Hasil Pencarian  ::  Simpan CSV :: Kembali

Hasil Pencarian

Ditemukan 149843 dokumen yang sesuai dengan query
cover
Diah Utami Sulistiyani
"ABSTRAK
Praktek penambangan secara terbuka di Indonesia telah banyak mengakibatkan
kerusakan lahan. Lahan yang tertutup vegetasi memiliki fungsi lingkungan, sosial,
ekonomi bagi masyarakat. Kegiatan revegetasi adalah salah satu upaya rehabilitasi
lahan pascatambang untuk mengembalikan fungsi tersebut. Melalui kegiatan
revegetasi, pemrakarsa tambang PT.X di Kabupaten Sukabumi berusaha untuk
merehabilitasi lahan pascatambangnya, namun belum ada evaluasi berhasilnya
revegetasi, padahal evaluasi berhasilnya penting dilakukan guna mengetahui adanya
pemulihan fungsi lingkungan dan sosial. Tujuan penelitian ini adalah mengevaluasi
tingkat berhasilnya revegetasi dan mengidentifikasi peran serta masyarakat sekitar
dalam kegiatan revegetasi. Metode penelitian ini secara statistik deskriptif dan
perbandingan dengan peraturan yang berlaku tentang berhasilnya revegetasi. Hasil
penelitian yaitu hasil revegetasi atas kegiatan penanaman sudah baik, namun untuk
pengelolaan material pembentuk air asam tambang belum berhasil baik, dan air
keluaran areal revegetasi belum memenuhi Baku Mutu Lingkungan. Peran serta
masyarakat masih sebatas lingkup kegiatan pelaksanaan dan jumlahnya masih
kurang. Kesimpulannya hasil revegetasi untuk penanaman sudah baik, namun
pengelolaan material pembangkit air asam tambang perlu ditelaah ulang dan peran
serta masyarakat sudah ada, namun masih perlu ditingkatkan dalam jumlah, dan
lingkup kegiatannya

ABSTRACT
Open pit-mining practices in Indonesia, has caused a lot of damage in our land. Land
covered vegetation have the function of the environmental, social, and economic for
the community. Revegetation practice is one effort among others, to rehabilitate postmining
land for the purpose to restore functions mentioned above. Through
revegetation practice, the PT. X mining initiator in Sukabumi District, will undertake
to rehabilitate the post-mining land, however, they were no evaluation performed yet
on the success of revegetation, even though the evaluation of the success of
revegetation is important to determine the recovery of environmental and social
function. The purpose of this research is to evaluate the success level of the
revegetation and to identify local community participation on the revegetation. This
method of research is descriptive statistically and the comparison with the existing
regulation regarding the success of revegetation. The results from research on
revegetation activity has not been all work well. The cultivation is successful but the
management of material of potential acid forming is not successful yet and the water
output revegetation areas do not meet the Environmental Quality Standards.
Community participation is still limited scope of implementation and the numbers are
still lacking. In conclusion the results of revegetation for planting is good, but the
management of material potential acid forming needs to be reviewed and the
communities? participation already exists, but it still needs to be improved in the
number and scope of its activities.;;"
2016
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Rizky Rahmadhani
"

Pertambangan menjadi sektor penting yang berperan dalam mendukung pembangunan dan perekonomian Indonesia. Salah satu perusahaan tambang terbesar di dunia adalah PT Freeport Indonesia yang terletak di Kabupaten Mimika, Papua. Dalam operasi pertambangannya, PT Freeport Indonesia menghadapi sejumlah masalah lingkungan, salah satunya adalah perubahan lahan bervegetasi menjadi lahan tandus yang minim vegetasi. Kerusakan lingkungan hidup yang terjadi akibat aktivitas pertambangan dapat dipulihkan melalui kegiatan reklamasi. Reklamasi lahan di wilayah pertambangan memerlukan waktu dalam jangka panjang untuk mencapai struktur dan fungsi ekosistem yang berkembang, stabil, dan matang sehingga diperlukan monitoring perubahan kondisi tutupan vegetasi di lahan bekas tambang menggunakan teknologi yang efektif dan efisien, yaitu penginderaan jauh. Dalam penelitian ini, citra penginderaan jauh yang digunakan adalah citra Sentinel-2 yang dikumpulkan dari tahun 2016 hingga 2023 untuk mendapatkan distribusi nilai indeks tutupan vegetasi (NDVI) dan tingkat kehijauan vegetasi di Area Reklamasi Grasberg. Variabel yang digunakan untuk menganalisis perubahan tutupan vegetasi selama proses revegetasi di Area Reklamasi Grasberg adalah indeks vegetasi (NDVI), jenis vegetasi, tahun reklamasi, ketinggian, kemiringan lereng, dan arah lereng. Penelitian ini menunjukkan bahwa semakin bertambah waktu reklamasi, maka semakin bertambah luas area yang tertutupi vegetasi dengan tingkat kehijauan sedang dan tinggi yang ditunjukkan dari hasil regresi linier yang bernilai posistif. Perubahan tutupan vegetasi di Area Reklamasi Grasberg menunjukkan tren peningkatan tutupan vegetasi seluas 379,66 hektar atau 98,71% dari total luas area reklamasi dan sisanya mengalami tren penurunan berdasarkan hasil analisis tren Sen’s Slope+Mann Kendall. Perubahan tutupan vegetasi di Area Reklamasi Grasberg tidak dipengaruhi oleh jenis vegetasi karena karakteristik vegetasi di area tersebut cenderung sama. Sedangkan perubahan tutupan vegetasi di Area Reklamasi Grasberg berdasarkan hasil uji korelasi dipengaruhi oleh faktor kondisi topografi. Ketinggian wilayah tidak menunjukkan pengaruh yang kuat terhadap tutupan vegetasi tetapi kemiringan lereng yang curam akan memicu terjadinya tingkat kehijauan tutupan vegetasi yang rendah dan sebaliknya. Sedangkan vegetasi yang berada di lereng yang menghadap ke arah timur memiliki tingkat kehijauan yang tinggi karena mendapatkan penyinaran matahari yang cukup. Pemantauan perubahan tutupan vegetasi di area reklamasi bekas tambang sangat bermanfaat untuk kebijakan pengelolaan lahan di area pertambangan dan perencanaan reklamasi.


Mining is an important sector that plays a role in supporting Indonesia's development and economy. One of the largest mining companies in the world is PT Freeport Indonesia, located in Mimika Regency, Papua. In its mining operations, PT Freeport Indonesia faces a number of environmental problems, one of which is the change of vegetated land into barren land with minimal vegetation. Environmental damage caused by mining activities can be restored through reclamation activities. Land reclamation in mining areas takes a long time to achieve a developed, stable and mature ecosystem structure and function so that it is necessary to monitor changes in vegetation cover conditions in post-mining land using effective and efficient technology, namely remote sensing. In this research, the remote sensing images used were Sentinel-2 images collected from 2016 to 2023 to obtain the distribution of vegetation cover index (NDVI) and vegetation greenness in the Grasberg Reclamation Area. The variables used to analyze changes in vegetation cover during the revegetation process in the Grasberg Reclamation Area are vegetation cover index (NDVI), vegetation type, reclamation year, elevation, slope, and slope direction. This study shows that as the reclamation time increases, the area covered by vegetation with medium and high greenness levels increases, as shown by the positive linear regression results. Changes in vegetation cover in the Grasberg Reclamation Area show an increasing trend covering 379.66 hectares or 98.71% of the total reclamation area and the others show a decreasing trend based on the results of Sen's Slope+Mann Kendall trend analysis. Changes in vegetation cover in the Grasberg Reclamation Area are not influenced by vegetation type because the characteristics of vegetation in the area tend to be the same. Meanwhile, changes in vegetation cover in the Grasberg Reclamation Area based on the results of the correlation test are influenced by topographic conditions. The elevation of the area does not show a strong influence on vegetation cover but steep slopes will trigger a low level of vegetation cover greenness and vice versa. The vegetation on the east-facing slope has a high level of greenery because it gets enough sunlight. Monitoring changes in vegetation cover in ex-mining reclamation areas is very useful for land management policies in mining areas and reclamation planning."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2024
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Meilina Wijayanti
"In compliance with government regulations, mining companies in Indonesia are obliged to reclaim and return a post-mined area into its pre-mining condition. Revegetation, as part of reclamation activity, performs a significant role in the rehabilitation of degraded post-mined areas to restore their productive land uses. Hence, this study aimed to assess tree growth on the reclamation sites across four mining companies in East Kalimantan, South Sulawesi, South Sumatra, and West Java in Indonesia and to evaluate whether the companies have met the legal requirements set for site revegetation. The success parameters were based on the applicable regulations of the Ministry of Environment and Forestry (MOEF) P.60/Menhut-II/2009 and tree growth parameters (stem diameter, total height and basal area). The parameters set by MOEF included revegetation realization, survival rate, tree density, tree health, species composition and rotation length. The four mining companies applied the two-phase planting method that included the planting of Enterolobium cyclocarpum for the first phase; and in the second phase, the slow growing native species, such as Intsia palembanica, Sycygium polyanthum, Shorea spp. and Elmerrillia tsiampaca. The tree growth parameters showed different performances over species and reclaimed sites. An extremely high growth of stem basal area of 57.6 m2/ha in 11 years, was recorded in the E. tyclocarpum stand of the Mining Company in South Sulawesi. All four mining companies strived to comply with the regulation with scores of revegetation success ranging from 15 to 25 out of 25 possible points. However, these favorable results may not be representative of all the mining companies, as the ones assessed were only those voluntarily supporting this research. Moreover, each of the four companies made some distinct efforts in implementing post-mining revegetation, such as by establishing plots of Melaleuca cajuputi trees producing cajuput oil and polycultures of native species."
Bogor: Seameo Biotrop, 2020
634.6 BIO 27:3 (2020)
Artikel Jurnal  Universitas Indonesia Library
cover
Gurning, Edy Halomoan
"ABSTRAK
Lahan gambut di Kabupaten Nagan Raya telah beralih fungsi dari Hutan Rawa Gambut Tripa menjadi perkebunan kelapa sawit. Kondisi lahan semakin terdegradasi menuju kerusakan saat pengelolaan dan pemanfaatan tidak dilaksanakan dengan baik. Perlu upaya perbaikan lahan gambut, salah satunya dengan revegetasi. Untuk mencapai upaya tersebut harus diketahui terlebih dahulu model revegetasi yang tepat, komponen revegetasi yang dibutuhkan, dan nilai ekonomi pelaksanaan upaya revegetasi. Studi ini menggunakan pendekatan kualitatif dengan metode campuran (mixed methods). Teori hutan berkelanjutan akan digunakan untuk dampak dari upaya revegetasi. Hasil yang didapat adalah model revegetasi berupa agroforestri dan biaya yang dibutuhkan untuk melakukan upaya revegetasi lahan gambut sebesar Rp. 225,25 miliar dan biaya tertinggi adlah sebesar Rp. 275,29 miliar. Proyeksi selama 10 (sepuluh) tahun setelah penanaman, upaya revegetasi berdampak terhadap aspek lingkungan yang mencakup pada ketersediaan cadangan karbon, penyerapan karbon, penghasil oksigen, dan ketersediaan air. Dampak terhadap aspek ekonomi,berupa nilai cadangan karbon, produk hutan non-kayu, penghasil oksigen, ketersediaan air, nilai atas dasar penggunaan, nilai kayu, penyerap karbon, nilai pencegah banjir, dan nilai keanekaragam hayati. Dampak terhadap aspek sosial berupa penyerapan tenaga kerja dan sebanyak 1400 orang akan menerima pendidikan dan pelatihan guna peningkatan pengetahuan dan keterampilan terhadap upaya revegetasi.

ABSTRACT
The function of peatland in Nagan Raya District has been changed as the Tripa Peatland Forest has been changed to a palm oil plantation. The land condition has been degraded as its management and utilization has not been well implemented. One type of the peatland restoration is revegetation. To be able to apply a proper revegetation process, an appropriate revegetation model should be developed to calculate the implementation cost. This study used a qualitative approach with mixed methods. Theory on sustainable forestry is used to measure the impact of revegetation effort. The result of this study shows that appropriate revegetation model for study area is agroforestry model and the lowest cost needed for revegetation process in the peatland is Rp225,25 billion and the highest cost is Rp275,29 billion. The ten-year projection after revegetation process shows that this revegetation process has certain impacts on environmental aspects, which are: carbon storage, carbon absorption, carbon producer, and water supply. Impacts on economic aspect are: value of carbon storage, non-timber products of the forest, oxygen producer, water supply, value on basic utilization, value of timber, carbon absorption, the value of flood mitigation, and the value of biodiversity. Impacts on social aspect are: employment opportunity and a total of 1400 people will be trained improving their knowledge and skill on revegetation process."
Depok: Program Pascasarjana Universitas Indonesia, 2016
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Law, Dennis L.
New York: Van Nostrand Reinhold Company, 1984
631.64 LAW m
Buku Teks SO  Universitas Indonesia Library
cover
Sibuea, Tulus T.H.
"Sumber air utama untuk wilayah Sukabumi tertumpu pada kawasan pegunungan Gunung Gede-Pangrango dan Gunung Halimun- Salak. Kawasan tersebut adalah hulu dari daerah aliran sungai Cimandiri yang mengalir ke selatan wilayah Sukabumi sampai ke Iaut di Kota Pelabuhanratu, ibukota Kabupaten Sukabumi.
Pemanfaatan air di kawasan hulu berupa air tanah dan air mata-air selain untuk kebutuhan rumah tangga juga untuk industri. Keuntungan dari pemanfaatan air tersebut oieh industri umumnya belum disertai membayar beaya pemulihan.
Penggunaan air cenderung meningkat secara eksponensial, sedangkan pasokan air cenderung melambat akibat rusaknya hutan di daerah tangkapan airnya. Internalisasi pengelolaan daerah tangkapan air untuk penyediaan air baku dilakukan untuk mengatasi masalah tersebut
Tujuan penelitian adalah mendapatkan gambaran kondisi air tanah dan perkiraan nilai air tanah melalui pendekatan perhitungan nilai ekonomi manfaat lokal daerah tangkapan airnya, persepsi dan keharusan pengguna air tanah untuk membayar beaya pengelolaan daerah tangkapan airnya.
Hasii penelitian diharapkan dapat memberikan informasi untuk melestarikan sumberdaya air dan melestarikan fungsi lingkungan alam. Informasi dari penelitian ini dapat memperkaya khasanah pengetahuan untuk pertimbangan dalam perencanaan pembangunan daerah tersebut.
Penelitian dilaksanakan dan bulan Januari sampai dengan Juni 2003 di Kecamatan Cicurug, Kecamatan Cidahu, Kecamatan Parakansalak dan Kecamatan Parungkuda di kaki Gunung Salak dalam wilayah Kabupaten Sukabumi. Daerah penelitian berada pada Kompleks Gunungapi Tua di wiilayah resapan utama dan juga berada di wilayah pelepasan. Penelitian bersifat ex post facto melalui pendekatan kualitatif dan kuantitatif. Data primer dan sekunder dikumpulkan dengan metode survei dan studi pustaka.
Hipotesis yang diajukan adalah tersedianya air tanah akan berlanjut jika neraca air terjaga keseimbangannya dan daerah tangkapan air terlindungi.
Hasii kajian memperlihatkan bahwa air tanah ada di 100-300 meter di bawah permukaan tanah setempat. Pelepasan air tanah berupa mataair ada yang mencapai 400 lt/dt dan penurapan melalui sumur bor dengan debit mencapai 2 It/dt hingga 5 lt/dt. Neraca keseimbangan air di daerah penelitian mengaiami defisit air tanah sebanyak 4,4 juta m3 pada tahun 2003. Kecenderungan air tanah berkurang adalah akibat perubahan kondisi tutupan lahan disertai dengan ekstraksi air tanah yang terus bertambah.
Hasil analisis ruang dan wilayah daerah penelitian memperlihatkan adanya interaksi antara daerah tangkapan air dan daerah perlepasan serta lokasi cadangan air tanah. Kegiatan ekonomi yang menggunakan air tanah tidak terpisahkan dari kawasan hutan Iindung Gunung Salak sebagai daerah tangkapan airnya. Pemanfaatan air tanah di kawasan hulu akan dapat menghilangkan peluang kegunaannya bagi kawasan hilirnya. Sepatutnya kawasan hulu menjadi kawasan tumbuh lambat yang diprogramkan untuk fungsi konservasi atau lindung karena menjadi satu kesatuan ekosistem dari hulu sampai ke hilir.
Air adalah satu fase bentuk sumberdaya alam yang secara alamiah mengalami siklus perubahan bentuk. Sumberdaya alam ini pada fase bentuk air menjadi kebutuhan dasar semua mahluk hidup di bumi. Sebagai kebutuhan dasar, air tidak dapat menjadi komoditi (barang ekonomi) yang dapat diperdagangkan dan diberi label harga. Prinsip yang memandang air sebagai komoditi (barang ekonomis) akan menghilangkan fungsi ekologis, sosial, religius dan budaya.
Pengguna air tanah dapat dikenakan beaya masa siklus air. Beaya masa siklus air adalah beaya kerugian yang dialami oleh generasi masa depan akibat pemanfaatan sumberdaya alam masa kini. Nilai masa siklus air dihitung melalui pendekatan valuasi manfaat Iokal sumberdaya hayati dan manfaat lokal sumber air.
Beaya masa siklus air di Iokasi penelitian per hektar hutan sebesar Rp. 2.924.890,- setiap tahunnya. Persepsi dan pemahaman tentang beaya masa siklus air belum sepenuhnya disadari oleh perusahaan air minum dalam kemasan. Akibatnya adalah masih banyak perusahaan belum bersedia ikut berperanserta daiam kegiatan konservasi daerah tangkapan air.
Berdasarkan hasil analisis dan pembahasan dalam tesis ini, dapat disimpulkan sebagai berikut:
1. Tersedianya air tanah berkurang karena terganggunya keseimbangan neraca air akibat penurapan melalui sumur bor lebih besar dan suplesi air tanah.
2. Beaya bagi tersedianya air adalah beaya kerugian yang akan ditanggung oleh generasi masa depan.
3. Pengetahuan dan pemahaman tentang beaya masa siklus air belum sepenuhnya disadari oleh pengusaha air tanah.
Saran dari penulis dalam tesis ini adalah; (1) Perlu dilakukan segera pengendalian ekstraksi air tanah melalui penataan ulang SIPA yang telah dikeluarkan, penutupan sumur bor yang tidak memiliki ijin atau melebihi debit yang diijinkan, penghentian ijin baru dan peningkatan pengawasan pemanfaatan air tanah; (2) Memperbesar suplesi air tanah meIaIui pengendalian pembangunan permukiman di daerah tangkapan air, menghutankan kembali Iahan yang bersudut Iereng lebih dari 30% dan pembangunan ?embung" atau ?waduk kecil" sebagai sumber air bersih untuk memenuhi kebutuhan penduduk; (3) Perlu disosialisasikan secara luas kepada masyarakat tentang beaya masa siklus air. (4) Perlu disosialisasikan paradigma air sebagai hak asasi manusia. Setiap orang berhak memperoleh air bersih khususnya air minum dan kewajiban negara untuk memenuhinya.

The main source of water in the Sukabumi is the reservoirs found in the Gede Pangrango and Halimun Salak highlands. These areas are the up river of the Cimandiri River which flows south through Sukabumi all the way to the Southern coastal city of Pelabuhan Ratu, the capital city of Sukabumi District. These water reservoirs, ground reservoirs and spring water, have been used in the upper regions for many years. The use of the ground water for domestic needs and industrial needs is increasing rapidly. Revenue through the use of these water resources by industry has not been charged with conservation cost of these resources.
As the use of water has increased exponentiaily, supply tends to decrease due to the destruction of the upper catchments areas that are now being developed or destroyed. Internal control in the areas with their hydrology functions are being assessed in order to over come the problem before it gets out of hand.
The aim of this study is to estimate the current ground water condition, its value through analysis of local economic value of water catchments area and the current price of water. To understand perceptions and ability of water consumers to pay reservation cost of the water catchments area.
Results would enrich information in the effort to preserve natural water resources and natural environment as a unified natural resource. Information obtained may also be useful in future planning and development of these areas.
This research has been carried out in the Counties of Cicurug, Cidahu, Parakansalak, and Parugkuda, from January to June of 2003. The focus area is located at the foot of the Salak Mountain in the area of Sukabumi district. The form of research that has been used is ex post facto through qualitative and quantitative approach. The primary and secondary data were was collected through surveys and studies of literatures.
The result of studies has shown that the area in the vicinity of Gunung Api Tua is located in the main water absorption area, which is also the area of ground water release. Ground water potential is found to be between 100-300 meters below ground surface. The release of ground water from springs is at a rate of 400 It/sec and extracted using drill-wells at a rate of 2 lt/sec up to 5 lt/sec. The balance water measured in this area shows a deficit of as much as 4,4m3 in the year 2003. Ground water deficit tends to continue declining as result of man-made change in the soil covering due to building constructions agriculture as such that disturbs the seepage of rain water into the ground, hence the replenishment, while water extraction continue to increase.
Result of space and area analysis of research area shows that an interaction exists between the water catchments areas, water releasing areas, and the areas where the ground water is naturally stored. Therefore, economic sectors benefit from the ground water supply should not be freed from their responsibility in forest conservation and protection of Salak Mountain as water catchments areas. Using ground water in water areas will eventually reduce or even eliminate the benefit for water draining areas. It should be understood that water catchments area must be considered as areas of conservation and protection, because of its ecosystem unity from water-catchments area to water-released areas.
Liquid water is one phase in the cycle of this resource, which is naturally changing in form and state. In its liquid phase, water is a basic necessity for all living organism on this earth. As a basic necessity, water cannot become a commodity to be commercialised and given a price label. Considering water as eoonomic commodity will lose its ecological, social, religious and cultural functions.
Water users could be charged with water cycling costs. Water cycle cost is atpenses to cover losses which wlll be experienced by future generations due to present resource ulilisation. The value of water cycle period is calculated by local usage valuation approach of the biological resources and the local use of water resource.
The annual per hectare expenses of water cycle at the site of investigation is calculated at Rp. 2.924.890,-. Perception and understanding in the expenses for water cycling period have not been fully realized by water packing companies. Consequently there are still a great number of companies that are not willing to participate in the effort of water catchments area.
Water is only one phase of a natural cycle that is always moving. This natural resource when it is in the water phase is essential to the life of all animals on earth. As a basic need water can not beoome a commodity that can be sold with a label and a price, it is priceless. The principle that view water as a commodity will absolutely destroy its ecological, social, and cultural function and even will threaten our religious foundations. All humans have rights to have clean water, and it is not a commodity.
Water cycle cost in research area per hectare forest is Rp. 2.924.890,- every year. Perceptions and understanding about water cycle cost is not completely realized by water-packing company. As result, there still many companies that weren?t willing to participate in conservation program of water-catchments area.
Conclusions of research result and discussion in this thesis are: 1) There is deficit of ground water in research location as result of disturbances the equilibrium of water scale. The disturbances is caused by the used of ground water through artificial pump-well that larger than infiltrate of water volume. There is company that used ground water in water-absorbent areas and water-released areas In Salak Mountain areas. Ground water that is extracted from those areas are products of conservation forest water-catchments area; 2) Water cycles should be included in production total cost by water ground user. The value of water cycles cost can be calculated through valuation approach of local benefit of natural resources and local benelit of water resources; 3) Even though the water cycles cost cannot implemented yet for ground water benefit management, the valuation approach can be easily used by people in community so that the used of the valualjon need to be socialized.
Suggestions from writer in this thesis are: a) we need to do more detail assessment about ground water storage, b) it is necessary to socialized water paradigm as human rights. Every human have rights to have clean water especially drinking water and it is obligation of the country to fulfil it; c) Some studies should be done so that water- cycle cost policy can be implemented. The study that can be done is study of scarcity rent and extraction cost; d) To minimize bias from calculating economic benefit from natural resources, we need to choose respondents accurately from areas that closed or those who lived near the forest.
"
Program Pascasarjana Universitas Indonesia, 2003
T11080
UI - Tesis Membership  Universitas Indonesia Library
cover
Fachmi Azhar Aji
"PT X merupakaan perusahaan penetasan telur ayam yang menerapkan sistem daur ulang air limbah untuk mengurangi pengambilan air tanah dan pembuangan air limbah. Sistem daur ulang air limbah yang berkelanjutan harus layak secara teknologi, ekonomi dan sosial. Namun masalah dalam penelitian ini adalah ketiadaan informasi kelayakan dan strategi pengembangannya. Tujuan dari penelitian ini adalah mengevaluasi keberlanjutan penerapan sistem daur ulang air limbah di PT X dan merumuskan strategi pengembangannya. Metode penelitian yang digunakan diantaranya mengevaluasi efisiensi penggunaan air tanah, penurunan konsentrasi pencemar air limbah, analisis biaya manfaat, analisa persepsi & tingkat pengetahuan masyarakat kemudian pengembangan strategi dengan metode SWOT. Hasil penelitian menunjukkan sistem daur ulang air limbah mampu meningkatkan efisiensi penggunaan air tanah secara rata-rata sebesar 30,18%, performa penurunan konsentrasi pencemar untuk parameter BOD5, COD, TSS, Minyak dan lemak diatas 70% dan mampu memenuhi baku mutu yang diharapkan, dan memiliki kelayakan ekonomi dengan nilai NPV positif dan BCR>1. Selain itu mayoritas masyarakat sekitar perusahaan memiliki pengetahuan lingkungan lebih dari cukup dan perspektif positif terhadap daur ulang air limbah PT X. Strategi peningkatan kekuatan & peluang cocok diterapkan untuk pengembangan berkelanjutan. Secara umum daur ulang air limbah layak diterapkan dalam industri sejenis. Kesimpulan dari penelitian ini adalah sistem daur ulang air limbah yang diterapkan PT X memiliki kelayakan teknologi, ekonomi dan sosial dan dapat dikembangkan melalui peningkatan teknologi daur ulang air limbah dan pemanfaatan peluang eksternal

PT X is a poultry hatchery company that implements a wastewater recycling system to reduce groundwater extraction and wastewater disposal. The sustainable wastewater recycling system must be technologically, economically, and socially feasible. However, the problem in this research is the lack of feasibility information and development strategies. The objective of this research is to evaluate the sustainability of implementing the wastewater recycling system at PT X and formulate development strategies. Research methods include evaluating the efficiency of groundwater use, reducing pollutant concentrations in wastewater, cost-benefit analysis, analyzing community perceptions and knowledge levels, and developing strategies using the SWOT method. The research results indicate that the wastewater recycling system can improve the efficiency of groundwater use by an average of 30.18%. The performance in reducing pollutant concentrations for parameters such as BOD5, COD, TSS, oil, and fat is above 70%, meeting the expected quality standards. It is economically viable with a positive NPV and BCR > 1. Additionally, the majority of the community around the company has sufficient environmental knowledge and a positive perspective on PT X's wastewater recycling. Strengthening internal strengths and capitalizing on external opportunities are suitable strategies for sustainable development. In conclusions, wastewater recycling is feasible for similar industries. The conclusion of this research is that PT X's implemented wastewater recycling system is technologically, economically, and socially feasible and can be developed through improved wastewater recycling technology and leveraging external opportunities."
Jakarta: Sekolah Ilmu Lingkungan Universitas Indonesia, 2024
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Andhika Nurul Wahidah
"DAS Ciletuh di selatan Kabupaten Sukabumi masih berkembang dalam hal aksesibilitas, sumber pangan, pariwisata, dan penggunaan sumber daya lainnya. Tujuan riset ini untuk mengukur luas perubahan penggunaan lahan pada tingkat potensi longsor dan menganalisis pengaruhnya pada penggunaan lahan untuk merumuskan strategi penggunaan lahan berbasis ekosistem di DAS Ciletuh. Metode riset menggunakan Cellular Automata–Markov Chain untuk memprediksi penggunaan lahan tahun 2032, kemudian indeks Storie untuk mengetahui potensi longsor, analisis deskriptif untuk evaluasi penggunaan lahan berkelanjutan, dan Analytic Hierarchy Process untuk penyusunan rekomendasi strategi mitigasi risiko longsor. Hasil riset menunjukkan setiap sepuluh tahun terjadi penurunan luas hutan tidak sejenis dan hutan sejenis, sedangkan peningkatan luas pada permukiman, tegalan, dan perkebunan. Tiga perempat wilayah studi memiliki potensi longsor sedang, sedangkan wilayah berpotensi longsor tinggi terus bertambah. Daerah berpotensi longsor tinggi dan sangat tinggi berada pada lereng terjal dan sangat terjal yang digunakan untuk tegalan atau tanah terbuka. Baik masyarakat maupun ahli menganggap strategi keberlanjutan penggunaan lahan dengan intensifikasiekstensifikasi lebih diprioritaskan daripada diversifikasi dan migrasi, sedangkan aspek sosial budaya menjadi prioritas dalam mitigasi risiko longsor. Kesimpulan riset menunjukkan kapasitas sosial masyarakat dalam penggunaan ruang dan lahan, terutama secara intensif dapat menjadi alternatif keberlanjutan penggunaan lahan yang akan memitigasi risiko longsor di DAS Ciletuh.

Ciletuh watershed in the southern of Sukabumi Regency is still developing regarding accessibility, food resources, tourism, and other resource management. This research aims to measure land-use change towards landslide potential and analyze its effect on land management to formulate ecosystem-based land management strategies in the Ciletuh watershed. This research uses Cellular Automata–Markov Chain to predict land-use change in 2032, Storie Index to determine landslide potential, descriptive analysis to evaluate land-use sustainability, and Analytic Hierarchy Process to formulate recommendations for landslide risk mitigation strategy. The result shows a decrease every ten years in unsimilar forests and similar forests. Meanwhile, the increase occurred in settlements, moors, and plantations. Three-quarters of the Ciletuh watershed has moderate landslide potential, whereas the high potential area for landslide increases. Areas with a high and very high potential for landslides are steep or very steep with various land use, either moor, settlement, or open ground. Both communities and experts consider intensification-extensification treatment for land use sustainability rather than diversification and migration. Meanwhile, sociocultural aspects prioritize landslide mitigation. The analysis results conclude that the community's social capacity for space and land use, especially intensively, can be an alternative to land-use sustainability that will mitigate the risk of landslides in the Ciletuh watershed."
Jakarta: Sekolah Ilmu Lingkungan Uiniversitas Indonesia, 2021
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Uswatun Khasanah
"Geopark sebagai salah satu upaya untuk mencapai pembangunan berkelanjutan dicirikan dengan variasi warisan geologi yang seringkali berasosiasi dengan multi bahaya.  Masalah dalam penelitian adalah adanya potensi ketidakberlanjutan Geopark oleh ancaman multi bahaya. Tujuan penelitian yaitu menganalisis potensi multi bahaya, menilai kerentanan keberlanjutan Geopark, menilai upaya kolektif masyarakat dan menyusun konsep keberlanjutan Geopark. Metode yang digunakan adalah metode analisis spasial, Spatial Multi Criteria Evaluation (SMCE), analisis deskriptif eksploratif dan analisis Strength, Weakness, Opportunity, Threat (SWOT). Hasil penelitian menunjukkan tingkat multi bahaya sedang (68,55%), rendah (25,27%) dan tinggi (6,18%). Kerentanan keberlanjutan Geopark menunjukkan tingkat kerentanan keberlanjutan tinggi (4 Desa), sedang (3 Desa) dan rendah (2 Desa). Upaya kolektif masyarakat belum terbentuk. Konsep keberlanjutan Geopark pada kawasan multi bahaya berbasis masyarakat dilakukan dengan integrasi dan elaborasi aspek lingkungan, yaitu prioritas mitigasi berdasarkan sebaran multi bahaya, geodiversitas, biodiversitas, budaya, sosial ekonomi dan upaya kolektif masyarakat serta dengan kebijakan penguatan interaksi kolaboratif antar pemangku kepentingan.

Geoparks as an effort to achieve sustainable development, are characterized by a variety of geological heritage, often associated with multi-hazard. The is the potential for Geopark's unsustainability due to multi-hazard threats. The research aims to analyze the potential for multi-hazards, assess the vulnerability of Geopark sustainability, assess the collective action, and develop a concept of Geopark sustainability. The methods are spatial analysis methods, Spatial Multi-Criteria Evaluation (SMCE), exploratory descriptive analysis, and Strength, Weakness, Opportunity, and Threat (SWOT) analysis. The results showed that the multi-hazard levels were moderate (68.55%), low (25.27%) and high (6.18%). Geopark sustainability vulnerability shows high (4 villages), medium (3 villages), and low (2 villages) sustainability vulnerability levels. Collective action has not yet been formed. The concept of Geopark sustainability in community-based multi-hazard areas is carried out by integrating and elaborating environmental aspects, mitigation priorities based on the distribution of multi-hazards, geodiversity, biodiversity, culture, socio-economics, and collective action, and the policies to strengthen collaborative interactions between stakeholders.

 

Keywords: collective action, Geopark sustainability concept, multi-hazard, vulnerability to Geopark sustainability."

Jakarta: Sekolah Ilmu Lingkungan Universitas Indonesia, 2024
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Diah Ayu Wulandari
"Emas merupakan jenis logam yang bersifat lunak dan mudah ditempa yang memiliki nilai ekonomis tinggi. Saat ini emas sedang menjadi tren hidup di kalangan manusia modern. Dalam kegiatan eksplorasi emas, penginderaan jauh dapat dimanfaatkan untuk menunjang analisis bidang geologi dan mineral dalam mengefektifkan kegiatan ini. Pada penelitian ini, penginderaan jauh dimanfaatkan untuk meneliti sebaran potensi emas epitermal dengan asosiasi mineral yang berhubungan serta variabel geologi dan mengintegrasikannya dalam sistem informasi geografis.
Tujuan penelitian ini mencoba untuk mendapatkan sebaran potensi emas epitermal di daerah penelitian. Metode yang dipergunakan dalam penelitian ini adalah defoliant technique dan Fuzzy Logic dengan analisis spasial deskriptif.
Hasil penelitian dianalisis berdasarkan luas sebaran pada wilayah sekitar Simpenan - Ciemas di mana hasilnya menyimpulkan sebaran potensi emas epitermal potensi tinggi menyebar di bagian tengah dan barat daya lokasi, sedangkan potensi rendah menyebar di bagian tenggara wilayah penelitian. Penyebaran ini juga mengikuti arah sebaran struktur geologi (yang menyebar merata seluruh wilayah penelitian), sebaran litologi potensial, dan zona alterasi (terutama alterasi propilitik dan alterasi argilik lanjut). Validasi hasil potensi sebaran diukur berdasarkan 79 titik sampel dan dihasilkan nilai ketelitian 96%.

Gold is a type of metal that is soft and malleable that has a high economic value. Now, gold is becoming a life trend in modern human life. In gold exploration, remote sensing can be used to analyze geological and mineral sector. In this research, remote sensing has used to identify the distribution of epithermal gold associated with mineral associations and geological variables and integrate them in geographic information systems.
The aim of this research is trying to get the distribution of epithermal gold in the experimental zone. The method is using defoliant technique and fuzzy logic with spatial analytical description.
The research has analyzed by distribution area in Simpenan - Ciemas where the result concludes that the high potential distribution of epithermal gold in the area of exploration is spread in central and southwest of research area, while the low potential area is spread in the southeast of research area. This distributions also following the geological structure in the direction distribution (which is spread evenly throughout the location of this research), the distribution of potential lithology, and alteration zones (mainly propylitic alteration and advanced argillic alteration). The validation of potential has measured by 79 sample points and resulted carefulness value 96%.
"
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2015
S59336
UI - Skripsi Membership  Universitas Indonesia Library
<<   1 2 3 4 5 6 7 8 9 10   >>