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All Journal Indonesian Journal of Applied Sciences Panrita Abdi - Jurnal Pengabdian pada Masyarakat 3BIO: Journal of Biological Science, Technology and Management Journal of People, Forest And Environment (Journal of Environmental Sustainability Management)
Yayat Hidayat
Sekolah Ilmu Dan Teknologi Hayati, Institut Teknologi Bandung, Bandung, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Environmental Science Immunology & microbiology Neuroscience Other

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Pendugaan Parameter Genetik, Korelasi Antar Karakter Fenotipik serta Hubungan Kekerabatan Genetik Populasi Bibit Surian (Toona sinensis Roem) Yayat Hidayat; Murdaningsih Haeruman K.; Suseno Amien; Iskandar Zulkarnaen Siregar
Indonesian Journal of Applied Sciences Vol 1, No 1 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1161.454 KB) | DOI: 10.24198/ijas.v1i1.1851

Abstract

An  experiment to estimate genetic parameter, correlation among traits and genetic relationship of seedling population of Toona siensis Roem that progeny halfsib from 13 parent trees came from four sertified seed stands of surian in Java island was carried out in nursery et ex Faculty of Forestry Winayamukti University Jatinangor, from January until February 2010.  The experment  was arrenge in a randomized block design with four seed stand as treatments and five replications.  The observation was performed on 17 phenotipic  traits of surian seedling six month old after spin out.   The data were analyzed using anova, correlation, pricipal component analysis, and cluster analysis. The results showed that the characters have a large genetic variance, high heritability and high genetic advance were character of the total height, clear leave hight, the robustness of the stem, leaf length and leaf lamina shape. Characters that have a positive phenotypic and genotypic correlation and significant to the total height were clear leave height, colar diameter, leaf length, shoot length, number of leaves, length of leaflets, width of leaflets, distance first leaflet to petiol, and distance widest point of laminae to petiol. Characters that have a positive phenotypic and genotypic correlation and significant to the colar diameter were total height, shoot length, number of levaes, shoot length, number of leaves, length of leaflets, width of leaflets, distance first leaflet to petiol, and distance widest point of laminae to petiol. Group of seedlings from TBI Kendal has a closer genetic relationship to the group of seedlings from TBS Jatinangor, whereas the group of seedlings from TBI Sumedang have a closer genetic relationship with TBI Tasikmalaya.*****Penelitian yang bertujuan untuk menduga parameter genetik, korelasi antar karakter dan hubungan kekerabatan genetik populasi bibit dari keturunan halfsib 13 genotip pohon induk surian yang berasal dari empat populasi tegakan benih surian bersertifikat di Pulau Jawa telah dilakukan di persemaian eks Fakultas Kehutanan Unwim Jatinangor pada Januari hingga Juni 2010. Penelitian menggunakan rancangan acak kelompok dengan empat populasi tegakan benih sebagai perlakuan yang diulang lima kali. Pengamatan dilakukan terhadap 17 karakter fenotipik pertumbuhan bibit surian umur enam bulan setelah sapih. Analisis data dilakukan melalui analisis ragam, analisis korelasi, analisis komponen utama dan analisis klaster. Hasil penelitian menunjukan bahwa  karakter yang memiliki varians genetik luas, heritabilitas tinggi dan kemajuan genetik tinggi  adalah karakter tinggi total, tinggi bebas daun, kekokohan batang, panjang daun dan bentuk lamina daun. Karakter yang memliki korelasi fenotipik dan genotipik searah dan nyata dengan karakter tinggi total adalah karakter tinggi bebas daun, diameter batang, panjang daun, panjang pucuk, jumlah daun, panjang anak daun, lebar anak daun, jarak anak daun pertama terhdap petiol, panjang petiol dan jarak titik lamina terlebar terhadap petiol. Karakter yang memiliki korelasi fenotipik dan genotipik searah dan nyata dengan karakter diameter batang bibit adalah karakter tinggi total, panjang pucuk, jumlah daun, panjang anak daun, lebar anak daun, jarak anak daun pertama terhadap petiol, dan jarak titik lamina terlebar terhadap petiol. Kelompok bibit asal TBI Kendal memiliki hubungan kekerabatan genetik yang lebh dekat dengan kelompok bibit asal TBS Jatinangor, sedangkan kelompok bibit asal TBI Sumedang memiliki hubungan kekerabatn genetik lebih dekat dengan TBI Tasikmalaya.
APLIKASI TEKNOLOGI BIOPELET LIMBAH KOPI SEBAGAI BAHAN BAKAR ALTERNATIF DALAM RANGKA PENGEMBANGAN DESA MANDIRI ENERGI DI DESA JATIROKE KAWASAN SEKITAR HUTAN PENDIDIKAN GUNUNG GEULIS ITB Anne Hadiyane; Alfi Rumidatul; Yayat Hidayat
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 5 No. 3 (2021): Jurnal Panrita Abdi - Juli 2021
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v5i3.9536

Abstract

Abstract. The utilization of coffee skin waste is still a problem faced by members of farmer groups in Jatiroke Village, Jatinangor District, Sumedang Regency, West Java Province. The solution provided to address the problems of partners in the form of the application of biopelet making technology in the processing of coffee waste in the context of developing energy independent villages. The service activity program is carried out in four stages, namely a) Identification of problems; b) Program socialization; c) Education and training programs; and d) Monitoring and evaluation. The activities carried out with the Gunung Geulis coffee farmers group are a) Information program socialization; b) Training and mentoring the process of processing and making biopelet from coffee waste and c) monitoring and evaluating each phase of the activity. The results obtained after this activity is the achievement of increased knowledge and skills of Gunung Geulis coffee farmers in processing coffee waste into biopelet as an environmentally friendly alternative energy source.             Abstrak. Pemanfaatan limbah kulit kopi masih menjadi permasalahan yang dihadapi anggota kelompok tani di Desa Jatiroke Kecamatan Jatinangor Kabupaten Sumedang Provinsi Jawa Barat. Solusi yang diberikan untuk menjawab permasalahan mitra berupa penerapan teknologi pembuatan biopelet pada proses pengolahan limbah kopi dalam rangka pengembangan desa mandiri energi. Program kegiatan pengabdian dilaksanakan dalam empat tahapan, yakni a) Indentifikasi masalah; b) Sosialisasi program; c) Program penyuluhan dan pelatihan; dan d) Monitoring dan evaluasi. Kegiatan yang dilaksanakan dengan kelompok petani kopi Gunung Geulis yakni: a) Sosialisasi program kegiatan; b) Pelatihan dan pendampingan proses pengolahan dan pembuatan biopelet dari limbah kopi dan c) monitoring dan evaluasi setiap tahapan kegiatan. Hasil yang diperoleh setelah kegiatan ini adalah tercapainya peningkatan pengetahuan dan keterampilan petani kopi Gunung Geulis dalam mengolah limbah kopi menjadi biopelet sebagai sumber energi alternatif yang ramah lingkungan.
CO2 Emission and Absorption Estimation in Bandung City by Implementing CO2 Emission Rate Reduction Simulation Using the Stella Program Natalia Christiani; Yayat Hidayat; Sutrisno Trisno
3BIO: Journal of Biological Science, Technology and Management Vol. 3 No. 1 (2021)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2021.3.1.4

Abstract

Bandung CO2 emissions continue to increase in line with its population. The emissions source comes from the industrial, transportation, Liquefied Petroleum Gas (LPG), household, and livestock sectors, whereas CO2 absorption only comes from vegetation through photosynthesis. High CO2 emissions could decrease air quality and reduce environmental health. This study aims to estimate the amount of CO2 emissions and their absorption in Bandung by implementing CO2 Emission Rate Reduction Simulation (CERRS). The simulation comprises four scenarios, namely substitution of vehicle fuel and the application of smart driving techniques, optimization of waste processing in IWPS, processing 90% of livestock waste into biogas, and green space development of 30% of Bandung City area. Estimated CO2 emission and absorption rates were calculated for the next 10 years (2021-2030) using the Stella program version 9.0.2. The results showed that without implementing the CERRS, the amount of CO2 emissions in Bandung in 2030 was estimated to reach 10,983,666.82 tons while implementing the CERRS was 2,361,721.30 tons. Without implementing the CERRS, the estimated amount of CO2 absorptions in 2030 was 214,235.11 tons, while implementing the CERRS was 2,785,703.11 tons. It is expected that the application of the CERRS could reduce the level of CO2 emissions in Bandung by 78.5% and increase CO2 absorptions by 1,200.3%.
Analysis and Prediction of Water Balance Using Dynamic Modelling to Solve Water Scarcity in Cimahi Muhamad Fikri Fadhilah; Yayat Hidayat; Anne Hadiyane
3BIO: Journal of Biological Science, Technology and Management Vol. 4 No. 2 (2022)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2022.4.2.3

Abstract

Cimahi is one of the most populated, fast-growing cities in Indonesia. Consequently, various environmental problems appear, primarily related to the sustainability of water resources. Exploitation and pollution of water, especially groundwater, are not accompanied by a good water conservation system that ensures proper water infiltration into the soil, causing several locations in the city to experience water deficits. The city may suffer a severe water shortage if this problem is unsolved. This study aims to predict and analyze the need and availability of water in Cimahi in the next few years to determine the right solution to deal with this problem. Analysis and prediction of water availability/needs were carried out by building a dynamic model using STELLA software for simulating the conditions in the next ten years. The results of the model were combined with the applicable spatial policies to formulate possible solutions. Results showed that Cimahi will experience a water crisis starting from 2029 with a total water deficit of 8.22 million M³. The model also predicted South Cimahi District is the area with the worst conditions where the water crisis has occurred since 2022 and peaked in 2029 with water sufficiency of only 59.83%. Based on local spatial planning laws and policies, the city's government is advised to improve its catchment area to protect its water resources. The vegetation cover area surrounding the catchment area can be improved, and water absorption capacity can be increased through civil technical actions such as building absorption wells. The model results showed that a proper solution could be done by expanding 142.8 Ha of green/vegetation cover, building 1576 units of absorption wells, and increasing the PDAM supply by 100 l/second.
Status keberlanjutan penyediaan air di Sub DAS Cikeruh, bagian hulu DAS Citarum, Jawa Barat Riezcy Cecilia Dewi; Yayat Hidayat; Asep Suheri
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 7, No 3 (2023)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.7.3.268-284

Abstract

Water balance or water avalibility that is not equal with the increasing water demand is a problem often encountered in water resources. The Cikeruh sub-watershed is one of the upstream parts of the Citarum watershed which has a water deficit. These problems require policy options in realizing sustainable use of water resources. The research aims to analyze the index and sustainability status of water supply in the Cikeruh sub-watershed and determining sensitive attributes of each sustainability dimension, namely the ecological, economic, social and institutional dimensions. The data analysis method uses the MDS (Multi-Dimensional Scaling) with the Rapfish software. The data used includes primary and secondary data.. The instruments for collecting primary data were questionnaires and structured questions to stakeholders. The result show that the level of sustainability of water supply in the Cikeruh Sub-watershed is generally categorized as quite sustainable (57,68%). The results of leverage analysis describes ten attributes that affect the levels of sustainability, namely the maintenance of the catchment area, water availability, availability of funds, other economic resources, farmers' income, transfer of land ownership, community understanding, community participation, coordination between institutions, and cooperation. By optimizing the most sensitive attributes, the sustainability of water supply could be improved.
ANALISIS PENGARUH PERUBAHAN PENGGUNAAN LAHAN TERHADAP DAYA DUKUNG SUB-DAS CIKERUH MENGGUNAKAN MODEL HIDROLOGI SWAT Riezcy Cecilia Dewi; Yayat Hidayat; Asep Suheri
Journal of People, Forest and Environment Vol. 2 No. 1 (2022): Mei
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jopfe.v2i2.5513

Abstract

Sub-DAS Cikeruh merupakan wilayah yang banyak mengalami konversi penggunaan lahan untuk pemukiman dan industri, khususnya di kecamatan Jatinangor dan Rancaekek. Laju sedimentasi tahunan yang terjadi pada tahun 1994-2001 mencapai 100 ton/km2. Karakterisik daya dukung biofisik Sub-DAS Cikeruh perlu dikaji untuk mengetahui gambaran mengenai kondisi Sub-DAS. Penggunaan model SWAT dalam penelitian ini sangat efektif dan efisien dalam memprediksi dampak praktek pengelolaan lahan terhadap kondisi daya dukung Sub-DAS Cikeruh. Tujuan penelitian ini adalah: (1) untuk mengidentifikasi karakteristik biofisik, (2) menentukan daya dukung, dan (3) memberikan rekomendasi skenario penggunaan lahan terbaik di Sub-DAS Cikeruh. Parameter yang dianalisis adalah karakteristik lahan dan hidrologi berdasarkan Permenhut Nomor P.61/Menhut-II/2014 tentang Monitoring dan Evaluasi Pengelolaan DAS. Hasil penelitian menunjukkan tingkat performa model adalah memuaskan dengan nilai NSE (0,57) dan R2 (0,62) pada proses kalibrasi serta NSE (0,46) dan R2 (0,51) pada proses validasi. Karakteristik biofisik Sub-DAS Cikeruh menunjukkan kriteria baik pada KRA, KAT, dan IPA, sedangkan kriteria buruk pada PLK, PPV, indeks erosi, muatan sedimen, dan banjir. Daya dukung Sub-DAS Cikeruh termasuk kriteria sedang. Skenario terbaik untuk diimplementasikan adalah skenario 2 yaitu konversi kebun ke hutan sebesar 17%, sawah ke hutan sebesar 3%, dan sawah ke kebun sebesar 7%.
ANALYSIS OF THE EFFECT OF LAND-USE CHANGES ON THE CARRYING CAPACITY OF THE CIKERUH SUB-WATERSHED USING THE SWAT HYDROLOGICAL MODEL Riezcy Cecilia Dewi; Asep Suheri; Yayat Hidayat
Journal of People, Forest and Environment Vol. 2 No. 1 (2022): Mei
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jopfe.v2i1.6003

Abstract

Cikeruh Sub-Watershed is an area that has occurred a lot of land-use conversions, for residential and industrial, especially in the Jatinangor and Rancaekek districts. The annual sediment rate that occurred in 1994-2001 reached 100 tons/km2. Characteristics of the biophysical carrying capacity of Cikeruh Sub-Watershed need to be studied to provide an overview of the Sub-Watershed conditions. Using the SWAT model in this study is very effective and efficient in predicting the impact of land management practices on the carrying capacity of the Cikeruh Sub-Watershed. The purpose of this study is: (1) to identify biophysical characteristics, (2) determine the carrying capacity of Sub-Watershed, and (3) provide recommendations for the best land-use scenario in Cikeruh Sub-Watershed. The parameters analyzed are land and hydrological characteristics based on Permenhut Number P.61/Menhut-II/2014 about Monitoring and Evaluation of Watershed Management. The statistical analysis shows that the performance level of the model in the calibration and validation process is satisfactory with the values of NSE (0,57) and R2 (0,62) in the calibration process and NSE (0,46) and R2 (0,51) in the validation process. The biophysical characteristics of the Cikeruh Sub-Watershed have good criteria are KRA, KAT, and IPA, while poor criteria are PLK, PPV, erosion index, sediment loads, and flood. The carrying capacity of the Cikeruh Sub-Watershed is the moderate criteria. The best scenario to solve these problems is scenario 2 by converting agriculture to the forest by 17%, rice to the forest by 3%, and rice to agriculture by 7%.
Co-Authors Alfi Rumidatul Anne Hadiyane Anne Hadiyane Asep Suheri Asep Suheri Asep Suheri Christiani, Natalia ISKANDAR ZULKARNAEN SIREGAR Muhamad Fikri Fadhilah Murdaningsih Haeruman K. Riezcy Cecilia Dewi Riezcy Cecilia Dewi Riezcy Cecilia Dewi Suseno Amien Sutrisno Trisno