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VALUASI EKONOMI JASA LINGKUNGAN EKOSISTEM HUTAN TAMAN EDEN 100, DESA LUMBAN JULU, PARAPAT, SUMATERA UTARA Ivany Gresya Saragih; Made Sudiana Mahendra; I Made Sudarma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 2 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Eden 100 Forest Park is an ecotourism area that has the potential of natural resources that can be used as tourist attractions. Forest Park Eden 100 also provides environmental services such as hydrological forest services, forest services as carbon sinks, and forest services in producing timber and non-timber goods. This study aims to find out what environmental services are provided by the Eden 100 forest and to analyze the economic value of environmental services and the obstacles and challenges faced by managers in efforts to preserve forest ecosystems. The results showed that the Eden 100 Forest Park provides environmental services in the form of direct use environmental services, namely wood production with economic value of the economic value of wood production of Rp 7,822,633,800 and non-wood (fruits) of Rp 25,500,000, non-use value directly in the form of natural landscapes (ecotourism) whose value is calculated using the travel cost method (TCM) and a yield of Rp 1,164,181,800 is obtained, non-use value in the form of existence services whose economic value is calculated using the contingent valuation method (CVM) of Rp.60,158,120 , as a carbon sink value which is calculated using the allometric method, and a yield of Rp. 18,161,220,000 is obtained. From the results of this study, it can be concluded that the total economic value of the Eden 100 Forest is Rp. 27,233,693,720. This proves that the existence of the Eden 100 forest is a very big economic benefit if its sustainability is maintained because it can absorb carbon which gives a great economic value. Efforts to manage and preserve Eden Forest Park 100 as a tourist attraction have been carried out in an integrated manner with the government, private sector and local communities, but need to be increased so that forests can provide environmental services in a sustainable manner.

PENGELOLAAN SAMPAH BERBASIS MASYARAKAT DI DESA PAKRAMAN PADANGTEGAL KECAMATAN UBUD KABUPATEN GIANYAR I Putu Juniartha; Made Antara; I Made Sudarma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 2 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The results of this study indicate: (1) Characteristics of waste in Pakraman Padangtegal Village consisted of 83.88% organic waste, 7.24% plastic waste, 4.42% paper waste, 2.22% bottle waste, glass waste at 1.28% and metal waste at 0.96%; (2) public perception in waste management in Pakraman Village, Padangtegal that most of the people in Pakraman Village, Padangtegal, already know about the definition of waste and the danger of waste if it is not managed properly. Besides that the community also knows the difference between organic and inorganic waste so that the process of sorting waste in the place provided can run well, and the community's perception of waste management services has gone well with the transportation of waste twice a day; (3) the participation of the Pakraman Padangtegal Village community in waste management has played a role in various stages of waste management, starting from the sorting, garbage collection and garbage disposal, which complies with waste regulations and maintains the quality of the environment in Padangtegal Pakraman Village. The participation of the tourism industry in the process of waste management in Pakraman Village, Padangtegal, can be seen as being involved in the process of sorting waste and paying monthly fees and waste fees. The community participation in the waste management process is to help the government to socialize the waste management process by carrying out waste collection activities every week and provide a place for the waste management process. Suggestions in this study are that waste managers will immediately add facilities and infrastructure for waste transportation and accelerate the expansion of waste management in the village of Pakraman Padangtegal. Keywords: Waste Management System, Pakraman Village

ESTIMASI POTENSI KARBON SEDIMEN MANGROVE PADA HUTAN ALAM DAN HUTAN REHABILITASI DI TAMAN HUTAN RAYA NGURAH RAI BALI Clara Rosy Irawati; I Nyoman Merit; I Made Sudarma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2021.v15.i02.p01

Sediments play an important role in coastal ecosystems. Apart from being a growing medium, sediment is also a place for accumulation and storage of various components including carbon. Ngurah Rai Forest Park is the largest mangrove in Bali with a large potential for sediment carbon stocks. To determine the carbon storage of mangrove sediments in natural forest and rehabilitation forest and the relationship between diameter size and vegetation type to sediment carbon in two forest types, a study was conducted using purposive sampling method based on canopy density level with three repetitions with a plot size of 10 mx. 10 meters. Sampling was divided into three depths, namely 0-30 cm, 31-60 cm and 61-100 cm. The total carbon content of mangrove sediments in natural forest is 363,491.17 Mg C or equivalent to 363,491.17 tons C and rehabilitation forest is 160,401.33 Mg C or equivalent to 160,401.33 tons C. The total sediment carbon content in Ngurah Rai Forest Park is 523,892.50 Mg C or equivalent to 523,892.50 tons C. Tree diameter had no significant effect on sediment carbon content, while vegetation type significantly affected sediment carbon content. Sonneratia alba had a significant negative effect on natural forests, while Rhizophora stylosa had a significant positive effect on rehabilitation forests. The results of the study suggest that it is necessary to maintain the preservation of mangroves and carry out rehabilitation in damaged areas. To increase the carbon content of sediments in mangrove forests, consider selecting the type of vegetation Rhizophora stylosa for the implementation of rehabilitation activities, because the type of Rhizophora stylosa makes a positive contribution to increasing the carbon content of sediments, with a note that the rehabilitation location is suitable for Rhizoporaceae species. Keywords: Mangrove; Nature Forest; Rehabilitation; Sediment.

ESTIMASI KANDUNGAN KARBON ATAS PERMUKAAN TANAH PADA HUTAN ALAM DAN HUTAN REHABILITASI MANGROVE TAMAN HUTAN RAYA NGURAH RAI BALI Made Suartana; I Nyoman Merit; I Made Sudarma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 15 No 2 (2021)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2021.v15.i02.p07

Mangroves are ecosystems that play an important role in absorbing and storing carbon from the air, one of which is in the form of mangrove vegetation biomass. As the largest mangrove area in Bali which consists of natural and rehabilitation vegetation, Taman Hutan Raya Ngurah Rai has a large potential for high carbon content. To determine the carbon potential of mangroves in natural and rehabilitation forests, a research was conducted using the purposive sampling method based on the canopy density level which was divided into 5 categories, namely very rare, rare, moderate, dense, very dense. Based on the results of measurements and calculations, the total carbon content of Ngurah Rai Grand Forest Park is 86.521,74 tons C, consisting of natural forest content 66.857,53 tons C and rehabilitation forest 19.664,21 tons C. Above ground carbon per hectare in natural forest was not significantly different from the above ground carbon per hectare in rehabilitation forest, these results indicate that the carbon content per hectare of rehabilitation forest over 20 years old is almost close to the carbon content per hectare in natural forest. The diameter of trees and vegetation types did not significantly affect the carbon content of mangroves, these results indicate that the increase in carbon stocks in each type of vegetation in natural and rehabilitation forests is in line with diameter growth. Keywords: Biomass; Density; Diameter; Canopy.

PERCEPTION AND ATTITUDE TOWARDS COMMUNITY SYSTEMS REDUCE, REUSE AND RECYCLE (3R) IN WASTE MANAGEMENT IN DILI Jose de Assis Moniz; I Made Sudarma; I Wayan Suarna
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 2 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2016.v10.i02.p09

Garbage or refuse is part of the object that is seen is not used, not used, disliked, or should be discarded in such a way so as not to interfere with survival. In general garbage from human activities but which are not biologically and are generally solid. System 3R is one of the efficient ways to carry out waste management in Dili because this way people can cultivate their garbage properly. This study aims to (1) describe the public perception of the 3R system in the city of Dili, (2) Describe the attitude of society towards the 3R system in the city of Dili, (3) to analyze the relationship between perceptions and attitudes in waste management 3R. The study was designed as a descriptive study, with an ecological approach. Data were collected using observation method, method of mutilation of documents, and interviews, and then analyzed by using qualitative descriptive analysis untu first and second formulation of the problem as well as a quantitative descriptive to the third problem. The results showed (1) the public perception of the 3R system in Dili medium category with, (2) public attitudes to the 3R system in Dili enough category with, (3) there is a positive relationship between perception and the attitude of the public in waste management with the value. The suggestions put forward, namely (1) Society of Dili to always constantly updating knowledge related to the 3R system problems in the management of solid waste. (2) The government, especially local government and city sanitation department Dili to always provide training and dissemination to the public of Dili related to the 3R program in waste management in the city of Dili.

DAMPAK PERUBAHAN IKLIM TERHADAP SEKTOR PERTANIAN DI PROVINSI BALI I Made Sudarma; Abd. Rahman As-syakur
SOCA: Jurnal Sosial Ekonomi Pertanian Vol.12, No.1, 2018
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Udayana Jalan PB.Sudirman Denpasar, Bali, Indonesia. Telp: (0361) 223544 Email: soca@unud.ac.id

Climate change is an unavoidable thing due to global warming which has a wide impact on various aspect of life. Changes of rainfall patterns, increas of the frequency of extreme climate and an increase in air and sea levels are serious impacts of climate change that will affect the agricultural sector. For Indonesia, the threat of climate change will have a serious impact on achieving sustainable developmenttargets. For the Bali Province, climate change causes disruption of water supply for various sectors, including agriculture sector. This is indicated by the decrease of land area that was very suitable for paddy rice untill 20% as long in the period 1990-2009. Due to changes in rainfall by climate change, the current cropping pattern of rice must also be adjusted. In an effort to address climate change, can be done through the plant of low emission varieties, use of organic fertilizers, adjusting cultivation techniques through water and land management and socializing the importance of agricultural insurance for educing farmers' risk due to climate change.

PENGELOLAAN HUTAN MANGROVE BERBASIS MASYARAKAT DI DESA BUDENG, KECAMATAN JEMBRANA, KABUPATEN JEMBRANA Ujang Rija Ginanjar; I Wayan Sandi Adnyana; I Made Sudarma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p02

The mangrove forest in Budeng Village is managed by local communities by forming farmer groups. The interaction of the people of Budeng Village in mangrove management, this will determine the sustainability of the mangrove area in the future. It is necessary to have the right strategy in mangrove management by following the rules of balance and sustainability. The purpose of this study is to analyze changes in mangrove forest cover, find out the perception and participation of the community in mangrove forest management and develop an ideal mangrove forest management strategy. Data collection includes using literal studies, observations, questionnaires and Forum Group Discussion. Samples in this study was 30 people. Data analysis was performed using SWOT matrix and QSPM matrix. The condition of mangrove forests in Budeng Village is relatively good, there is an increased in mangrove forest cover covering an area of 36 ha in the period from 2016 to 2021. The level of community perception in mangrove forest management excellent categories and the level of community participation is in high categories. The general strategy on mangrove forest management in Budeng Village is growth strategy. Based on the results of the SWOT analysis, there are 14 alternative strategies for mangrove forest management in Budeng Village with a priority strategy based on the results of the Total Attractiveness Score calculation is to increase the role and commitment of local governments in mangrove forest management in Budeng Village. Keywords: mangroves; perception; participation; strategy; management

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