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91	Sustainable Development	ABS-39
Estimation of Runoff by Using Soil Conservation Service Curve Number Method and Geographic Information System in Wanggu Watershed Feri Fadlin (a*), Muhammad Arsyad Thaha (b), Farouk Maricar (b), Mukhsan Putra Hatta (b) a) Doctoral Student of Civil Engineering Department, Hasanuddin University *ferifadlin[at]gmail.com b) Civil Engineering Department, Hasanuddin University Abstract Runoff is one of the important components for flood modelling especially in watershed area. There are number of specific watershed characteristics which have a direct effect to runoff estimation. These includes land use/land cover, rainfall and slope data. Soil Conservation Service Curve Number (SCS-CN) is one of hydrological analysis method which provides empirical relationship of rainfall, land use/landcover and slope data for estimating direct runoff. The components of SCS-CN include estimation of initial abstraction, lag-time, river slope, river length and impervious. The CN for watershed is calculated based on land use and soil moisture condition by using Geographic Information System. The purpose of this study is to estimate runoff by using SCS Curve Number and Geographic Information System in Wanggu Watershed. Extreme rainfall data during flood event in July 2013 is used to calculate the direct runoff. The result shows that the highest direct runoff is 159.49 m3/sec during flood event 15 July 2013. Keywords: SCS Curve Number- Runoff, Geographic Information System (GIS)- Watershed Share Link | Plain Format | Corresponding Author (Feri Fadlin)

92	Sustainable Development	ABS-41
Peak-flow Hydrograph Assessment in Determining Flood Potential Hazard in Tamanroya River. Devi Ayu Puspita (a*), Farouk Maricar (b), Mukhsan Putra Hatta (b) a) Graduated Student of Civil Engineering Department, Hasanuddin University b) Civil Engineering Department, Hasanuddin University Abstract Flood hazard is the biggest problem triggering a massive damage. Jeneponto Regency had been hit by greatest flood ever in 2019. In this case, it leads dozen victims as well as properties because Tamanroya river occured overflow. Hydrograph flood depicts risk-level of event. GIS is basic tool to represent watershed model and flow accumulation. Analyzing flood hydrograph in three sub-watershed areas with three diverse areas, namely- (1) watershed area1 is 29,737 km2, (2) watershed area2 is 51,03 km2, (3) watershed area 3 is 113,18 km2 was conducted in this study. Comparison of hydrograph flood of three sub-watershed areas can be determined flood potential based three results of peak-flow hydrograph respectively. Keywords: Flood Hazard, Peak-flood Hydrograph, GIS (Geographic information System). Share Link | Plain Format | Corresponding Author (Devi Ayu Puspita)

93	Sustainable Development	ABS-42
The Effect of Triangle Plate Obstacles Model On Flow Patterns Andi Muhammad Aliyansyah (a*), Saleh Pallu (b), Mukhsan Putra Hatta (b) a) Civil Engineering Master Degree Program of Hasanuddin University, Gowa, Indonesia *andimuhaliyansyah[at]gmail.com b) Civil Engineering Department of Hasanuddin University, Gowa, Indonesia Abstract The river is a place where scouring events occur continuously based on the flow in the river itself. In this research model aims to analyze the distribution of flow patterns using triangular plate resistance. Installation of this barrier is to prevent scouring to the bottom of the channel as a result of scouring in the bridge abutment structure that is experiencing structural failure.This research was conducted using the Nays2DH computational simulation from I-ric with flume modeling. In flume modeling, the flow pattern that occurs after passing through the plate resistance makes a certain pattern so that the scour that occurs can be predicted. It is expected that these results indicate the flow pattern that occurs after the resistance has changed. Flow pattern is very influenced by discharge, channel cross section, flow velocity, shields number and shear stress. Keywords: Flow Pattern- Scour- Simulation Share Link | Plain Format | Corresponding Author (Andi Muhammad Aliyansyah M.)

94	Sustainable Development	ABS-43
Real-Time Flood propagation on the Downstream of Bili-Bili Reservoir with Hydraulic Routing M. Azwin S. (a), F. Maricar (b), Rita T. Lopa (b) Hasanuddin University, Jalan Poros Malino Km. 6, Bontomarannu. Gowa, Sulawesi Selatan. 92171, Indonesia Abstract On January 2019, the biggest flood in the last decade struck Gowa and Makassar. The flood claimed enormous number of victims and caused severe damage to many buildings. The flood in Jeneberang river can be anticipated by Hydraulic Routing. This research was conducted through three phases: delineation of watershed by using Arcgis, Hydraulic Routing by using HEC-HMS, and flood puddle simulation by using HEC-RAS which has been integrated with RAS-MAPPER. Through this research, Hydraulic Routing hydrograph model, flood travel time, real-time flood puddle model in Bili-Bili reservoir downstream have been discovered. The result shows that Hydraulic Routing hydrograph is reduced as it travels to the downstream by significant flood travel time and also shows that the flood puddle is quite vast. Keywords: Jeneberang River- Flood- Hydraulic Routing Share Link | Plain Format | Corresponding Author (Muhammad Azwin Sudarmin)

95	Sustainable Development	ABS-45
Biomarker Characterization of Oil Seepages in Tomori Basin, Center of Sulawesi, Indonesia Muhammad Sulhuzair BURHANUDDIN(a), Asri JAYA(a), Adi MAULANA(a) a. Geological Department of Engineering Faculty, Hasanuddin University, Indonesia *dzulgeo06[at]gmail.com Abstract Tomori Basin is one of the basins which have many hydrocarbon potentials. This basin located nearby Banggai Basin which have several productive oil field. Therefore, hydrocarbon characterization of the Tomori Basin is a very interesting topic since the Tomori basin has several hydrocarbon potentials with the discovery of several oil seepages in the Tomori Basin area. This study would conduct an identification oil seepage characterization from Tomori Basin using a biomarker analysis approach. Oil seepages found in the Wosu Area and Kolo Area would be the main objective of this study. Determination of Oil seepage characteristics conducted using Gas Chromatography (GC) and Gas Chromatography-Mass Spectrometry method. This method would generate biomarker data for identification of organic matter origin, oxic and anoxic condition, source facies, or depositional environment of organic matter. Based on the analysis Gas Chromatography (GC) of isoprenoid, the Pristane C19/Phytane C20 ratio of Wosu Oil shows a Pr/Ph value ratio of 0,75 as an indication of the anoxic condition typically from the hypersaline environment. Kolo Oil showing Pr/Ph ratio 3.37 indicated terrestrial organic input under oxic conditions. Cross plot between Pristane/nC17with Pr/Ph ratio showing Wosu Oil indicated derived from a highly anoxic environment with algae/bacterial organic matter input whereas the Kolo Oil derived from a suboxic-oxic environment with Pr/Ph value ratio 3,37 which indicated domination of organic matter input. Gas Chromatography-Mass Spectrometry was carried out in Wosu and Kolo Oil sample to determine the organic matter depositional environment pattern from both oil samples. Trycyclic terpene analysis from C19 to C25 shows Wosu Oil seepages tend to originate by mixing of terrestrial and marine organic matter or transitional environment. Based on the Biomarker Characteristics, Wosu Oil originated from organic matter of hypersalineenvironment in anoxic condition. Keywords: biomarker, source rock, oil seepage,gas chromatography, Tomori Basin. Share Link | Plain Format | Corresponding Author (Muhammad Sulhuzair BURHANUDDIN)

96	Sustainable Development	ABS-46
The Effect of Climate Characteristics for the Land Suitability and Cacao Productivity (Theobroma cacao L.) in West Sulawesi L Asrul (a*), Harli (b) Baja S. (c), R Padjung (c), AC Trisnaputri (c) a)Graduate School of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia *otheasrul1963[at]gmail.com b)Al Asyariah Mandar University, West Sulawesi c)Faculty of Agriculture of Hasanuddin University Abstract Climate characteristics and land suitability are the important factors that influence the growth of cocoa which is the non irrigated plant. Changes in rainfall patterns and extreme climate events cause a high level of pest and disease attacks on cocoa plants leading to a decrease in production by 10-50 percent in the last three years. West Sulawesi is one of the cocoa production centers in Indonesia that experienced a decline in cocoa production since 2012. Currently, the productivity far below the optimum level which is only around 797 kg/ha/year. This study aims to investigate the effect of specific climate characteristics and land suitability on cocoa productivity. This research was conducted in 4 districts in West Sulawesi, namely Polewali Mandar, Majene, Mamuju, and Mamasa, using quantitative methods with a deductive approach. Quantitative analysis is used in determining the correlation between land characteristics climate and cacao production in each subdistrict. The results showed that there was a significant effect between annual rainfall and annual average temperature with cocoa productivity in West Sulawesi. The highest productivity was obtained in the total annual rainfall of more than 1,600 mm/year with an annual air temperature of 25.22 0C, a maximum temperature of 28.630C. The humidity did not significantly affect the productivity of cocoa plants in West Sulawesi. The highest cocoa productivity was obtained at 83.03% humidity. Keywords: cocoa, climate, land suitability, productivity Share Link | Plain Format | Corresponding Author (Laode Asrul)

97	Sustainable Development	ABS-47
Design of Groundwater Sustain Irrigation Network System in Panca Lautang Area, Sidrap Regency,South Sulawesi Bahrul Hidayah (a*), Asri Jaya (a), A. Ildha Dwi Puspita (b), Baso rezki Maulana (a) a) Geological Engineering Department, Engineering Faculty, Hasanuddin University, Gowa 92171, Indonesia b) Civil Engineering Department, Engineering Faculty, Hasanuddin University, Gowa 92171, Indonesia Abstract Agricultural products are one of the most important necessities in Indonesia. The demands of this product increased continuously almost every year, which necessitate the agricultural side need to be productive in the terms of quality and quantity. To support the continuity of agricultural activities, one of the most important things is to provide a proper irrigation system. This study aims to support agricultural activities by providing the design of irrigation systems using sustainable development of the groundwater system, particularly in the area with a low rainfall degree. To realize a sustainable irrigation system design, measured planning and preparation are required, this study conducting topographical and hydrogeological mapping, calculating aquifer discharge and water requirements, calculating pump and energy needs, designing piping systems for water distribution, and determine budget costs planning. The study area situated in the Panca Lautang area, Sidrap regency, South Sulawesi with a location area around 19.51 Ha, with a height difference of 36-39 masl. Based on the surface geological mapping, the research area is located in the Quarternary Alluvial Deposition (Qa) Formation which consists of clay, silt, mud, sand, and gravel deposits. The climatological conditions of the study area have an average air temperature reaching 29 C with 7 C fluctuation. The average rainfall ranges are 2000 mm/year. VES and aquifer modeling shows that the aquifer is located at a depth of 80-120 meters with a potential discharge of up to 18.638 m3/hour. The water requirement for agricultural land ranges is 0.871 - 1.511 l/sec/ha, whereas the total head of the submersible pump requirement is 109 meters. The total power requirement is 3.04 kW, with the length of the irrigation network pipe is 1.127.35 m. Construction of a network system design costs up to IDR 1,478,400,000, including VAT. Keywords: Hydrogeology, irrigation, Ground water, VES Share Link | Plain Format | Corresponding Author (bahrul hidayah)

98	Sustainable Development	ABS-48
The Effect of Compost Application on Soil Fertility and Productivity of Cocoa (Theobroma cacao L.). a*)L Asrul, a)UE Setiani, b)K Mustari, b)AC Trisnaputri a) Graduate School of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia *otheasrul1963[at]gmail.com b) Faculty of Agriculture of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia Abstract Soil security is really important to develop and sustain cocoa production in Indonesia. Therefore, the use of organic input such as compost is highly recommended to improve productivity as well as maintain soil fertility. The on-farm processing of cocoa can provide about 80% of cocoa fruit is discarded as residual biomass, including cocoa pod husks. Therefore, recycling of nutrients can help to reduce the dependence on synthetic fertilizer. This study aims to determine the effect of the application of cocoa husk compost on soil fertility and the productivity of cocoa plants. This research was conducted in Gantarangkeke Village, Gantarangkeke District, Bantaeng Regency, South Sulawesi. This study was carried out using Randomized Block Design (RBD) as its environmental design with the compost application consists of 5 levels (0kg- 2.5kg- 5.0kg- 7.5kg- 10kg). The results showed that the application of 10 kg compost per tree resulted in soil pH of 6.3- CEC of 27.14 cmol (+) kg-1, organic C of 2.16%, available P of 18.1 ppm, available K of 0.46 cmol (+) kg-1, the number of fruit per tree 9.67 (fruit), seeds / fruit 28.37 (seeds), Weight 100 dry seeds 113.17 (g), dry seeds per tree 315.50 (g), dry seeds per hectare 350.50 (kg / ha). Keywords: cocoa, compost, production, soil fertility Share Link | Plain Format | Corresponding Author (Laode Asrul)

99	Sustainable Development	ABS-50
Hydrodynamic Computation Analysis of Main Channel and Flow Change in Baliase River Zularifin (a), Saleh Pallu (b), Mukhsan Putra Hatta (b) a) Universitas Hasanuddin, Gowa, Jalan Poros Malino KM.6, Bontomarannu, 92171, Gowa Sulawesi Selatan. b)Fakultas Teknik Universitas Hasanuddin, Gowa, Jalan Poros Malino KM.6, Bontomarannu, 92171, Gowa Sulawesi Selatan. Abstract This study aims to analyze the hydrodynamics of the Baliase Main Channel through the computational simulation of the Nays2DH - iRIC application and to determine changes in the Speed pattern, Froude number of the Baliase Trunk design review. The results showed that the computation simulation using the Nays2DH application was able to simulate the condition of the Baliase Kanan main channel both before the channel dimension change and after experiencing a channel change. By using the principle of hydrodynamics is able to show the flow pattern, flow velocity is clearly compared to using the principle of hydrostatics. The results that the flow velocity obtained from using hydrostatic principles were obtained before experiencing a change in dimensions (model A) v = 1.102 m / s, while the 2DH Nays simulation results obtained v = 0.94 - 1.2 m / s. Meanwhile, after experiencing a change in the channel dimensions (Model A) the flow velocity is v = 2.067 m / s, the simulation results of the Nasys-2DH computation flow velocity v = 2.1 - 2.6 m / s. Froude number produced by model A, Fr = 0.224 -0.236 and after experiencing a change in channel demise (model B), Fr = 0/45 to 0.7 (sub critical), which means that the channel^s cross-sectional depth is still able to handle the flow velocity that occurs. Keywords: Channel- Flow velocity- Nays2DH Share Link | Plain Format | Corresponding Author (Zul Arifin)

100	Sustainable Development	ABS-63
APPLICATION OF ARC GIS SYSTEM TECHNOLOGY IN DETERMINING FLOOD AND SAFE ZONE FOR FLOOD MITIGATION Abdul Azis1, Nur Khaerat Nur2*, Muhammad Chaerul3 1Postgraduate Student Infrastructure and Environmental Engineering, Fajar University, Makassar, Indonesia 2Civil Engineering, Engineering Faculty, Fajar University, Makassar, Indonesia Infrastructure and Environmental Engineering, Postgraduate Faculty, Fajar University, Makassar, Indonesia Abstract Abstract Flood is a common problem in several big cities, such as Makassar City which is the Capital City Center of South Sulawesi Province. The tragedy of the flood disaster on January 21, 2019, which has hit most of South Sulawesi Province, especially Makassar City, and Gowa Regency, still leaves deep grief and also enormous losses for the flood victims. Today, computer-based technology has penetrated almost all sides of human life. Various scientific disciplines have used computer-based technology to develop theories and applications through various information systems. One type of computer-based system that is very popular in use in Geographic Information Systems (GIS) technology. The research method used is the application of the ARC GIS 10.5 system technology. The results of data analysis and mapping of flood areas in Panakkukang District, there are 4 villages which are flood-prone areas that are included in the alert zone, namely Pampang, Tamamaung, Sinri Jala, North Karuwisi. Rappocini Subdistrict, which is part of a vulnerable area, namely Bantabantaeng Village, is 1,985 Ha and 145,709 Ha is included in Karunrung, Gunung Sari, Bontomakkio, Tidung, Kassi-Kassi, Mappala Villages. Manggala sub-districts are included in the vulnerable areas, namely parts of Manggala, Bangkala, and Borong. Tamalanrea sub-districts that are in vulnerable areas are Kleurahan Tamalanrea Indah, Tamalanrea Jaya, and Tamalanrea. Keywords: Arc GIS, flood zoning, mitigation, Makassar City Share Link | Plain Format | Corresponding Author (Andiny Putri Batara I.B.D)

101	Sustainable Development	ABS-64
The influence of intrusion on change characteristic of coal in Mallawa Formation of South Sulawesi Province Anshariah, AM Imran , S Widodo and UR Irvan 1Doctoral student of Earth and Environmental Technology, Faculty Engineering, Hasanuddin University, 90245, Indonesia. 2Geological Engineering Department, Faculty of Engineering, Hasanuddin University, 90245, Indonesia. 3Mining Engineering Department, Faculty of Engineering, Hasanuddin University, 90245, Indonesia. 4Mining Engineering Department, Faculty of Industrial Technology, Universitas Muslim Indonesia, 90231, Indonesia Abstract Coal that is deposited in the same depositional environment, age, and formation will usually have the same characteristics. However, the influence of geological conditions in an area can cause differences in the characteristics of coal in the same formation. This study aims to analyze geological factors that can affect differences in the characteristics of coal in the same depositional environment, age and formation. The study was conducted at three different locations, namely Mallawa District, Maros Regency- Lanne District, Pangkep Regency- and Massenrengpulu Region, Bone Regency. The coal sampling method in the study area uses the channel sampling method (ply by ply) which represents the bottom, middle and top coal seams. The results of the proximate analysis of coal in the Mallawa District Maros Regency showed an average moisture content of 7.78%, an average ash content of 39.99%, volatile matter 32.85%, and fixed carbon 19.39%. While in the area of Lanne District, Pangkep Regency shows an average moisture content of 9.65%, an average ash content of 40.41%, volatile matter 33.80%, and fixed carbon 16.16%. The results of proximate analysis in the Massenrengpulu area of Pangkep Regency showed an average moisture content of 3.86%, an average ash content of 23.16%, volatile matter 35.53%, and fixed carbon 37.46%. Coal from Mallawa and Lanne District has relatively the same characteristics, while the Massenrengpulu coal has lower moisture and ash content, and higher fixed carbon caused by the intrusion of igneous rocks in the area which causes the coal maturation process to be faster than the other two regions. Keywords: Coal,environment Share Link | Plain Format | Corresponding Author (Resni Amalia)

102	Sustainable Development	ABS-66
Preliminary Study of Geology, Alteration and Ore Mineralization at East Motoling Area, South Minahasa District, North Sulawesi, Indonesia. Faiza Rahman Hakim and Arifudin Idrus Department of Geological Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia Abstract Keywords: Epithermal, East Motoling, North Sulawesi Share Link | Plain Format | Corresponding Author (Resni Amalia)

103	Sustainable Development	ABS-75
Development of Climate Characteristics for the Suitability of Cocoa Land in West Sulawesi Harli A. Karim1, Laode Asrul2, Baja S2, R. Padjung2, R. Neswati2 1 Department of Agrotechnology, Al Asyariah Mandar University 2 Faculty of Agriculture Hasanuddin University Abstract Cocoa as leading plantation commodities which is quite essential for the national economy that decreasing productivity from 2012 to 2019. Cocoa is the main plantation commodity in several regions in Indonesia, including West Sulawesi Province. The low productivity of cocoa is caused by the fact that cocoa plants that are planted do not meet the optimum growth requirements. Land quality as an optimal growth factor varies greatly in land and time quality, so it requires an indepth study, one of which is the parametric approach. This approach anayzes the land requirements climate for the suitability of specific cocoa plantations in particular regions, so this study aims to determine the characteristics of the land that correlate with cocoa productivity in a specific region.The study was conducted from January to July 2020. Also, this study aims to establish a land index through a deductive parametric approach in the Polewali Mandar district as a sample of research locations. The Research purpose of this study was to determine the land characteristics climate) in West Sulawesi. This study used a qualitative-quantitative mix analysis. Quantitative analysis is used in determining the correlation between land characteristics climate and cacao production in each subdistrict. Determination of land characteristics climate that has a significant effect using regression analysis Primary data were obtained from direct observation, while secondary data were obtained from related institutions. Besides, the determination of the profile location based on production data and cocoa crop distribution through satellite imagery. Qualitative and quantitative analysis using regression data analysis was used. The results showed that the climate Cocoa requires less rainfall of 571.16 mm during the large harvest period, while the moderate harvest period has rainfall of 1.430 mm and the occurrence of a small harvest period results in rainfall of 1.071 mm. There is a significant relationship be Keywords: Cocoa, climate, land, compatibility, west sulawesi Share Link | Plain Format | Corresponding Author (INDAH WAHYUNI B)

104	Sustainable Development	ABS-79
THE STRUCTURING AND EMPOWERMENT POLICY OF LOSARI BEACH STREET VENDORS BASED ON THE CONCEPT OF SMART CITY Prayudi Saputra Ahdin1 , Arifuddin Akil2 , M. Ramli AT3 1Program Studi Manajemen Perkotaan, Sekolah Pascasarjana Universitas Hasanuddin. (email: prayudi_saputra[at]yahoo.co.id) 2Departemen Perencanaan Wilayah dan Kota Fakultas Teknik, Universitas Hasanuddin. (email: arifuddinak[at]yahoo.co.id) 3Departemen Sosiologi Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Hasanuddin. (email: ramlihat[at]gmail.com) Abstract At the time of this research, the condition of the Losari Beach street vendors was already organized into the bridge area, but the governance regulation indicated several weaknesses that had implications for the emergence of new chaos through the arrangement of street vendors who were still conservative. The aim of this research is to describe the form of policies that has been carried out by the government in structuring and empowering the street vendors of Losari Beach, understand the impact of policies on street vendors, and explain the direction of policy development based on the concept of smart city. This study used qualitative descriptive analysis to describe the form of policies that has been carried out by the government- qualitative thematic analysis to understand the impact of the policies on street vendors measured with six policy evaluation criteria, i.e. effectiveness, efficiency, adequacy, equity, responsiveness, and appropriateness- and a comparative qualitative descriptive analysis to explain the direction of policy development based on the concept of smart city. The results of the research indicate that the form of the structuring policies carried out by the government includes three indicators, while the empowerment policies that have been carried out by the government include four indicators. The impact of structuring policies of street vendors indicate that the criteria for adequacy are not fulfilled, while the impact of the empowerment policies indicates that the criteria for adequacy, equity, responsiveness, and appropriateness are not fulfilled. The direction of policy development based on the concept of smart city recommends structuring policies by creating a selling specialization zone for street vendors, building different characteristics in each selling zone, and rearranging the location of private vehicle parking lots. Meanwhile, the empowerment policies are in the form of procurement of some portable sink, Keywords: the impact of impact, structuring, empowerment, street vendors, Losari Beach Share Link | Plain Format | Corresponding Author (Afrizal Surya Erlangga)

105	Sustainable Development	ABS-84
DIRECTION OF LAND USE BASED ON LAND CAPABILITY APPROACH IN JAYAPURA DISTRICT, PAPUA PROVINCE 1. Marits David Kolojutju, 2. Hazairin Zubair, 3.Andang Suryana Soma, 1. Perencanaan dan Pengembangan Wilayah, Sekolah Pascasarjana, Universitas Hasanuddin (email: DavidBenzemaBlajc[at]gmail.com) 2. Fakultas Pertanian Universitas Hasanuddin (HazairinZubair[at]gmail.com) 3. Fakultas Kehutanan Universitas Hasanuddin (email : SuryaAndangSoma[at]gmail.com) Abstract Land resources are anything that can provide benefits in the physical environment which includes soil, climate, relief, hydrology and existing vegetation. This study aims to study the Land Capability and Suitability Classification which is expected to be used as a technical guide for Land Use Planning in Jayapura District. The method used in this study is to use the Arcgis 10.3 Program by overlaying (overlapping) between digital space pattern maps (shapefile format) and digital land capability maps (shapefile format). This process is called overlay spatial analysis (overlay) in the ^Union^ extension. Map of spatial patterns and land capability of thesame region (Jayapura district), same scale (1: 800,000) and same projections (geographic system) overlaid to obtain new territory and find criteria VIII of land capability class with a unified cultivation space pattern and produce area new as a priority for land use direction in Jayapura Regency Papua Province. The results of this study indicate that based on the results of the administrative map overlay and the Land System Map there are 42 characters from the land system and then with the standard Land Overlay capability class found 8 land capability groups, as follows: 1 ). The ability of class I land in the Land KFT System area of 8,758.30 Ha or 0.50%, 2. The capability of Class II land in the SPW, AMU, BVK, PPL, STL land area of 75,321.48 Ha or 1.33%, 3 Class III land capability on KRI, ORI, PTG, BOA, AFT, GRO, SRA land systems covering 957,522.34 Ha or 54.96%, 4. Class III land capability on MMM, FLY, GBT, INM, KJP land systems , SWA, TMN, TRT with an area of 203,192.52 Ha or 11.66%, 5. Class V land capability on a land system of 7,006.64 Ha or 0.40%, 6. Class VI land capability on the AMS, NDB land system, SSR, GBO, KWS covering 168,891.10 hectares or 9.69%, 7. Ability of class VII land in the WKI land system area of 15,754.94 Ha or 0.91%, 8. Ability of class VIII land in the WBU, STS land system, PAG, BSR, AUK, Keywords: Land capability, Land Use Direction in Jayapura Regency, Papua Province Share Link | Plain Format | Corresponding Author (Afrizal Surya Erlangga)

106	Sustainable Development	ABS-88
Geological Heritage as a Basis for Geoscience Development: A Case Study of Bentong-Raub Suture in Lojing Area, Gua Musang District, Kelantan, Malaysia Ulva Ria Irfan (a*), Ilham Alimuddin (a), Rohaya Langkoke (a), Arham M. A. Bahar (b), Arief R. I. A. Putra YS (c) a)Geological Engineering Department, Faculty of Engineering, Universitas Hasanuddin, Gowa 92119, South Sulawesi, Indonesia *ulvairfan[at]yahoo.com b)Geostructural Laboratory, Faculty of Geoscience, University Malaysia Kelantan, Jeli, Kelantan 17600, Malaysia c)Geological Engineering Study Program, Faculty of Engineering, Universitas Hasanuddin, Gowa 92119, South Sulawesi, Indonesia Abstract The study area is located at the Bentong-Raub suture zone within the collision zone between Sibumasu plate and Indochina plate during Upper Permian and was completed by Upper Triassic. The geological processes that make up various lithologies, as well as the geological structures that make up typical geomorphology need to be preserved for educational purposes through geoheritage. Geological aspects have geoheritage value and the potential to be used as geotourism. Therefore, this study aims to assess the geoheritage aspect of the Lojing Gua Musang area, Kelantan, Malaysia. Geoheritage classification is based on aspects of geodiversity, scope, and scale. Geodiversity of Pelecypoda Fossil (Mollusca Phylum) is the coverage of the palaeontological site at a score of 3 (fair). The structure site is represented by a geodiversity of lithological variations in metamorphic rocks, metasediment, sediments, and volcanic rocks on small scale scored of 4 (good). Geodiversity quartzite boulder waterfall is a geomorphological site with a small scale score of 4 (good). Coal and mineral graphite are a scope of mineralogical sites on small scale, the score of 3 (fair), and cultural sites represented by Putri Gua Musang trails on a medium scale, are a score of 5 (very good). Geosite values that are scientific, namely various lithologies representing the Bentong Raub Suture Lojing area have a good geological heritage as an attraction for visitors or scientists. Keywords: Geoheritage, Geodiversity, Geotourism, Geosite, Gua Musang Share Link | Plain Format | Corresponding Author (Ulva Ria Irfan)

107	Sustainable Development	ABS-93
THE CORRELATION BETWEEN SOIL CHEMISTRY CHARACTERISTICS WITH COCOA YIELD (A CASE FROM WEST SULAWESI, INDONESIA) Baja S, Harli, L Asrul, R Padjung, R. Neswati Hasanuddin University Abstract Cocoa is the main plantation commodity which plays an important role in the Indonesian economy. In addition, cocoa is still the third largest source of non-oil and gas foreign exchange after rubber and palm oil. Indonesia is also still the third largest producer of cocoa beans after Ghana and Ivory Coast. Cocoa bean production has continued to decline since 2012. Cocoa production in Indonesia is only 659,776 tons. However, cocoa is the main plantation commodity in several regions in Indonesia, including West Sulawesi Province. The main problem for cocoa in Indonesia is the low productivity of the plant. The average productivity of cacao plants in West Sulawesi in 2019 was only 797 kg/ha/year. The productivity of the cocoa plant can reach 2,000-3,000 kg/ ha/year. One of the causes of the low productivity of the cocoa plant is the mismatch of soil chemical properties. The study uses quantitative methods with a deductive approach. This research took place from January to August 2020 in four districts in West Sulawesi, namely Polewali Mandar, Majene, Mamasa and Mamuju Regencies. Selection of research locations based on cocoa production data. The determination of the 30 point representative profiles was based on cocoa productivity data. The soil samples were analyzed at the Hasanuddin University Soil Fertility Laboratory. The results showed that there was a correlation between CEC and cocoa productivity. The amount of exchangeable bases (Ca, Ma and K) has a significant effect on cocoa plants in the high productivity category. There is a negative correlation of salinity for cocoa plants in the high productivity category (1500-2500 kg / ha / year. Higher salinity causes lower productivity of cocoa plants. Likewise in the low productivity category (<800kg/ha/year). There is no correlation between pH H20 with cocoa productivity at all representative profile points There was a positive correlation between pH H2O and other soil chemical characteristics, namely C-Organic, salin Keywords: correlation, chemical of soil,productivity, cocoa Share Link | Plain Format | Corresponding Author (Sumbangan Baja)

108	Sustainable Development	ABS-94
Weather Forecasting Uses Backpropagation Algorithm Artificial Neural Network Model for Agricultural Planning in Three Villages at Three Sub-Districts of Gowa Regency Ainun Ayu Lestari, Ahmad Munir and Suhardi Hasanuddin University Abstract Weather is a condition of air in a narrow place, which is a condition based on symptoms of temperature, air pressure, humidity, wind, rainfall, sun exposure, cloud conditions, wind speed and others. This study aims to develop weather prediction models that are used for planning agricultural cultivation activities. The method used in predicting climate is Backpropagation Artificial Neural Network technique based on rainfall data in 1996-2019 in Samata Village, 1975-2019 in Julu Bori Village and 2007-2019 in Tete Batu Village. The results showed that the climate classification according to Oldeman in Samata Village dan Julu Bori Village were in the C1 climate type suitable for planting one-time rice crops and crops twice in one year while Tete Batu Village was in the B3 climate type suitable for planting rice crops twice and crops once a year. Keywords: Weather, Artificial Neural Network, Backpropagation, Cropping Pattern Share Link | Plain Format | Corresponding Author (Ainun Ayu Lestari)

109	Sustainable Development	ABS-95
The Development Strategies of Cocoa Cultivation (Theobroma cacao L.). in Soppeng District a*)L Asrul, a)A Yulianti, b)Y Musa, b)AC Trisnaputri a) Graduate School of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia *otheasrul1963[at]gmail.com b) Faculty of Agriculture of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia Abstract The development of cocoa cultivation is currently optimal in Soppeng Regency and is still experiencing problems or problems such as managing recommended cocoa plants due to limited knowledge of farmers, increasing pests and diseases caused by improper application of cultivation systems, and erratic seasonal changes. , the condition of plants that are old or damaged, resulting in unproductive plants. These factors greatly affect the life and welfare of cocoa farmers. This study aims to identify factors that support farmers in developing cocoa cultivation in Soppeng Regency and analyze business strategies for developing cocoa cultivation at the farmer level in Soppeng Regency. The study showed that the Internal Factor Strategy Analysis Matrix (IFAS) for developing cocoa cultivation consisted of the highest strength factor in the appropriate agro-climate conditions, supportive natural resources and the experience and skills of farmers in cocoa farming. Meanwhile, the highest weakness factor is the application of cocoa management that is not according to recommendations. The External Factor Strategy Analysis Matrix (EFAS) measures the opportunity factor of local government support to make cocoa a leading commodity in the plantation sector and education and training through field schools. Meanwhile, the highest factor is the factor of pests and plant diseases. Based on the SWOT diagram analysis, the results obtained coordinates 0.67- 2,17, where these coordinates are in Quadrant I, which is an aggressive strategy, where this strategy can be used in developing cocoa cultivation in Soppeng Regency, namely utilizing the support provided by the government by increasing cocoa farming from upstream to downstream, doing extension and training in applying technology to farmers, creating demonstration plots based on agro-climatic conditions and available natural resources as training sites for cocoa farmers. Keywords: cocoa, cultivation development, SWOT analysis Share Link | Plain Format | Corresponding Author (Laode Asrul)

110	Sustainable Development	ABS-96
The Adoption of Cultivation Technology and The Quality of Cocoa Seeds in Bantaeng, Pinrang, and Luwu Timur District a*)L Asrul, b)Darmawansa, b)A Sahur, b)AC Trisnaputri a) Graduate School of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia *otheasrul1963[at]gmail.com b) Faculty of Agriculture of Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Makassar 90245, Indonesia Abstract Cocoa is one of the main sub-sector commodities in Indonesia in which production tends to decline due to the low adoption rate of cocoa cultivation technology. This study aims to determine the level of cocoa technology innovation adoption and its effect on cocoa quality in Bantaeng, Pinrang, and East Luwu Regencies. This research was conducted in 3 districts, namely East Luwu Regency (Burau, Wotu and M Transana), Pinrang District (Lembang, Patampanua, and Batulappa), and Bantaeng Regency (Gantangkeke District and Tompubulu District) South Sulawesi Province. This study used two data analysis methods, namely qualitative descriptive and quantitative, then the data were correlated using rank Spearman correlation analysis in the SPSS application. The results showed that the average percentage level of cocoa cultivation technology adoption in the three districts was in the moderate category (66.61%). Furthermore, the the level of cocoa cultivation technology adoption had a positive effect on improving the physical quality of cocoa beans with the correlation coefficient of cocoa cultivation technology adoption with beans weight per 100 grams was 0.680- weight per bean was 0.583- a bean length was 0.391, and the cocoa bean thickness was 0.547. Keywords: cocoa, technology adoption, quality Share Link | Plain Format | Corresponding Author (Laode Asrul)

111	Sustainable Development	ABS-97
Estimation of carbon stock on palm oil (Elaeis guinensis Jacq) in PT. Unggul Widya Teknologi Lestari Kabupaten Pasangkayu, Sulawesi Barat L Asrul (a*), Rafiuddin (b), G Randa (b) 1 Graduate School, Hasanuddin University, Indonesia *otheasrul1963[at]yahoo.com 2 Department of Agrotechnology, Faculty of Agriculture, Hasanuddin University Abstract The expanding development of oil palm plantations has played a major role in the economy and in improving the welfare of the Indonesian people, but faces major challenges, especially regarding environmental issues, namely the level of carbon emissions generated from this oil palm cultivation. But oil palm is a plant that has a great ability to absorb carbon and store it as a metabolic source for plant growth. This study measuring the potential carbon stocks and uptake of CO2-eq of oil palm plants using non-destructive method with allometric equation. The calculation of carbon stock was carried out on five samples of plant age (planting year). The results of carbon reserves and the potential for CO2-eq uptake at PT. Unggul Widya Teknologi Lestari Baras II Estate shows that the greatest potential is found at the planting age of 15 years (planting year 2005) with a carbon reserve of 7,598 tons and a potential COuptake2-eqof 27,353 tons, while the smallest potential is found at the age of 3 years of oil palm ( planting year 2017) with carbon stock of 343 tons and the potential for absorption of CO2-eq amounted to 1,257 tons. The content of carbon reserves and the potential for COuptake2-eqin oil palm is influenced by the age of the plant and also the area of land planted for each plant age so that it supports the continuity of oil palm productivity and the oxygen capacity generated to the environment is getting bigger Keywords: carbon stock, CO2-eq uptake, oil palm Share Link | Plain Format | Corresponding Author (Laode Asrul)

112	Sustainable Development	ABS-107
Flood resilience and sustainable development challenges in Indonesia: A case of the Lake Tempe fisheries community in Pallimae village, Wajo regency Muhammad Ulil Ahsan (a*,b), Adi Maulana (c,d) (a) Center of Excellence for Interdisciplinary and Sustainability Science (CEISS), Hasanuddin University (b) Sustainable Development Goals Centre, Hasanuddin University *ulilahsan[at]gmail.com (c) Research and Development Centre for Disaster Study, Hasanuddin University (d) Department of Geology, Hasanuddin University adi-maulana[at]unhas.ac.id Abstract Sustainable development goals (SDGs) agenda has been ubiquotous in the current development narratives. In the context of a country with high occurance of disaster, Indonesia has been facing severe flood annually. It is exacerbated by the climate change and unsustainable practices of development at the local level. The incresing level of flood requires resiliency of the community surrounding the disaster areas. This paper seeks to explore the way in which people in Pallimae village in Lake tempe faces annual flood through various adaptation strategies. The strategies shows an effective flood resilience practices to annual flood and socio-ecological changes. However, the incongruency between the development programs and policies have created ineffectiveness of disaster management. In the context of SDGs implementation, recognising the local context of disaster is a prominent step. The related actors should adopt such strategies and institutionalise the local practices of resiliency into the policy instruments and disaster mitigation program. Accellerating SDGs implementation requires two ways of reinforcement, namely effective community-based bottom-up instrumental processes and enhancement of the local practices of sustainable living and resiliency. The development, therefore, should integrate the the concept of local resiliency, maintaining the local wisdom and connecting it to the people livelihood improvement in the Lake Tempe. Keywords: resiliency, disaster, flood, Sustainable Development Goals Share Link | Plain Format | Corresponding Author (Muhammad Ulil Ahsan)

113	Sustainable Development	ABS-111
Land Suitability Analysis for Urban Development Using Multi-Hazard Map In Mamuju District, West Sulawesi Province, Indonesia Suci Anastasia, Ilham Alimuddin, Fauzi Arifin Department of Geological Engineering, Hasanuddin University, Gowa, Indonesia *sucianastasia07[at]gmail.com Abstract In urban development, land suitability assessment is very important to be considered by urban planners and policymakers for designing urban spatial planning. Assessment of the suitability of urban planning using a multi-hazard map is made to provide an overview of potential natural hazards that pose a threat to regional development so that the government can avoid urban development in areas prone to natural hazards or implementing urban development based on disaster mitigation. The research area in Mamuju District which is the capital city of West Sulawesi Province and an area that has frequently suffered damages due to floods, landslides, and earthquakes. The main scope of this research is to synthesize natural hazard maps in one multi-hazard map and thus identify suitable areas for urban development using the Analytical Hierarchy Process (AHP) method and utilize Geographical Information Systems (GIS). The results showed that the Mamuju area was mostly at moderate to high suitability. Keywords: Urban geology, Land suitability, Multi-hazard assessment, Analytical Hierarchy Process (AHP), GIS Share Link | Plain Format | Corresponding Author (Suci Anastasia)

114	Urban Heat Island	ABS-60
POTENTIAL IMPACT OF CLIMATE CHANGE ON WATER RESOURCES AVAILABILITY IN BANTAENG DISTRICT, SOUTH SULAWESI PROVINCE Muhammad Chaerul 1*, Sri Gusty1, Ismail Marzuki 2, Nur Khaerat Nur3, Muh. Rusli4 1Infrastructure and Environmental Engineering, Postgraduate Faculty, Fajar University, Makassar, Indonesia 2Chemical Engineering, Engineering Faculty, Fajar University, Makassar, Indonesia 3Civil Engineering, Engineering Faculty, Fajar University, Makassar, Indonesia 4Postgraduate Student Infrastructure and Environmental Engineering, Fajar University, Makassar, Indonesia Abstract As a result of climate change, the rain pattern condition will be more extreme, wherein the rainy season, the higher the rainfall, which can trigger more floods and landslides. In comparison, in the dry season, the less rain is added with increased evaporation due to increased temperatures, which can trigger disasters. Drought. This research aims to what extent the impact of climate change on water availability will be used as the primary raw material for PDAM in Bantaeng Regency. The results of climate change projections show that the potential monthly average surface water discharge in Bantaeng Regency, especially the watershed used by PDAM, changes fluctuatively. During the rainy season, the projected run-off discharge increases by around 15%, while during the dry season, it decreases by about 13% in the Nipa-Nipa, Gusung, and Kaili Watershed. This indicates that the vulnerability of surface water resources at the peak of the dry season (August) to the watershed with PDAM intakes- however, in general, the availability of surface water resources in the three watersheds is relatively safe, as indicated by the projection results of run-off discharge on average. The annual average increased by 4%. Keywords: climate change, water resources, PDAM, Bantaeng Share Link | Plain Format | Corresponding Author (A. Imam Utama)

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