Judul: Analysis of the Economic and Environmental Impact of Tebet Eco Park, South Jakarta
Abstrak: Ruang Terbuka Hijau (RTH) di DKI Jakarta pada tahun 2023 mengalami peningkatan sebesar 1,08% dari tahun 2018. Tebet Eco Park merupakan salah satu RTH yang dikelola oleh Dinas Pertamanan dan Hutan Kota DKI Jakarta yang memiliki luas lahan sebesar 7,3 hektare. Tebet Eco Park merupakan taman interaktif yang pada tahun 2023 jumlah wisatawannya mencapai 555.853 kunjungan. Tujuan dari penelitian ini, yaitu: (1) Mengestimasi nilai ekonomi Tebet Eco Park menggunakan pendekatan Individual Travel Cost Method, (2) Mengestimasi dampak ekonomi yang ditimbulkan akibat adanya kegiatan wisata di Tebet Eco Park bagi masyarakat sekitar. (3) Menganalisis dampak lingkungan yang ditimbulkan akibat adanya kegiatan wisata di Tebet Eco Park dengan pendekatan persepsi kepada masyarakat. Metode yang digunakan adalah model regresi linear berganda, analisis pendapatan, dan statistika deskriptif. Hasil dari penelitian ini yaitu: (1) Faktor-faktor yang berpengaruh dalam fungsi permintaan wisata di wisata Tebet Eco Park adalah biaya perjalanan, pendidikan, pendapatan, dan lama berkunjung. Adapun nilai ekonomi wisata dari Tebet Eco Park adalah Rp. 153.004.832.753. (2) Dampak ekonomi yang dihasilkan masih relatif rendah disebabkan karena pengeluaran wisatawan masih ada yang dikeluarkan di luar kawasan Tebet Eco Park. (3) Dampak lingkungan berdasarkan persepsi masyarakat sekitar berada di kriteria sangat baik., Green Open Space (RTH) in DKI Jakarta in 2023 increased by 1.08% from 2018. Tebet Eco Park is one of the RTH managed by the DKI Jakarta Parks and City Forest Service, with a land area of 7.3 hectares. Tebet Eco Park is an interactive park that recorded 555,853 visits in 2023. The objectives of this study are: (1) To estimate the economic value of Tebet Eco Park using the Individual Travel Cost Method, (2) To estimate the economic impact of tourism activities in Tebet Eco Park on the surrounding community, (3) To analyze the environmental impact of tourism activities in Tebet Eco Park based on community perceptions. The methods used are multiple linear regression models, income analysis, and descriptive statistics. The results of this study are: (1) Factors influencing the demand function for tourism in Tebet Eco Park include travel costs, education, income, and length of visit. The economic value of tourism in Tebet Eco Park is Rp. 153,004,832,753. (2) The economic impact generated is still relatively low because some tourist expenditures are made outside the Tebet Eco Park area. (3) The environmental impact based on the perceptions of the surrounding community falls into the very good category.
Keyword: analisis pendapatan, Individual Travel Cost Method, persepsi masyarakat, RTH

Judul: The Value of Green Open Space in the Forest Park of Penjaringan, North Jakarta
Abstrak: Kepadatan penduduk dan aktivitas ekonomi yang terus meningkat dapat menyebabkan perubahan penggunaan lahan yang dapat menurunkan kualitas lingkungan terutama di wilayah perkotaan. DKI Jakarta termasuk kota yang merasakan dampak dari penurunan kualitas lingkungan. Keberadaan Ruang Terbuka Hijau merupakan salah satu upaya untuk menyeimbangkan dan memperbaiki kualitas lingkungan. Pada saat ini RTH di DKI Jakarta baru berjumlah 9,8% dari 30% target minimal yang ditetapkan berdasarkan Undang-undang Nomor 26 Tahun 2007. Taman Hutan Kota Penjaringan (THKP) merupakan bentuk dari RTH yang berada di DKI Jakarta. Keberadaan THKP mempunyai fungsi ekologis seperti daerah resapan air, penyerap karbon,dan kesejukan. Penelitian ini bertujuan untuk (1) Menganalisis persepsi pengunjung terhadap keberadaan Taman Hutan Kota Penjaringan, (2) Mengestimasi nilai WTP pengunjung terhadap keberadaaan Taman Hutan Kota Penjaringan, (3) Mengestimasi nilai ekonomi guna tidak langsung Taman Hutan Kota Penjaringan.Metode yang digunakan dalam penelitian ini adalah skala likert, Contingent Valuation Method (CVM), Pendekatan harga pasar, benefit transfer dan replacement cost. Hasil pada penelitian ini menunjukkan bahwa persepsi pengunjung terhadap keberadaan Taman Hutan Kota Penjaringan adalah sangat baik. Estimasi nilai total WTP pengunjung sebesar Rp 28, Population density and economic activity that continues to increase can lead to changes in land use that can reduce environmental quality, especially in urban areas. DKI Jakarta is one of the cities that feel the impact of the decline in environmental quality. The existence of Green Open Space is one of the efforts to balance and improve the quality of the environment.. Currently, green open space in DKI Jakarta is only 9.8% of the 30% minimum target set based on Law No. 26 of 2007. Penjaringan City Forest Park (THKP) is a form of green open space located in DKI Jakarta. The existence of THKP has ecological functions such as water catchment areas, carbon sinks, and coolness. This study aims to (1) analyze visitors' perceptions of the existence of the Penjaringan City Forest Park, (2) estimate the WTP value of visitors to the existence of the Penjaringan City Forest Park, (3) estimate the economic value for the indirect use of the Penjaringan City Forest Park. The method used in this study These are Likert scale, Contingent Valuation Method (CVM), market price approach, benefit transfer and replacement cost. The results of this study indicate that the visitor's perception of the existence of the Penjaringan City Forest Park is very good. The estimated total WTP value for visitors is IDR 8,615,503,707 / year. The total economic value for indirect use is IDR 224.563.442,30/year.
Keyword: Contingent Valuation Method, Hutan Kota, Nilai guna tidak langsung, Valuasi ekonomi, Willingness to pay, Economic Value, Indirect use value

Judul: Sintesis Flavonol melalui 2’-Hidroksikalkon
Abstrak: Flavonol is a class of flavonoids commonly found in fruits and vegetables. Flavonol is very useful, especially in food sector and health. In this study, flavonol unsubstituted was successfully synthesized from an intermediate material 2’-hydroxychalcone. The 2’-hydroxychalcone was synthesized by Claisen-Schmidt condensation method between o-hydroxyacetophenone and benzaldehyde using 4 different catalysts, namely KOH 60%, solid pellet of KOH-grinding technique, BF3-Et2O, and NaH in DMF. The KOH 60% was the best catalyst, giving the highest yield (57%). Afterward, the flavonol was synthesized in 1-stage oxidation cyclization of o-hydroxyacetophenone using Algar-Flynn-Oyamada (AFO) reaction, giving 76%. The flavonol total yield from 2’-hydroxychalcone was 43%. All synthesized products were characterized by their melting points and their spectra. The success of the synthesis flavonol opens the way to synthesis of useful flavonol derivatives such as quercetin and kaempferol.
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