Judul: Model ekowisata kawasan hutan mangrove berbasis daya dukung fisik kawasan dan resiliensi ekologi (kasus ekowisata mangrove Blanakan, Subang, Jawa Barat)
Abstrak: Increasing tourist arrivals at Blanakan mangrove triggers a threat to environment if the exploitation exceed its carrying capacity. The aims of this study are (1) to identify potential attraction and evaluate biophysical conditions, (2) to understand impact of tourism activities to Blanakan mangrove ecotourism, (3) to calculate the physical carrying capacity and identify the type of ecological resilience, and (4) to develop management model based on physical carrying capacity and ecological resilience. The results showed that Blanakan mangrove ecotourism has mangrove vegetation and crocodiles breeding as attractions. Characteristics of visitors Blanakan dominated by males (63.3%), age group at most 31-40 years (36.7%), educational background senior high school (46.67%), most jobs are private employees (30%), most visitors coming from West Java (60%). The biophysical and chemistry evaluation showed that Blanakan mangrove ecotourism has a capacity to support tourism activities. Biological biodiversity aspects has proven an ability to hold up tourism development. The plankton and makrobenthos diversity index showed that all station were slightly polluted. Effective physical carrying capacity of Blanakan mangrove ecotourism is 825 people per day. Ecological carrying capacity of outing activity is 530 people per ha, boating 106 people per ha and camping 174 people per ha. The water ecosystem resilience of the mangrove ecotourism Blanakan is resilient type which shows that the ecosystem has an ability to recover themselves. This resilient type assure that any disruption upon the ecosystem would automatically recovered if the carrying capacity was not exceedingly utilized. Management model were developed based on four scenarios, they are bussines as usual (BAU), pro environment, pro management, and pro community. Pro environmental scenarios is recommended to be the ideal model management for Blanakan mangrove ecotourism. Pro enviroment scenario showed the ecological sustainability indicators were not exceeded the physical carrying capacity. These scenario has positive impact on the tourism management longer than the other scenarios, the quality of the environment improved, the arising costs of environmental damage could be minimized. The sustainable management strategy of Blanakan mangrove ecotourism were to develop the tourism product and facilities, visitor management, pollution management and increasing assimilation capacity, and community participation.
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Judul: Pengembangan Ekowisata di Mangrove Lindung Angke Kapuk. Jakarta Utara
Abstrak: Pengembangan ekowisata mangrove merupakan suatu cara untuk mendukung adanya konservasi lingkungan dan meningkatkan keikutsertaan masyarakat dalam mendukung kelestarian lingkungan agar mempertahankan keutuhan, keaslian, keunikan serta kelestarian suatu ekosistemnya. Penelitian ini bertujuan menganalisis kesesuaian ekosistem mangrove untuk ekowisata, menghitung daya dukung kawasan, dan merumuskan strategi pengembangan ekowisata Mangrove Lindung Angke Kapuk, Jakarta Utara. Metode penelitian yang digunakan, yaitu dengan survei/observasi lapangan. Pengambilan sampel kerapatan mangrove menggunakan metode petak contoh ganda yang dilakukan secara Purposive sampling yang mewakili. Beberapa fasilitas telah tersedia dan dapat dikembangkan untuk kegiatan seperti tracking mangrove, area duduk santai, dan memancing. Strategi pengelolaan kawasan ekowisata Mangrove Lindung Angke termasuk dalam kategori cukup baik, sehingga perlu dimaksimalkan strategi pengembangan ekowisata dengan memprioritaskan tiga alternatif strategi utama., The development of mangrove ecotourism is a way to support environmental conservation and increase community participation in supporting environmental sustainability in order to maintain the integrity, authenticity, uniqueness and sustainability of an ecosystem. This study aims to analyze the suitability of mangrove ecosystems for ecotourism, calculate the carrying capacity of the area, and formulate a strategy for developing ecotourism in the Mangrove Protected Angke Kapuk Ecotourism, North Jakarta. The research method used is survey/field observation. Mangrove density sampling was taken using a multiple sample plot method which was carried out by representative purposive sampling. Several facilities are available and can be developed for activities such as mangrove tracking, relaxing sitting areas, and fishing. The strategy for managing the Angke Protected Mangrove ecotourism area is in the fairly good category, so it is necessary to maximize the ecotourism development strategy by prioritizing three main strategic alternatives.
Keyword: area carrying capacity, development strategy, ecotourism mangroves

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition