preparedness index using the application “Step-A”. Then to get a deeper understanding, data analysis was also combined with descriptive analysis, situation analysis, and explanatory analysis. The results of the study showed that the level of preparedness of the school community in Lebak Regency of Banten Province relatively low. From the results of the study, it can be concluded that the community of senior high schools in Lebak Regency of Banten Province needs to be improved in various aspects.

The need for rice is certainly increasing along with the increase in the population of a region. Weninggalih is one of the villages in Bogor Regency where most of the land cover (63%) is rice fields. The land can only be harvested once a year. So that the area of ​​rice fields is not proportional to the results of rice production produced. These problems raise the interest of researchers in conducting land evaluation analysis on lowland rice plants. The data used comes from the results of data collection with observation techniques and literature study. The sample used was 35 units based on the matching analysis technique to produce an evaluation analysis of lowland rice plants. The matching results show that there are two land suitability classes including marginally suitable (S3) and not suitable (N). As much as 254.20 ha (82.17%) is a marginal suitability class (S3), while 55.20 ha (17.82%) is not suitable (N). The results of the analysis are limited by several factors, including water availability, drainage, soil CEC, base saturation, soil pH, organic C, total N, P2O5, K2O, slope, erosion hazard, inundation height, duration of inundation, and rocks on the surface. After making improvements to the actual land, 309.72 ha became a potential class with a very suitable land suitability class (S1).

Proses terjadinya konversi lahan pertanian dapat disebabkan oleh faktor internal dan eksternal yang berpengaruh terhadap perubahan luas lahan. Faktor penduduk dan perekonomian diketahui sebagai faktor eksternal penyebab terjadinya konversi lahan pertanian menjadi non-pertanian. Salah satu wilayah yang mengalami konversi lahan pertanian ialah di Kabupaten Tangerang. Penelitian ini bertujuan untuk mengetahui faktor eksternal yang mempengaruhi konversi lahan pertanian. Metode penelitian menggunakan kuantitatif asosiatif dengan teknik analisis data statistik melalui model Geographically Weighted Regression. Pengumpulan data dilakukan dengan cara survei instansional untuk mendapatkan data sekunder dari laporan atau publikasi instansi terkait penelitian. Hasil menunjukkan besaran nilai setiap variabel berbeda di tiap kecamatan serta perbedaan variabel yang mempengaruhi konversi lahan pertanian. Variabel laju pertumbuhan penduduk dan kepadatan penduduk berpengaruh terhadap konversi lahan pertanian di 24 kecamatan. Terdapat lima kecamatan yang hanya variabel kepadatan penduduk berpengaruh terhadap konversi lahan pertanian. Rumah tangga miskin diketahui tidak berpengaruh nyata terjadap konversi lahan pertanian di seluruh kecamatan.

ABSTRACT Growing population have an impact on the strategy of fulfillment the water need and degradation of groundwater quality in Jakarta, especially in fluviomarine landforms in Jakarta. The purpose of this study was to determine the condition of wells and create a model of groundwater flow direction on fluviomarine landforms based on the season. Methods in this research study include three main aspects, namely population, characteristics of the object under study, and analysis. The population in this study using 30 groundwater wells sample representative of the population. Relating to the characteristics of the object under study, this study using a survey method. The survey is a sample survey on wells population who still use unconfined groundwater. About data analysis, then in this study used quantitative and qualitative approaches to the modeling of the groundwater flow direction using the Inverse Distance Weighted (IDW) in ArcGIS. The results showed that the unconfined groundwater wells in the study area consisted of dug wells and pantek wells. It is generally known that groundwater levels in the rainy season are higher than the dry season with a depth of groundwater level in the dry season to be deeper than the rainy season. Most of the groundwater level in organic settlements in the study area is below sea level, whereas in planned settlements is rarely found people who use groundwater. The depth of unconfined groundwater well less than 20 m with a thickness of water on the wells in the rainy season are thicker than the dry season. Groundwater flow direction along the north coast of central and western parts likely to lead to the mainland, while the southern part has a groundwater flow that is likely to lead to the North. Keywords: Fluviomarine Landforms In Jakarta; Unconfined Groundwater; Groundwater Flow Direction