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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Gamma Bumi Lestari Jurnal Ilmu Lingkungan Jurnal Kawistara : Jurnal Ilmiah Sosial dan Humaniora Jurnal Penelitian Hutan Tanaman JURNAL ANALISIS KEBIJAKAN KEHUTANAN Biotropika Jurnal Ketahanan Nasional Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Ecogreen Jurnal Wilayah dan Lingkungan Agrin : Jurnal Penelitian Pertanian SASDAYA: Gadjah Mada Journal of Humanities Forest and Society Gorontalo Journal of Forestry Research BHUMI: Jurnal Agraria dan Pertanahan PERENNIAL Journal of Sylva Indonesiana Jurnal Hutan Pulau-Pulau Kecil : Jurnal Ilmu-Ilmu Kehutanan dan Pertanian Journal of Forest Science Avicennia Jurnal Galam MAKILA: Jurnal Penelitian Kehutanan JURNAL HUTAN TROPIS Jurnal Ilmu Kehutanan Jurnal Ilmu Kehutanan Jurnal Penelitian Kehutanan Wallacea MARSEGU : Jurnal Sains dan Teknologi Jurnal Kawistara

Ris Hadi Purwanto

Department Of Forest Management, Faculty Of Forestry, Gadjah Mada University, Jl. Agro No. 1. Bulaksumur, Sleman Yogyakarta, Indonesia 55281

Author-ID : 350031

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences

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Potensi Biomasa dan Simpanan Karbon Jenis-jenis Tanaman Berkayu di Hutan Rakyat Desa Nglanggeran, Gunungkidul, Daerah Istimewa Yogyakarta Ris Hadi Purwanto; Rohman Rohman; Ahmad Maryudi; Teguh Yuwono; Dwiko Budi Permadi; Makmun Sanjaya
Jurnal Ilmu Kehutanan Vol 6, No 2 (2012)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Selain menghasilkan kayu perkakas dan kayu bakar, hutan rakyat sebagaimana hutan pada umumnya juga berfungsi sebagai penyimpan karbon, sehingga memainkan peran yang sangat penting di dalam siklus karbon global (the global carbon cycle). Penelitian ini dilakukan untuk (a) mengetahui jenis-jenis tanaman berkayu mulai dari tingkat tiang (poles: D = 10 cm) di hutan rakyat Desa Nglanggeran, (b) mengetahui karakteristik pertumbuhan tanaman berkayu penyusun hutan rakyat meliputi pertumbuhan diameter batang setinggi dada, tinggi, kerapatan pohon dan luas bidang dasarnya, dan (c) mengetahui kandungan biomasa dan karbon. Hasil penelitian ini menunjukkan ada 25 jenis tanaman berkayu yang ditanam dan dikembangkan oleh masyarakat petani hutan rakyat di Desa Nglanggeran yang sebagian besar menanam dan mengembangkan jenis tanaman mahoni. Rata-rata diameter batang setinggi dada untuk jenis-jenis tanaman berkayu mulai tingkat tiang (poles: dbh = 10 cm) adalah 20,8 cm (kisaran: 17,0 - 27,3 cm), dan tinggi rata-rata 15,0 cm (kisaran: 11,6 - 20,6 cm). Jumlah pohon per hektar 162 pohon yang terdiri dari jenis mahoni (67 pohon/ha), akasia (38 pohon/ha), sonokeling (25 pohon/ha), jati (9 pohon/ha), sengon (3 pohon/ha) dan jenis lainnnya (20 pohon/ha). Rata-rata luas bidang dasar 4,918 m2 /ha. Rata-rata simpanan biomasa sebesar 38,106 ton/ha yang terdiri dari jenis mahoni 23,119 ton/ha, akasia 7,036 ton/ha, sonokeling 3,440 ton/ha, jati 1,614 ton/ha, sengon 0,464 ton/ha dan jenis lainnya 2,434 ton/ha. Bila diasumsikan 50 % berat biomasa adalah karbon maka rata-rata simpanan karbon di hutan rakyat Desa Nglanggeran sebesar 19,053 ton/ha yang terdiri dari jenis mahoni 11,560 ton/ha, akasia 3,518 ton/ha, sonokeling 1,720 ton/ha, jati 0,807 ton/ha, sengon 0,232 ton/ha dan jenis lainnya 1,217 ton/ha. Penelitian tentang potensi biomasa dan simpanan karbon hutan di hutan rakyat memberi peluang hutan rakyat dalam menyambut era perdagangan karbon.Katakunci: potensi biomasa, simpanan karbon, jenis-jenis tanaman berkayu, hutan rakyat Biomass Potentials and Carbon Storage of Wooden Plants in the Community Forest of Nglanggeran Village, Gunungkidul Regency, YogyakartaAbstractCommunity forests, like any other forests, do not only produce timber and fire-woods but they also function as carbon storage, and therefor they play a very important role in the global carbon cycle. This research aims were (a) determining the types of perennial woods (diameter at breast height, D = 10 cm which grown on community forest of Ngalaggeran Village, (b) determining the growth characteristics of vegetations which make up the community forest, including diameter at breast height, height of trees, tree density and basal area, and (c) determining the biomass and carbon storage in the community forests of Nglanggeran Village.The research used the allometric method to assess the biomass of mahagony, acacia, sonokeling, teak, sengon and the others. The research result showed that there were 25 species of perennial woods, which cultivated by the community forest’s farmers in Nglanggeran Village, most of which is mahagony. The average of stem diameter at breast was 20.8 cm (range between 17.0 and 27.3 cm), and the average height was 15.0 cm (range between 11.6 and 20.6 cm). The tree density per hectare was 162, consisting mostly of mahagony (67 trees per hectare) acacia (38 trees per hectare), sonokeling (25 trees per hectare), teak (9 trees per hectare), sengon (3 trees per hectare) and the others (20 trees per hectare). The average of basal area was 4.918 m2 per hectare. The average biomass was 38.106 tons per hectare which include mahagony 23.119 tons per hectare, acacia 7.036 tons per hectare, sonokeling 3.440 tons per hectare, teak 1.614 tons per hectare, sengon 0.464 ton per hectare and others 2.434 tons per hectare. If it is assumed that 50% of biomass weight is carbon, then the average carbon storage at Nglanggeran Village community forest is 19.053 tons per hectare, which include mahagony 11.560 tons per hectare, and the others 1.217 tons per hectare. The research about forest biomass and carbon stock in a community forest provides a chance of the community forest in preparing to face the carbon trading era.

Normalitas Tegakan Berbasis Resiko untuk Pengaturan Kelestarian Hasil Hutan Tanaman Jati di Perum Perhutani Rohman Rohman; Sofyan P Warsito; Ris Hadi Purwanto; Nunuk Supriyatno
Jurnal Ilmu Kehutanan Vol 7, No 2 (2013)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Hutan tanaman jati yang dikelola oleh Perum Perhutani, dalam berbagai keadaan termasuk kondisi yang relatif aman, selalu memiliki resiko kerusakan yang menyebabkan menurunnya kualitas kelas hutan produktif ke arah tidak produktif. Penelitian ini bertujuan untuk mengetahui standar kenormalan hutan tanaman jati yang mempertimbangkan resiko kerusakan sebagai dasar pengaturan kelestarian hasil. Penelitian ini dilaksanakan di KPH Randublatung Perum Perhutani Divisi Regional Jawa Tengah. Resiko kerusakan (casualty per cent) didekati dari angka kerusakan tegakan berdasarkan data seri selama 4 jangka perencanaan mulai jangka 1983/1992 sampai jangka 2013/2022. Normalitas tegakan didekati dari luas tegakan yang harus dibangun, sedemikian sehingga diperoleh hasil tahunan yang realtif sama dengan mempertimbangkan casualty per cent. Hasil penelitian menunjukkan bahwa luas hutan normal ideal tanpa mempertimbangkan resiko kerusakan di KPH Randublatung dengan luas untuk produksi 27.359,4 ha dan daur 60 tahun adalah sebesar 456,0 ha per tahun. Dengan mempertimbangkan casualty per cent, luas hutan normal berbasis resiko di KPH Randublatung sebesar 229,5 ha per tahun atau 50,3% dari luas normal ideal. Untuk memperoleh hasil tahunan yang realtif sama seluas 229,5 ha, struktur luas hutan yang harus dibangun mulai KU I, KU II, KU III, KU IV, KU V, dan KU VI berturut-turut sebesar 6.875 ha; 5.784 ha; 4.711 ha; 3.997 ha; 3.232 ha dan 2.761 ha.Katakunci: casualty per cent, hutan normal, Perum Perhutani, hutan tanaman jati Risks-based Stand Normality for Sustainable Yield Forest Plantation in Perum PerhutaniAbstractIn any situation, either secure or insecure, teak forest plantations encounter high risks due to ecological and social disturbances, causing degradation and decrease their normality in terms of areas and standing stock. This research aimed to determine the normality standard of teak forest plantations under risks as a basis for better sustained yield regulation. This research was conducted in forest management unit (FMU) of Randublatung, state-owned forest company (Perhutani), located at Central Java. The risk of forest damages, called casualty per cent, was calculated using a series of age class structures based on a 10-year periodic forest inventory for four sequential planning periods:1983/1992, 1993/2002, 2003/2012,to 2013/2022. The normal forest was determined based on the stands area basis, which was defined based on the final cutting area that already incorporates casualty per cent, in such a way that each year the newly planted forests areas have relatively the same number. The results showed that without casualty per cent, the normal forest built every year in FMU Randublatung was 456 ha/year for a 60-year rotation cycle. However, by incorporating the damage risks (casualty per cent), the normal forest area in KPH Randublatung should be built only 229.5 ha/year or just 50.3% of the current planning. Furthermore, in order to obtain this annual harvesting, the normal forests should have age classes structures from age class I, II, III, IV, V, and VI, in such a way that their areas equal to 6,875 ha, 5,784 ha, 4,711 ha, 3,997 ha, 3,232 ha, and 2,761 ha, respectively.

Tingkat Pendapatan Curahan Tenaga Kerja pada Hutan Rakyat di Kabupaten Ciamis Budiman Achmad; Ris Hadi Purwanto; Sambas Sabarnurdin
Jurnal Ilmu Kehutanan Vol 9, No 2 (2015)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Tenaga kerja pada usaha hutan rakyat belum diperhitungkan sebagai faktor produksi yang penting sehingga menyebabkan pendapatan dari hutan rakyat kurang optimal. Penelitian ini dilaksanakan untuk mengetahui pendapatan dan alokasi tenaga kerja pada pengelolaan hutan rakyat serta hubungannya dengan karakter petani. Data dikumpulkan selama bulan Mei sampai Juli 2010 di Desa Ciomas, Desa Kalijaya, dan Desa Kertaharja melalui wawancara pada 60 petani yang dipilih secara sengaja. Data yang terkumpul kemudian dianalisa menggunakan analisis deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan bahwa berdasarkan rata-rata luas pemilikan hutan, usaha hutan rakyat menyumbangkan pendapatan pada petani di Desa Ciomas, Kalijaya, dan Kertaharja Kabupaten Ciamis berturut-turut sebesar Rp 6.641.783,-/th; Rp 8.029.358,-/th, dan Rp 6.302.431,-/th. Mayoritas tenaga kerja di Desa Kalijaya dan Desa Ciomas Kabupaten Ciamis dialokasikan untuk mengelola hutan rakyat yaitu sebesar 104,77 HKP/ha/th dan 216,93 HKP/ha/th, sedangkan alokasi tenaga kerja di Desa Kertaharja sebesar 210,05 HKP/ha/th. Potensi penyerapan tenaga kerja pada sektor pertanian di Kabupaten Ciamis tergolong tinggi, yakni lebih dari 75%. Dalam hubungannya dengan alokasi tenaga kerja, secara umum usia petani mempunyai korelasi positif sedangkan luas lahan mempunyai korelasi negatif.Kata kunci: potensi serapan, alokasi tenaga kerja, pendapatan, hari kerja pria (HKP), luas lahan. Incomes and labor allocation in community forests in Ciamis RegencyAbstractLabor for private forest business has not been considered as an important production factor, which it makes the incomes from the private forests is unfavourable. The research was carried out to find out the incomes and labor allocation on private forests management as well as their correlation to farmer characteristics. Data were collected during May to July 2010 at Ciomas, Kalijaya and Kertaharja villages by interviewing sixty purposively selected farmers. Data were analyzed by qualitative and quantitative description. The results revealed that on the basis of land width ownership, the business earned an income to the farmers in Ciomas, Kalijaya and Kertaharja villages of Ciamis district were 6,641,783 IDR/year; 8,029,358 IDR/year, and 6,302,431 IDR/year, respectively. The labors in Kalijaya and Ciomas villages of Ciamis district were mostly allocated to manage private forests i.e. 104.77 MDW/ha/year and 216.93 MDW/ha/year respectively as labors allocation in Kertaharja village were 210.05 MDW/ha/year. The potency of labor absorption level on agriculture sectors in Ciamis district defined as high, which was more than 75 percent. In relation to labor allocation, generally, ages of farmers had positive correlation while the land width had negative ones.

Optimalisasi Pembagian Batang (Bucking Policy) Kayu Bulat Jati dalam Rangka Meningkatkan Pendapatan KPH Madiun Wahyu Andayani; Ris Hadi Purwanto; Slamet Riyanto
Jurnal Ilmu Kehutanan Vol 11, No 1 (2017)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Pendapatan KPH Madiun akan naik jika metode pembagian batang optimal diimplementasikan, sesuai dengan teori optimalisasi. Hal tersebut karena lebih dari 50% kontribusi pendapatan KPH Madiun Perum Perhutani Unit II Jawa Timur sampai saat ini berasal dari penjualan kayu jati. Produk yang dijual meliputi berbagai sortimen yang ditetapkan dengan kebijakan pembagian batang sesuai “Petunjuk Pelaksanaan Pembagian Batang Kayu Bundar Jati Tahun 2006”. Tujuan penelitian ini adalah menerapkan metode pembagian batang optimal dengan menggunakan teori program linier. Hasil penelitian menemukan bahwa, terdapat 96 alternatif cara pembagian batang dari 6 kelas diameter, dan 16 sortimen terdiri dari : vinir, hara, kayu bahan parket (KBP) untuk kebutuhan industri lokal. Kesimpulan penelitian adalah : pendapatan KPH Madiun meningkat sebesar Rp. 4.599.460/m3, atau sebesar Rp. 8.921.623/pohon, sedangkan realisasi pendapatan usaha yang diperoleh saat ini adalah sebesar Rp. 3.701.503/m3 atau sebesar Rp. 7.179.847/pohon. Dengan demikian jika metode optimalisasi diterapkan nilai ekonomi per pohon akan naik sebesar 24,26% atau setara dengan volume sebesar 1,94 m3.Bucking Policy Optimization of Teak Log to Increase the Revenue of KPH Madiun. AbstractThe revenue of KPH Madiun could have been effectively increased through improvement in its bucking policy implementation. Such implementation had been formulated in this research using optimization theory to generate the maximum total economic values of log assortments cut from felled trees. As teakwood production had been the core business, contributing more than 50 % of the revenue, KPH Madiun Perum Perhutani Unit II East Java had been choosen as the object and location of this research. The research found and analized 96 alternatives of bucking policy implementations, derived from 6 possible diameter classes, and 16 possible assortment quality classes. The log assortment was identified by its diameter, length, and quality, as raw materials of veneer, parquet, and local industry. Through optimization process, the optimum bucking policy could potentially increase revenue of KPH Madiun to the maximum of IDR 4,599,460 per m3, or IDR 8,921,623 per tree of 1.94 m3 average. Comparing to existing revenue of IDR 3,701,503 per m3, or IDR 7,179,847 per tree of the same average, which has been based on the formal bucking policy guidance of um Perhutani Unit II (2006), it could be a significant potential increase of 24.26 % or equal to 1.94 m3.

Fire Regime in a Peatland Restoration Area: Lesson from Central Kalimantan Bekti Larasati; Mamoru Kanzaki; Ris Hadi Purwanto; Ronggo Sadono
Jurnal Ilmu Kehutanan Vol 13, No 2 (2019)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Peat fires have caused carbon emissions and damage to local and regional communities in Indonesia. An effective fire prevention system is required for mitigating climate change and enabling sustainable development of peatlands. This study examined the fire regime in a peatland restoration area in Central Kalimantan in order to assist the establishment of a fire prevention system. The fire regime was analysed using spatial-temporal analysis, land cover change mapping, and logistic regression analysis. Spatial-temporal analysis was done using monthly Niño 3.4 sea surface temperature anomalies, daily rainfall, and MODIS Active Fire (MCD14DL) hotspots from 2006 to 2015. Land cover change was mapped using Landsat imagery from2014, 2015 and 2016. Logistic regression analysis was conducted to identify significant factors that increase fire risk. The temporal analysis showed that the strongest El Niño occurred in 2015, when the region experienced a 140-days drought period. The highest number of hotspots was also observed in this year, with hotspots concentrated in the latter half of drought period. Moreover, spatial analysis using Kernel Density Estimation (KDE) showed fire recur in degraded areas. The logistic regression analysis used topographic and proximity factors, land cover classes, and soil types as independent variables. It showed that fire in 2014 and 2015 was associated with several land cover classes and was related to historical fire occurrence areas based on KDE results. Several area of peatland forests burned in 2015 and occurred at the forest edge areas located near cultivated or degraded land (e.g. shrubland) and oil palm plantations. Based on the results, the fire regime in the study area is characterized by fires that occurring/recurring in relation to climatic conditions, especially drought periods, and are typically located in cultivated or degraded land cover classes. These parameters should be considered in developing a fire prevention system in the restoration area.Rezim Kebakaran Hutan dan Lahan di Area Restorasi Lahan Gambut: Studi dari Kalimantan TengahIntisariKebakaran di lahan gambut menyebabkan emisi karbon dan kerusakan sistem kehidupan masyarakat lokal dan regional. Sistem pencegahan kebakaran yang efektif diperlukan untuk mitigasi perubahan iklim serta mendorong pembangunan lahan dan hutan yang lestari di kawasan gambut. Studi ini meneliti tentang rezim kebakaran hutan dan lahan di suatu kawasan restorasi gambut di Kalimantan Tengah. Rezim kebakaran hutan dan lahan dianalisis menggunakan analisis spasial-temporal, perubahan tutupan lahan, dan regresi logistik. Analisis spasial-temporal menggunakan parameter nilai rata-rata sea surface temperature (SST) bulanan, curah hujan harian, dan hotspot dari MODIS Active Fire (MCD14DL) tahun 2006-2016. Perubahan tutupan lahan dipetakan dengan analisis citra Landsat tahun 2014, 2015 dan 2016. Regresi logistik digunakan untuk menganalisis faktor yang berpengaruh pada peningkatan resiko kebakaran. Analisis temporal terhadap nilai SST tahun 2006-2016 menunjukkan bahwa El- Niño terparah terjadi di tahun 2015 yang memiliki hari tanpa hujan selama 140 hari berturut-turut dan ditemukan titik hotspot terbanyak. Kernel Density Estimation (KDE) digunakan dalam analisis spasial dan hasilnya menunjukkan bahwa kebakaran terjadi dan dapat berulang di area terdegradasi. Regresi logistik menggunakan parameter yang terdiri faktor topografis, kedekatan dengan sungai/kanal, tipe penutupan lahan, serta jenis tanah. Hasil analisis menunjukkan bahwa kebarakan tahun 2014 dan 2015 berhubungan dengan beberapa tipe tutupan lahan di area yang secara historis pernah terbakar berdasarkan analisis KDE, sehingga area tersebut terindikasi telah terdegradasi sebelumnya. Beberapa area hutan di lahan gambut juga mengalami kebakaran pada tahun 2015 khususnya di area tepi hutannya. Berdasarkan hasil, rezim kebakaran di area studi dapat dijelaskan bahwa kebakaran terjadi dan dapat berulang karena pengaruh iklim.

Social Ecological Resilience System of Ambon Island Protected Forest, Maluku Province, Indonesia Parera, Evelin; Purwanto, Ris Hadi; Permadi, Dwiko Budi; Sumardi, Sumardi
Jurnal Penelitian Kehutanan Wallacea Vol. 13 No. 1 (2024)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/jpkwallacea.v13i1.28096

Humans and nature cannot be separated because both have a close relationship as an ecosystem. The purpose of this study was to determine: 1) the level of social and ecological resilience; 2) Scenarios on ecological and social factors for the sustainability of protected forests. The research method uses survey methods and data analysis uses qualitative-verification analysis based on the results of the calculation of the resilience index and the phase of the socio-ecological system. The results showed that the level of social and economic resilience was partially or simultaneously at the level of resilience with their respective indexes: social: 0.6944); ecology: 0.8148 and socio-ecology 0.7460. The exploitation phase (growth) leads to the conservation phase. The results of the scene show that both of them are at a high level of resilience with a resilience index of 0.8889 (high resilience) and a reorganization phase. If this phase can be maintained with various management interventions according to its function, it will minimize the level of disturbance to the Mount Sirimau Protection Forest Group.

Emergent Institutional Issues from New Tenure Reforms and Social-Forestry Initiatives in Indonesia: Notes from The Field Kusuma, Aprisep Ferdhana; Sahide, Muhammad Alif K.; Purwanto, Ris Hadi; Ismariana, Ema; Santoso, Widodo Budi; Wulandari , Eka; Maryudi, Ahmad
Forest and Society Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Forestry Faculty, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/fs.v7i2.28319

In Indonesia, land tenure reform has been approached as a policy priority by the government to address rural poverty and achieve distributive economic equity. It is instituted around allocation and consolidation of land ownership and access. Tenure reform policy promises over 21.7 million hectares (including 16.8 million hectares of forestland) to be distributed through two modes, i.e., land subject to agrarian reform and social forestry. Specifically for Java, the country’s most populated island, the government has recently allocated 1.1 million hectares of state forests to be entrusted to local communities in a scheme called Kawasan Hutan Dengan Pengelolaan Khusus/KHDPK (Forest Zones for Special Management Purposes). Approximately three-quarters of the KHDPK-reserved forestland is pledged for SF licensing/permits to be completed by 2024. Currently, there is heightened activity to hand over social forestry permits. However, the KHDPK-designated forest is not an unoccupied resource that can simply be transferred/granted to local communities. From only four sites, we discovered that the forests have been guided by contrasting (often conflicting) principles, norms, and values that have shaped the existing tenure arrangements, how it is used and managed, and by whom. Such issues must be navigated prior to introducing the new policy and implementation regime. We conclude that while the policy rationales look perfect as a framework, KHDPK implementation exhibits impediments and potential failures. There is risk of altering it into a mere industry of policy rhetoric, sustaining major flaws from design to execution.

Changes in natural forest land cover of the Eucalyptus urophylla type in the Mutis Timau area in 2002-2022, East Nusa Tenggara Province Marimpan, Lusia Sulo; Purwanto, Ris Hadi; Wardhana, Wahyu; Idris, Fahmi; Sumardi, Sumardi
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.5659

Anthropogenic activities carried out by communities around forests in production forests, protected forests, and conservation forests have an impact on changes in the land cover of these areas. This impact is difficult to avoid because, on the other hand, production forests and protected forests are in direct contact with the lives of local communities. Changes in land cover have a significant impact on the contribution of Folu Net Sink, which is set by the government at 31.89% in 2030 with its efforts. This research aims to provide an overview of land cover changes that occurred in natural forests of the Eucalyptus urophylla type from 2002 to 2022. The method used in this research is a supervised/guided digital classification technique. Ground checks were also carried out in this research to match the accuracy of the image data with the actual conditions in the field. The research results show that changes in land cover in 2012 and 2017 were very extreme. Forest fires were the cause of changes in land cover during this period. Meanwhile, in 2002, 2007, and 2022, the land cover was still good, in a positive direction. The causes of changes in land cover are encroachment activities, encroachment, illegal logging, firewood theft, rice fields, forest fires, plantations, and farming. Forest preservation provides very high benefits for life on earth. Therefore, it is important to pay attention to the welfare of local communities so that they do not damage the forest, as well as increase the capacity to educate the community regarding zoning or blocks in conservation and protected forests. Apart from that, good forest management is needed to ensure forest sustainability in the future.

Application of Point Sampling Method in Estimation of Stand Basal Area in Community Forest Mulyana, Budi; Rohman, Rohman; Purwanto, Ris Hadi
Journal of Sylva Indonesiana Vol. 1 No. 01 (2018): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Estimation of the potency of community forest is usually done with the census approach for each forest. Sampling methods to estimate the potency of community forest are still rare. The size of community forest is relatively small, scatter, and less irregular shape, therefore the estimation of community forest potency using sampling plot is difficult to apply. The approach of sampling without a plot (plotless/ point sampling) was cheaper and faster compare to the method of sample plots and direct measurement (census) in predicting basal area. The objective of this research is determining the difference in the average value of basal area using direct measurement of stand (census) and point sampling methods. The research was carried out for 4 months in 30 community forests at Kemuning Village, Gunungkidul District. Materials used to estimate basal area with point sampling method were Spiegel Relascope and Bitterlich Stick with the value of Basal Area Factor 1. Parameters measured were diameter at breast high (dbh) for census method and the number of trees were categorized in or border for point sampling method. The result was analyzed statistically using unpaired t-student. The result showed that the average of basal area of tree in community forest with point sampling method were no significantly different from the average of basal area with census method (Î± = 1%). Therefore, the point sampling method can be considered as a tool in inventory at community forest

Pola tanam dan pendapatan petani hutan rakyat di region atas Kabupaten Ciamis Budiman Achmad; Ris Hadi Purwanto,; Sambas Sabarnurdin; Sumardi Sumardi
Jurnal Kawistara Vol 6, No 3 (2016)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/kawistara.23014

Co-Authors Abd. Kadir W. Abd. Kadir W. Abd. W Kadir, Abd. W Abd. W. Kadir, Abd. W. Abdul Rachman Suryo Pratomo Afni Atika Marpaung Afni Atika Marpaung Agik Dwika Putra Agik Dwika Putra Agus Pramusinto Agus Setyarso Ahmad Maryudi Ahmad Maryudi Ahmad Maryudi Ahmad Maryudi Bekti Larasati Budi Mulyana, Budi Budiman Achmad Budiman Achmad Budiman Achmad Catur Atmaji Chafid Fandeli Chafid Fandeli Dian Asih Kurniasari Dwiko Budi Permadi Dyah Ethika, Dyah Eko N Setiawan Emma Soraya, Emma Erny Poedjirahajoe Evelin Parera Evelin Parera Fransiskus Xaverius Dako Fransiskus Xaverius Dako Fransiskus Xaverius Dako, Fransiskus Xaverius Gabriel Lele Hafizah Arinah Hatma Suryatmojo Idris, Fahmi Iin Sumbada Sulistyorini, Iin Sumbada Ilham Satria Raditya Putra Ilham Satria Raditya Putra Imanuddin Imanuddin Ismariana, Ema Kusuma, Aprisep Ferdhana La Ode Agussalim Mando Lies Rahayu WF Lies Rahayu Wijayanti Faida Lies Rahayu Wijayanti Faida Lies Rahayu Wijayanti Faida Lies Rahayu Wijayanti Faida Lusia Sulo Marimpan Makmun Sanjaya Mamoru Kanzaki Masyhuri Masyhuri Melikaries Silaban Much. Taufiq Tri Hermawan Muh. Taufik Tri Hermawan Muhamad Faqih Hidayatullah Muhammad Tafakur Azim Muli Edwin, Muli Nius Abdi Ginting Nunuk Supriyatno Priyono Suryanto Probo Santoso Puspita Intan Sari Puspita Intan Sari Putri, Amaliyah Putri, Indah Riadi Ridwan Syaâ€™rani Rina Reorita Rohman Rohman Rohman Rohman Rohman Rohman Ronggo Sadono S Sanudin S. Agung Sri Raharjo Sahide, Muhammad Alif Kaimuddin Sambas Sabarnurdin Sambas Sabarnurdin San Afri Awang San Afri Awang San Afri Awang San Afri Awang San Afri Awang Santoso, Widodo Budi Sanudin Sanudin Sanudin Sanudin Satya Agustina Laksananny satya laksananny Selanno, Frenly M. Senawi Setyarso, Agus Siti Nurul Rufiqo Siti Nurul Rufiqo, Siti Nurul Slamet Riyanto Sofyan P Warsito Sofyan P Warsito Sri Wahyuni Sarah Siallagan Suhartati, Tatik Sukristiyono Sukristiyono Sukristiyono Sukristiyono Sumardi Sumardi Sumardi Sumardi . Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Sumardi Susan Trida Salosa, Susan Trida Tatag Muttaqin Tatik Suhartati Teguh Yuwono Teguh Yuwono Tri Satyatama Ummu Kalsum Ummu Kalsum Wahyu Andayani Wahyu Andayani Wahyu Wardhana Wulandari , Eka

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