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Preliminary Stand Table for Average Dominant Trees of Jati Plus Perhutani in Saradan, Madiun, and Ngawi Forest Districs Rissa Rahmadwiati; Ronggo Sadono; Nunuk Supriyatno
Jurnal Manajemen Hutan Tropika Vol. 22 No. 1 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.973 KB) | DOI: 10.7226/jtfm.22.1.57

Abstract

In order to realize sustainable teak forest management, the strategic plan of forest management is highly needed to establish the growth characteristics model of Jati Plus Perhutani (JPP). The most thing which cannot be ignored to estimate the growth and yield of teak is quantification of site quality differentiation. The objective of this study is to arrange and predict the properly yielded table of the average dominant trees of JPP in the forest management unit of Saradan, Madiun, and Ngawi. The trees sampling had been selected for the age of 6 to 12 years from the best compartment areas in JPP. Growth model and JPP's yield stands were predicted using growth parameters such as diameter (dbh), total height, clear bole height, volume, and growing space. Each parameter was analyzed using SPSS 20 statistical software to determine the best growth model that will then be used to predict the stand table parameters values. The equation was selected from the highest R2 value or the value which is approaching to 1, with low standard error estimation (SEE).  The result shows that best equation model to estimate the growth from tree parameters on medium site of JPP are dominated by S model and the best model for bole height is growth model. The data were taken from an initial observation as a preliminary study, further research is expected to enhance the results of current research to obtain the stand table which can be applied in the future.  
INTERAKSI DAN KETERGANTUNGAN MASYARAKAT SEKITAR TERHADAP KAWASAN HUTAN DENGAN TUJUAN KHUSUS (KHDTK) GUNUNG BROMO Rezky Lasekti Wicaksono; Rissa Rahmadwiati; Dwi Apriyanto
Jurnal Belantara Vol 3 No 1 (2020)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.52 KB) | DOI: 10.29303/jbl.v3i1.421

Abstract

Mount Bromo Special Purpose Forest Areas (KHDTK) is expected to be able to fully manage Sebelas Maret University by involving stakeholders, including those related to the communities around the forest. This research is intended to understand the form of interaction and the level of comparison of people to forests. Mixed methods, namely qualitative and quantitative descriptive analysis used in this study to answer more complete research objectives. Mount Bromo KHdTK is by utilizing forests directly in the form of arable land (agroforestry patterns), energy (firewood), animal feed, air, and pine resin. Furthermore, the level of community participation in the forest is divided into three groups, namely low, medium, and high, with 49%, 38%, and 13%, respectively. Mount Bromo KHdTK continues to approve the community around the forest because they are the main party and first receive negative impacts from unsupported forest area management.
STUDI KEANEKARAGAMAN, BIOMASSA DAN CARBON STOCK BAMBU DI TAMAN HUTAN RAYA K.G.P.A.A. MANGKUNAGORO I Yus Andhini Bhekti Pertiwi; Malihatun Nufus; Ana Agustina; Rissa Rahmadwiati; Rezky Lasekti Wicaksono; Ike Nurjuita Nayasilana
Jurnal Belantara Vol 4 No 2 (2021)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (768.232 KB) | DOI: 10.29303/jbl.v4i2.816

Abstract

K.G.P.A.A. Mangkunagoro I Forest Park is the one and only forest park in Central Java. As area of protection, life support system, and biodiversity preservation, K.G.P.A.A. Mangkunagoro I Forest Park plays an important role for life, especially for people around the forest area. To ensure this function, the sustainability of forest functions is determined by the presence of vegetation in the forest area. The purpose of this study was to determine the diversity of species, biomass and carbon stock of bamboo in K.G.P.A.A. Mangkunagoro I Forest Park. The diversity of bamboo species was observed by exploration method with an inventory. Then, based on the inventory data obtained, one species of bamboo was selected based on its number of clumps to determine the biomass and carbon storage. In the present study, there were 20 species bamboo at K.G.P.A.A. Mangkunagoro I Forest Park namely Bambusa balcoa, B. balcoa var. Capensis, B. bambos, B. blumeana, B. multiplex-green hedge, B. multiplex-alphanse karr, B. oldhami, B. tuldoides, B. vulgaris vulgaris, B. vulgaris vitata, B. vulgaris wamin budha, Dendrocalmus asper, D. asper thai, D. asper black, D. hamiltoni, Guadua amplexifolia, G. agustifolia, Oxytenanthera abysinica, Phyllostacys aurea, dan P. nigra. Furthermore, D. asper (petung bamboo) was the most dominated bamboo species. The number of D. asper were 758 clumps/ha and 3,213 reeds/ha. The average D. asper biomass was 6.02 kg/reed. Thus, the estimated biomass per ha was 19.5 tonnes/ha. In addition, D. asper has the ability to store carbon of 9.1 tonnes/ha. 
Upaya Optimalisasi Lahan Bawah Tegakan pada Zona Tradisional melalui Sosialisasi Budidaya Nilam kepada Pengaram di Taman Hutan Raya K.G.P.A.A. Mangkunagoro I Yus Andhini Bhekti Pertiwi; Malihatun Nufus; Rezky Lasekti Wicaksono; Rissa Rahmadwiati; Ana Agustina; Ike Nurjuita Nayasilana
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 7 No Special-1 (2022): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v7iSpecial-1.2548

Abstract

The socialization of patchouli cultivation was conducted at Forest Park (Tahura) K.G.P.A.A. Mangkunagoro I, located at Mount Lawu, in Berjo Village, Ngargoyoso District Karanganyar Regency. Tahura K.G.P.A.A. Mangkunagoro I was divided into several zones. The most critical zone for the local community is the traditional zone. So far, the traditional zone was used by the community/forest farmers (pengaram) to plant grass (Pennisetum purpureum) under the main stand. The grass was planted mainly for animal feed or sale. During the dry season, the main problem was that the grass did not grow well. Thus, forest farmers do not have additional income from the traditional zone. For this reason, it was necessary to enrich understorey species that mainly have high economic and ecological values. One of the potential plants to be developed understands at traditional zone was patchouli (Pogostemon cablin Benth.). Patchouli is an essential oil-producing plant. It is easy to cultivate and has high economic value. The purpose of this community service was to provide knowledge to forest farmers about patchouli plants. The activities carried out in this program were providing counseling to forest farmers about the theory related to patchouli cultivation and its benefits, business opportunities, oil processing, and mentioned costs and income from patchouli cultivation. The result shows that the knowledge about patchouli cultivation was new for the forest farmers. Forest farmers and Tahura K.G.P.A.A. Mangkunagoro I staff showed interest in cultivating patchouli under forest stands in traditional zones.
ANALISIS DEBIT BANJIR RANCANGAN DENGAN METODE HIDROGRAF SATUAN SINTETIS NAKAYASU DI SUB DAS KEDUANG (Analysis of planned flood discharge using the Nakayasu synthetic unit hydrograph in Keduang Sub Watershed) Esa Bagus Nugrahanto; Slamet Suprayogi; Mohammad Pramono Hadi; Rissa Rahmadwiati
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 6, No 2 (2022): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2022.6.2.111-124

Abstract

ABSTRAKSub DAS Keduang merupakan daerah yang rawan terjadi bencana banjir. Hal ini terjadi karena tutupan lahan yang variatif diikuti dengan tutupan hutan yang rendah. Keadaan ini menyebabkan peningkatan air limpasan yang berpotensi menjadi banjir. Penelitian ini bertujuan untuk menganalisis debit banjir rancangan di Sub DAS Keduang dengan beberapa periode ulang. Penelitian dilakukan dengan analisis data sekunder tahun 2007-2018. Analisis curah hujan dilakukan dengan beberapa metode, yaitu metode normal, log normal, log pearson III, dan gumbel serta diuji dengan uji chi square dan kolmogorov smirnov. Analisis debit banjir rancangan menggunakan metode HSS Nakayasu. Hasil penelitian diperoleh bahwa analisis curah hujan yang dipilih adalah metode normal. Debit banjir rancangan diperoleh bahwa debit maksimum periode ulang 2 tahunan adalah 1.375,20 m3/detik, periode ulang 5 tahunan sebesar 1.724,92 m3/detik, periode ulang 10 tahunan 1.908,10 m3/detik, periode ulang 20 tahunan 2.057,97 m3/detik, periode ulang 25 tahunan 2.087,12 m3/detik, periode ulang 50 tahunan 2.228,67 m3/detik, periode ulang 100 tahunan 2.345,24 m3/detik, dan periode ulang 1000 tahunan sebesar 2.661,64 m3/detik. Hasil penelitian ini diharapkan dapat digunakan dalam perencanaan dan pengelolaan DAS untuk mitigasi bencana banjir di Sub DAS Keduang.Kata kunci: debit banjir rancangan, hidrograf satuan sintetis, nakayasu, analisis frekuensi, Sub DAS KeduangABSTRACTKeduang Sub Watershed was an area prone to flooding. This happens because of the varied land cover followed by low forest cover. This circumstance leads to an increase in runoff which has the potential to become flooded. This study aims to analyze the planned flood discharge in the Keduang Sub Watershed with several return periods. The study was conducted using secondary data analysis in 2007-2018. Rainfall analysis was performed by several methods, namely normal method, normal log, pearson III log, and gumbel and tested with chi square and kolmogorov smirnov tests. Planned flood discharge analysis was using the Nakayasu synthetic unit hydrograph method. Results showed that the rainfall analysis chosen is normal method. The planned flood discharge obtained that the maximum discharge of the 2-yearly return period was 1,375.20 m3/s, the 5-yearly return period was 1,724.92 m3/s, the 10-yearly return period was 1,908.10 m3/s, the 20-yearly return period was 2,057.97 m3/s, the 25-yearly return period was 2,087 m3/s, the 50-yearly return period of 2,228.67 m3/s, the 100-yearly return period of 2,345.24 m3/s, and the 1000-yearly return period of 2,661.64 m3/s. Flood discharges are increasing in the larger return period, and the largest flood discharge occurred in the 1000-yearly return period. The results of this study are expected to be used in watershed planning and management for flood disaster mitigation in Keduang Sub Watershed.Keywords: planned flood discharge, synthetic unit hydrograph, nakayasu, frequency analysis, Keduang Sub Watershed 
Estimation and Economic Valuation of Above-Ground Carbon in Forest Area with the Special Purpose of Gunung Bromo, Karanganyar, Central Java, Indonesia Rissa Rahmadwiati; Rezky Lasekti Wicaksono; Dwi Apriyanto
Jurnal Sylva Lestari Vol. 10 No. 1 (2022): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v10i1.548

Abstract

Climate change and the increasing greenhouse effect are serious problems of global concern today. The existence of forests plays an essential role in carbon sequestration and storage to reduce greenhouse gas (GHG) concentration in the atmosphere. Forest Area with the Special Purpose (KHDTK) of Gunung Bromo has an area of 126,291 ha that is designated as an educational forest. The area has been managed by Universitas Sebelas Maret since 2019 and consists of three main tree species, namely Pinus merkusii, Swietenia mahagoni, and Dalbergia latifolia. This study aims to estimate the potential uptake and economic valuation of carbon stocks in the KHDTK of Gunung Bromo. Stratified Systematic Sampling with Random Start was used as an inventory method in this study. The estimation of above-ground carbon uptake used general allometric equations (non-destructive method). Furthermore, the carbon economy valuation referred to the range of calculating the average carbon price for each program specification. The results showed that the estimated carbon of tree stands in KHDTK of Gunung Bromo reached 75.81 tonnes C/ha with a carbon economic valuation of USD 758.1/ha or equivalent to IDR 10,856,863.80/ha. Exploring the potential for biodiversity (flora and fauna) and environmental services such as carbon sink will support the ecotourism program in KHDTK of Gunung Bromo. Keywords: biomass, carbon estimation, economic valuation, KHDTK of Gunung Bromo
ECOPRINT UNTUK MENINGKATKAN KREATIVITAS DAN PENDAPATAN KWT PAGUYUBAN PETANI AL-BAROKAH DI KABUPATEN SEMARANG Yus Andhini Bhekti Pertiwi; Ana Agustina; Rissa Rahmadwiati; Supriyadi Supriyadi; Malihatun Nufus; Rezky Lasekti Wicaksono
JMM (Jurnal Masyarakat Mandiri) Vol 7, No 3 (2023): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v7i3.14757

Abstract

Abstrak: Saat ini sandang bukan hanya sebagai kebutuhan primer, tetapi juga sudah menjadi bagian dari gaya hidup. Ecoprint merupakan salah satu metode untuk mewarnai atau membuat motif pada kain yang saat ini digemari masyarakat. Produk ecoprint dapat menjadi salah satu sumber pendapatan yang ramah lingkungan dan bernilai ekonomi serta layak dikembangkan. Mitra kegiatan ini yaitu KWT Paguyuban Petani Al-Barokah, dengan jumlah peserta pelatihan 28 orang. Tujuan dari pelatihan ecoprint adalah para anggota akan berperan aktif dalam menjaga lingkungan dan bermuara pada peningkatan kreativitas dan pendapatan. Pelatihan dilakukan di Sekretariat Paguyuban Petani Al-Barokah Desa Ketapang, Kecamatan Susukan, Kabupaten Semarang. Metode pelatihan yang digunakan adalah ceramah dan praktik. Sumber bahan baku ecoprint diperoleh dari lingkungan sekitar berupa daun dan bunga dari beragam tumbuhan yang dapat mengeluarkan pigmen warna/mengandung pewarna alam seperti jati, jarak, dll. Peserta tampak antusias dengan kegiatan ini dan merasa senang dan tertarik untuk memperdalam keterampilan ecoprint di masa mendatang. Peserta memperoleh pengetahuan dasar tentang ecoprint dan dapat menghasilkan produk kain dengan motif khas ecoprint.Abstract: Nowadays, clothing is not only a primary need, but has also become part of the lifestyle. Ecoprint is a method for coloring or making motifs on fabrics that are currently popular in public. Ecoprint process was environmentally friendly and the product has a high value, thus it has potency to be income source. Farmer’s women’s group Al-Barokah Farmers Association was the partner in this community services, in total there were 28 women who involve in this activity. The goal of the ecoprint training was that the members shows an active role in protecting the environment and lead to increased their creativity and income. The training was conducted at Secretariat of the Al-Barokah Farmers Association in Ketapang Village, Susukan District, Semarang Regency. The training method that used was lecture and practice. The source of ecoprint raw materials was obtained from the surrounding environment in the form of leaves and flowers of perennial plants which can secrete color pigments/contain natural dyes such as teak, jatropha, etc. Participants seemed enthusiastic about this activity and interested in deepening their ecoprint skills near future. Participants acquired ecoprint basic knowledge and able to produce ecoprint fabric.
PENDAMPINGAN KEWIRAUSAHAAN MELALUI PENYADARTAHUAN STANDARD OPERATIONAL PROCEDURE (SOP) PRODUKSI DAN PENYEMPURNAAN KEMASAN PADA PRODUK OLAHAN MINUMAN JAHE INSTAN PADA KELOMPOK WANITA TANI D’SEKAR Yus Andhini Bhekti Pertiwi; Ana Agustina; Rissa Rahmadwiati; Rezky Lasekti Wicaksono; Dwi Apriyanto; Suroto Suroto
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 7 No 1 (2023)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/logista.7.1.128-136.2023

Abstract

Jahe merupakan jenis rimpang paling banyak dibudidayakan oleh petani hutan rakyat Desa Gempolan, Kecamatan Kerjo, Kabupaten Karanganyar. Pada umumnya, jahe di tanam di bawah tegakan tanaman keras melalui sistem agroforestri. Selama ini hasil panen berupa jahe segar dijual langsung ke pasar. Namun, seringkali harga jual di pasar fluktuatif sehingga petani enggan menjual pada saat tersebut. Apabila kondisi tersebut berkepanjangan, maka jahe yang disimpan akan busuk. Oleh karena itu, Kelompok Wanita Tani (KWT) D’Sekar mengolah jahe menjadi produk minuman jahe instan agar dapat meningkatkan harga jual sekaligus memberikan pemasukan tambahan bagi keluarga. Akan tetapi, hingga saat ini produk minuman jahe instan yang dibuat oleh KWT D’Sekar masih sangat sederhana dan belum menggunakan Standard Operasional Procedure (SOP) produksi, sehingga dalam mengontrol kualitas produksi tiap batch sulit dilakukan. Selain itu, kemasan yang digunakan masih sangat sederhana dan belum memiliki izin edar Produksi Pangan Industri Rumah Tangga (PIRT). Pengabdian kepada masyarakat yang dilaksanakan meliputi penyuluhan, penawaran perbaikan kemasan produk minuman jahe instan, dan pendampingan dalam pengurusan PIRT. Melalui pengabdian kepada masyarakat, diharapkan akan meningkatkan produksi, daya jual dan pada akhirnya bermuara pada peningkatan kesejahteraan anggota KWT D’Sekar. Kata kunci: kewirausahaaan, SOP produksi, jahe instan, kemasan, kelompok wanita tani ABSTRACT Ginger was the most widely cultivated rhizome by private forest farmers in Gempolan Village. Kerjo District, Karanganyar Regency. Ginger was planted under forest stands though agroforesty. The harvested ginger was sold directly to the market. However, the ginger selling price was fluctuates, thus the farmers were reluctant to sell at that time. If this condition was prolonged, the stored ginger will rot. Therefore, the Woman Farmers Group (WFG) D’Sekar processes ginger into instant gingger drink product in order to increase the selling price while providing additional income for their family. However, instant gingger drink product that made by WFG D’Sekar was simple and not use production Standard Operating Procedure (SOP) yet. Therefore, controling the production quality of each batch was difficult. In addition, the packaging used was very simple and not yet have food distribution permit, Home Industry Food Production (HIFP). Though community service, it was expected to be able increase on instant gingger drink production, marketability, and lead into increasing family walfare of WFG D’Sekar members. Keywords: entrepreneurship, SOP of production, instant ginger, packaging, women farmers group
IDENTIFIKASI KERUSAKAN POHON DI KAMPUS KENTINGAN UNIVERSITAS SEBELAS MARET Masyithoh, Galuh; Pertiwi, Yus Andhini Bhekti; Rahmadwiati, Rissa; Apriyanto, Dwi; Nayasilana, Ike Nurjuita; Wicaksono, Rezky Lasekti
BIOTIKA Jurnal Ilmiah Biologi Vol 21, No 1 (2023): BIOTIKA JUNI 2023
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/biotika.v21i1.42797

Abstract

Universitas Sebelas Maret (UNS) sebagai kampus yang dijuluki sebagai kampus hijau (Green Campus) dengan berbagai jenis pohon di dalamnya tentunya memiliki fungsi ekologis yang tinggi. Keberadaan tegakan perlu dievaluasi untuk mengetahui kondisi kesehatan tegakan yang berada di kawasan Green Campus UNS. Evaluasi tersebut dilakukan sebagai upaya mitigasi untuk meminimalisasi terjadinya pohon tumbang. Pemantauan kesehatan hutan atau Forest Health Monitoring (FHM) adalah metode untuk menentukan status, perubahan dan kecenderungan yang terjadi mengenai kondisi suatu ekosistem hutan pada suatu waktu dan dinilai berdasarkan tujuan dan fungsi suatu hutan dan kawasan hutan. Pada metode FHM, identifikasi kerusakan pohon dilakukan dengan memberikan kode yang menggambarkan lokasi kerusakan pohon (bagian pohon yang mengalami kerusakan), tipe kerusakan pohon, dan tingkat keparahan/kerusakan pada pohon. Berdasarkan hasil penelitian ditemukan 3978 individu dari 116 jenis tumbuhan di Kampus Kentingan UNS. Terdapat 10 jenis yang dapat ditemukan pada seluruh area kampus, yaitu Pterocarpus indicus, Ficus sp., Delonix regia, Polyathia longifolia, Tectona grandis, Filicium decipiens, Terminaila catappa, Swietenia macrophylla, Mangifera indica, dan Mimusops elengi. Berdasarkan klasifikasi kesehatan pohon, sebanyak 90,98% (n = 33619) tegakan termasuk kelas sehat, 8,27% (n = 329) tegakan termasuk kelas kerusakan ringan, dan 0,75% (n = 30) tegakan termasuk kelas kerusakan sedang. Bagian tumbuhan yang banyak mengalami kerusakan adalah cabang, batang bagian bawah, dan daun. Tipe kerusakan yang banyak ditemukan adalah cabang patah dan mati, luka terbuka, kanker, mati pucuk, dan klorosis.
Exploring the Vegetation Characteristics of Karst Landscapes: A Study of Community Forest in Tubokarto Village, Wonogiri, Indonesia Prabowo, Sukma Hari; Rahmadwiati, Rissa; Nufus, Malihatun
Media Konservasi Vol. 29 No. 4 (2024): Media Konservasi Vol 29 No 4 September 2024
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.29.4.593

Abstract

Karst landscapes are characterized by unique relief and drainage patterns, which influence the types of vegetation that can inhabit these environments. Vegetation in karst ecosystems plays a crucial role in groundwater filtration. Plant species diversity within these communities contributes to structural variations across different habitats. This study evaluates the potential of vegetation in community forests in Tubokarto Village, Wonogiri Regency, by analyzing species composition and vegetation. Using a purposive sampling method, we selected areas with polyculture planting patterns and agroforestry, applying a sampling intensity of 2.2% with 20 × 100 m strip plots. The results showed that the species composition at the location consisted of 18 species in 7 families. The stand density for trees is 221 ind ha–1, poles 436 ind ha–1, saplings 1,144 ind ha–1, and seedlings 2,650 ind ha–1. Tectona grandis emerged as the dominant species, with the highest Importance Value Index (IVI) values: 142.79 at the tree level, 212.48 for poles, 197.84 for saplings, and 122.29 for seedlings. Species diversity indices were 1.53 for trees, 0.97 for poles, 1.36 for saplings, and 1.21 for seedlings. The species richness index showed values of 2.79 for trees, 1.49 for poles, 1.21 for saplings, and 1.80 for seedlings, while the species evenness index ranged from 0.43 to 0.76. The vegetation structure of Tubokarto Village spans strata B and C, with tree diameter class distribution resembling that of natural forests. Environmental factors, including climate and soil composition, are likely influencing species growth patterns.