Land Use/Land Cover Change Detection in an Urban Watershed: A Case Study of Upper Citarum Watershed, West Java Province, Indonesia

AbstractUpper Citarum Watershed is critically threatened by LULCC especially due to rapid urbanization, forest conversion and agricultural expansion. Such changes have degraded the watershed and significantly impacted on the water quality in the upper Citarum River. In order to prevent such degradation, periodic LULCC monitoring is paramount. This study employed GIS and RS techniques to detect LULCC in Upper Citarum Watershed between 1997 and 2014. The results revealed a significant change in the proportions of the various LULC types of the study area from the year 1997 to 2014. Forest decreased by 41% between 1997 and 2005, and by 35% between 2005 and 2014. In the same time period, agricultural land increased by 8% and 2% from 1997 to 2005 and from 2005 to 2014 respectively. On the other hand built-up increased by 100% between 1997 and 2005, and by 65% between 2005 and 2014. Bare land increased by 56% between 1997 and 2005 but declined by 15% between 2005 and 2014. Bush land cover decreased by 14% between 1997 and 2005 and by 4% between 2005 and 2014. Water body decreased by 12% between 1997 and 2005, and 10% between 2005 and 2014. The study revealed that rapid urbanization was the change initiator and the major force driving LULCC in Upper Citarum Watershed

Struktur Komunitas, Cadangan Karbon, dan Estimasi Nilai Ekonomi Mangrove di Muara Sungai Musi

Mangrove ecosystem services, aside for the fisheries sector, also have ecosystem services in mitigating climate change as carbon sinks and storage. Musi river estuary located in Banyuasin Regency, South Sumatra has the potential of mangrove forests as carbon reserves. The purpose of the study is to analyze the community structure, potential carbon stocks, and economic value of mangroves in the Musi River Estuary. Data were collected at five stations using the 100 m quadratic transect method vertically to the coastline. Data analysis was conducted based on the allometric equation for biomass information, carbon storage, and the economic value of carbon stores. Mangrove ecosystems in the Musi River estuary are Sonneratia alba, Nypa fruticans, Sonneratia casiolaris, and Rhizopora apiculata. Mangrove species that have important roles in the sustainability of ecosystems are Nypa fruticans and Sonneratia alba each with IVI of 145.6 and 101.28, respectively. Carbon storage of mangrove in the Musi river estuary is 107.34 tonC / ha and carbon dioxide absorption is 393.59 tCO2 / ha with a mangrove area of ± 5276 ha. The total estimated economic value of carbon generated from mangrove are Rp174.441.016.895 (free market) and Rp455.872.524.151 (CDM). Keywords: carbon, mangrove, Musi river estuar

Tourism Carrying Capacity to Support Beach Management at Tanjung Bira, Indonesia

Tourism carrying capacity assessment for the protection of coastal area was applied to Tanjung Bira beach as an attempt to assess the optimum allowable number of visitors in accordance to the PAOT (people at one time approach) without damaging the surrounding ecological, social and cultural environments. The study shows that the Real Carrying Capacity (RCC) was 202 beach user/day and the Effective Carrying Capacity (ECC) was 117 beach user/day. Although there was a significant difference between Physical-Ecological and Social-Cultural Carrying Capacity, this study suggests that the Physical-Ecological Carrying Capacity or Real Carrying Capacity may be applied for ecosystem management, whilst the Social-Cultural Carrying Capacity or Effective Carrying Capacity (ECC) may be addressed when management objectives are tourists and beach user

Application of Interpretative Structural Modeling (ISM) to Determine Port Waste Management Strategies for African Swine Fever (ASF) Prevention at Tanjung Priok Port

African Swine Fever (ASF) is one of the  infectious diseases affecting swine with high mortality rate. Disease transmission occurs direct and indirect. Indirect transmission through feed, virus contaminated object and swill feeding produced by ships. Ships berthing in the port of Tanjung Priok mostly comes or transits from a country which ASF exist. Among those ships, some discharge their garbage and take over into the final dumping site without any further treatment. There are many institution and a third parties involved in garbage management in the port of Tanjung Priok. This research aims is to identify an obstacle, actors and strategies in managing garbage from the ships to prevent ASF spread in the port of Tanjung Priok using Interpretative Structural Modelling (ISM). The results of this research shows the biggest obstacle in managing garbage from the ships, in order to prevent ASF spread in the port of Tanjung Priok is the absence of standard operating procedures (SOP), The most important actor is Indonesia Port Corporation II and the most important strategy is develop an integrated SOP for ship waste management. is to develop an integrated SOP for ship waste management. &nbsp

HUBUNGAN BIOMASSA EPIFIT DENGAN AKTIVITAS ANTIOKSIDAN LAMUN DI PERAIRAN PULAU PRAMUKA, KEPULAUAN SERIBU, DKI JAKARTA

maupun dari serangan organisme lain termasuk organisme penempel/epifit. Penelitian ini bertujuan untuk menganalisis hubungan aktivitas antioksidan dengan biomassa epifit daun lamun Thalassia hemprichii yang hidup di Perairan Pulau Pramuka, Kepulauan Seribu, DKI Jakarta. Metode untuk menganalisis aktivitas antioksidan adalah metode DPPH (1,1-difenil-2-pikrilhidrazil), sedangkan biomassa epifit diperoleh dengan mengerik epifit yang berada di permukaan daun T. hemprichii kemudian ditimbang beratnya per satuan luas daun (mg/cm2). Aktivitas antioksidan daun lamun yang digambarkan dengan nilai IC50 berkisar antara 563,88-2039,8 mg/L. Korelasi biomassa epifit dengan IC50 sebesar 0,99 menunjukkan bahwa biomassa epifit mempengaruhi aktivitas antioksidan lamun.Kata kunci: aktivitas antioksidan, epifit, Thalassia hemprichi

Characterization of Physico-Chemical Properties of Nano-Sized Moringa oleifera Seed Powder and Its Application as Natural Coagulant in Water Purification Process

Several studies stated that the seed powder of Moringa oleifera is proven effective as natural coagulant in water purification process. Through milling process using HEM, the present study developed two size of Moringa oleifera filtered seed powder, i.e. 100 mesh (MoM) and nano particle (MoN), where the measurement of which was carried out using PSA. The two size seed powder was then characterized based on physical and chemical properties to application as biocoagulant in water purification process. Characterization indicated that the size of MoM and MoN was around 2300 nm and 300 nm, respectively. The major MoM compound content was 44.65% total protein, 27.05% fat, 10.86% water content, and 3.79% ash content; while for MoN was 44.41% total protein, 26.98% fat, 9.38% water content, and 3.53% ash content. Molecul weight measurement was carried out using SDS-page and the seed powder weight ranged was around 13-28 kda and 52-63 Kda. Dissolved protein content for MoM and MoN was 0.062% and 0.290%, respectively. The optimum dosage for MoN to decrease the turbidity of ground water sample and waste water was 30 ppm and 40 ppm, respectively; while for MoM was 80 ppm and 100 ppm, respectively. MoN is more effective than MoM. Keywords: nano particle, natural coagulant, Moringa oleifera, water purification

The Implementation of Analytical Hierarchy Process Method for Determining Livestock Alabio Duck Development Strategy in Rawa Hulu Sungai Utara

The cultivation of Alabio ducks (Anas Platyrynchos Borneo) so far is still natural and only involves one parameter; furthermore, each location has different characteristics. The hierarchical structure constructed has a ranking of importance as an alternative option for ducks' development in peatland ecosystems. This research aims to formulate a strategy for duck production in the Hulu Sungai Utara Regency. AHP (Analytical Hierarchy Process) method in this study is used to structure the decision-making flow from goals and alternatives and weigh the variables. Data collection was carried out with duck farming experts from academia, farmer groups, and policymakers. This study found that the availability of feed, both sago (0.254) and bran (0.218), is a significant component from an ecological perspective. Distance to market (0.307) and hatchery location (0.287) is an economic variable. The social part consists of distance from the settlement (0.443) and labor availability (0.247). Meanwhile, the availability of feed (0.282), hatchery technology (0.269), and Mina ducks (0.251) are the development strategies for duck cultivation in swamp areas, and economic stimulus (0.93) is the final contributor.The cultivation of Alabio ducks (Anas Platyrynchos Borneo) so far is still natural and only involves one parameter; furthermore, each location has different characteristics. The hierarchical structure constructed has a ranking of importance as an alternative option for ducks' development in peatland ecosystems. This research aims to formulate a strategy for duck production in the Hulu Sungai Utara Regency. AHP (Analytical Hierarchy Process) method in this study is used to structure the decision-making flow from goals and alternatives and weigh the variables. Data collection was carried out with duck farming experts from academia, farmer groups, and policymakers. This study found that the availability of feed, both sago (0.254) and bran (0.218), is a significant component from an ecological perspective. Distance to market (0.307) and hatchery location (0.287) is an economic variable. The social part consists of distance from the settlement (0.443) and labor availability (0.247). Meanwhile, the availability of feed (0.282), hatchery technology (0.269), and Mina ducks (0.251) are the development strategies for duck cultivation in swamp areas, and economic stimulus (0.93) is the final contributor

MANAGEMENT OF MANGROVE ECOSYSTEM POTENCY IN KUALA LANGSA, ACEH

The potency of mangrove ecosystems can be a provider of economic resources, preserving the ecological environment and providing environmental services. The existence of mangroves in Kuala Langsa is important to study about the economic potential, the potential of carbon sequestration in the form of biomass, coastal tourism potential and social potential of society in support of its development efforts. The result of the research shows that the potential existence of mangrove ecosystem to fishery sector is Rp. 657.563.000 / year, carbon sequestration potential in the form of biomass of 180.365 ton /year, with the economic value of carbon trade of Rp. 2.344.745.000/year, economic potential of coastal tourism reached Rp 22,921,107,253/year. Overall, the estimated total potential of existing mangrove ecosystems in Kuala Langsa is Rp. 29.923.415.253/year. To manage these potentials, a conservation strategy is required, performance improvement of customary institutions and the existence of such management institutions must be continuously strengthened.                                                                                                   Keywords:  institutional, Kuala Langsa, mangrove, potency, strategic                        management

Estimasi Beban Pencemaran Point Source dan Limbah Domestik di Sungai Kalibaru Timur Provinsi DKI Jakarta, Indonesia

East Kalibaru River is one of the thirteen rivers flowing through Jakarta. East Kalibaru River has an important role in development of the region. Considering the increasing activities of people, settlements and number of industries along the East Kalibaru River, it is necessary to calculate contaminants load that discharged into the water body East Kalibaru. This study conducted to determine the point source and domestic waste pollution loads, using parameters of BOD, COD and TSS. The analysis showed that the total pollution loads such are calculated as 43.714 kg/day for BOD, 60.107 kg/day for COD and total 41.529 kg/day for TSS. Total pollution load discharged into river from point source effluent is amounted of 249 kg/day for BOD, 1.505 kg/day for COD and total 411 kg/day for TSS. Effect of domestic waste is very insignificant compared to the effect of point source that went into the river. The result suggest that approach that need to be done to reduce the burden of domestic waste water pollutants is by performing additional production or communal Wastewater Treatment Plant (WWTP) in densely populated areas

Analisis Mutu Dan Kriteria Kelayakan Dokumen Amdal Di Kabupaten Bogor Dan Kota Bogor

The rapid development activities that occurred in Indonesia has the potential to put pressure on the environment. It therefore requires sustainable development efforts with one instrument is Environmental Impact Assessment (EIA). Along with the development and adjustment of environmental conditions, EIA policy has undergone several changes. With EIA policy changes, evaluation on EIA performance needs to be done. The performance evaluation conducted on 15 EIA documents EIA document issued by the District and City of Bogor in 2012 through 2014. The analytical method used is the analysis of the quality of the test quality criteria document and focused on quality test aspects of consistency, necessity and relevance, feasibility analysis with weighting criteria, Pearson correlation analysis of the two respondents certified appraiser to see the similarity assessment method. From the analysis it can be seen that the quality of the documents are best seen from the EIA documents to categories of tourist accommodation facilities with a score of 81 and the analysis of the eligibility criteria resulted that three documents are not worth the environment seen from discussion of the feasibility of the benchmarks in the EIA document, also PerMenLH 08 of 2013 carried out by equally from both respondents with a positive correlation results 0.681