The suspension flow from the upper part of a volcano watershed, which has a very thick soil condition, is sensitive to landuse form. Agroforestry is the dominant landuse form in the volcanic landscape of Indonesia. There is a lack of detailed studies about suspension flow in the upper watershed where agroforestry is the land cover. This research, performed in agroforestry area, covered the correspondence between flow discharge and suspension flow discharge, the time lag of initial rain events and the formation of suspension flow; and the characteristics of the grain size of the suspensions during the flow. The suspension flow was measured at the outlet of a gully in key watershed areas, which yielded a total of 436 suspension data. The measurement analysis was conducted at every rain event in the field and in the laboratory. The crop characteristics in the rain catchment area were recorded in details during the field survey. The characteristics of the channels converging toward the gully system were observed during the field survey. There were three relationship patterns between the peak flow discharge and the peak suspension discharge, namely (1) the peak flow discharge corresponded to the peak suspension discharge, (2) the peak flow discharge preceded the peak suspension discharge, (3) the peak flow discharge occurred after the peak suspension discharge. The average time interval between the rain events and the occurrence of suspension flow was 17.7 minutes. The peak suspension content varied from 0.0016 g/L up to 4.71 g/L with an average of 1.03 g/L. The grain size of the suspension was dominated by 71-76% of clay fraction with an average of 73% at the rising phase and 68-71% of clay fraction with an average of 69% at the falling stage

The introduction of map making and at the same time as the development of learning media are the efforts to improve the performance of high school geography teachers in the learning process of geography. This activity aims to increase teacher knowledge in spatial data concepts and cartographic rules for learning geography. PKM activities are carried out in the form of training using lecture methods, demonstrations and online discussions. The methods is used in explaining the concepts of spatial data and cartographic rules in the form of understanding, subsystems, components, data, processes, analysis, and presentation. This training activity went well based on the achievement of the target of the training participants, the objectives of the training, and the target of the planned material, as well as the ability of the participants in mastering the material being trained. Supporters for the implementation of this PKM activity include the availability of experts in the field of Cartography and QGIS at the UHO Geography Department, the enthusiasm of the participants, and the available funds for the service team. The benefits that participants can get from PKM activities are applying QGIS in making maps and for developing geography learning media in high school education

PKM Pengenalan pembuatan peta, salah satu upaya meningkatkan kinerja aparat pemerintahan di kelurahan Rahandouna dalam rangka pembangunan berbasis geospasial. PKM ini bertujuan untuk meningkatkan pengetahuan aparat pemerintahan di kelurahan dan masyarakat partisipatif dalam pemetaan dan mendukung pembangunan kelurahan berbasis peta. PKM dilakukan dalam bentuk pelatihan menggunakan metode Focus Group Discussion berupa ceramah, demonstrasi dan tanya tanya jawab. Ceramah digunakan dalam menjelaskan konsep-konsep pemetaan, data spasial, kaidah kartografis dan Sistem Informasi Geografis. Demonstrasi untuk menunjukkan prosedur kerja komponen SIG dan data geospasial serta  analisis dan cara penyajiannya berupa peta menggunakan aplikasi QGIS. Sementara itu, pendampingan klinis untuk memfasilitasi peserta mengkonfirmasikan kendala dan kesulitan yang dihadapi dalam pemetaan. Hasil pelatihan ini adalah terwujudnya indikator keberhasilan dan ketercapaian tujuan dan target pelatihan berupa peningkatan kemampuan peserta mitra dalam penguasaan materi pembuatan peta secara partisipatif sesuai kaidah kartografi dan pemggunaan aplikasi SIG QGIS yang bermanfaat mendukung pembangunan berbasis data geospasial di kelurahan Rahandouna.

Increasing population densities and food demands are major factors contributing to the widespread use of agricultural drylands in upper volcanic slope areas. This phenomenon poses a high risk of severe erosional events that are environmentally hazardous. Therefore, this study aims to analyze the sediment flow characteristics, based on the relationship between sediment flow and water level as well as the sediment discharge rate and soil loss. Field surveys were conducted to determine the soil measurement, slope morphology and dryland cover characteristics. The sediment flow was evaluated at the gully outlet, where 169 suspension data pairs for the modeling and 130 suspension data pairs for the validation, as well as the bed load, water level, rainfall and water flow characteristics were obtained. Tables and figures were subsequently used to represent the measurement data and analysis results for the correlation between the flow rate effects, sediment and soil loss on the water surface. The results showed that the sediment flow in volcanic landscape slopes with dryland agriculture were possibly characterized by the polynomial relationship, using the suspension discharge model, Qs=0.0322Q2+6.0625Q–1.2658. Under this condition, the average rate of soil loss in the form of sediment load and erosion rate of the catchment area occurred at 953.53 and ​​1,657.94 ton/ha/yr, respectively. Furthermore, the sediment sources in the soil loss were believed to originate from 83% of the suspended sediments and 17% bed loads. Keywords: Discharge; Dryland; Landscape; Sediment; Volcano Copyright (c) 2021 Geosfera Indonesia and Department of Geography Education, University of Jember   This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License