EFFECTIVENESS OF CONCENTRATION OF GROWTH REGULATORY SUBSTANCES ON THE GROWTH OF KALIANDRA (Calliandra callothyrsus) TRUNK

The potential of our energy sources in Indonesia is getting thinner day by day. Energy sources that come from fossils if we take it continuously will run out and cannot be renewed. Therefore, it is necessary to have an alternative source of renewable energy, one of the renewable energies to replace fossil energy, is wood biomass. One of the woods that can be used as a renewable energy source is Kaliandra wood (Calliandra calothyrsus). Calliandra (Calliandra callothyrsus) is a type of tree that can grow throughout the year. The problem faced in generative breeding of Kaliandra is the low seed germination caused by Kaliandra seeds having hard seed dormancy, and the skin has a waxy coating. To overcome the problem of meeting the needs of Kaliandra wood in energy resources, vegetative propagation of plants is needed, one of which is stem cuttings. This study aims to determine the level of effectiveness of the successful growth of Kaliandra stem cuttings using various concentrations of growth regulator Rootone F. The research method used is quantitative by conducting various experiments, namely treatment of Kaliandra stem cuttings without treatment, treatment using Rootone-f hormone with concentration (100 ppm), and treatment using the hormone Rootone-f with a concentration (200 ppm). The results showed that the number of shoots and the number of leaves were the same in each treatment, namely 1 shoot. The length of shoots in the Rootone F hormone treatment with a concentration of 100 (ppm), produced the largest shoot length of 0.71 cm, the percentage of life in the Rootone F hormone treatment with a concentration of 100 ( ppm) was 6.67%, and the root length of Kaliandra cuttings on Rootone F hormone treatment with a concentration of 100 (ppm) produced the largest 0.25 cm.

EFFEKTIFITAS ZAT PERANGSANG TUMBUH TERHADAP PERTUMBUHAN STEK BATANG BALIK ANGIN (Mollotus paniculatus)

Potensi sumber energi kita yang ada di negara Indonesia semakin hari semakin menipis yang disebabkan diambil secara terus menerus. Sumber energi yang berasal dari fosil ini jika kita ambil secara terus-menerus akan habis dan tidak bisa terbaharukan.  Oleh karena itu perlu adanya altarnatif sumber energi yang bisa diperbaharui, salah satunya energi yang bisa diperbaharui untuk menggantikan energi fosil, adalah biomasa kayu. Salah satu Kayu yang bisa di jadikan sumber energi yang bisa diperbaharui adalah kayu Balik Angin (Mollotus paniculatus). Balik Angin (Mollotus paniculatus) merupakan jenis pohon teduhan yang dapat tumbuh di hutan gugur dan hijau sepanjang tahun. Permasalahan yang ada pada perbanyakan tanaman secara generatif untuk tanaman Balik Angin adalah benih hanya bisa didapat pada musim-musim tertentu saja, sehingga perlu adanya dilakukan penelitian perbanyakan tanaman secara vegetatif salah satunya stek batang. Penelitian ini bertujuan untuk mengetahui tingkat efektifitas keberhasilan pertumbuhan stek batang Balik Angin (Mollotus paniculatus) dengan menggunakan berbagai konsentrasi zat pengatur tumbuh (Rootone F). Metode penelitian yang digunakan adalah kuantitatif dengan melakukan berbagai eksperimen perlakuan terhadap stek batang Balik Angin yaitu tidak diberi perlakuan   S0K Tanpa perlakuan (0 ppm) S1K Perlakuan mengunakan hormon Rootone-f dengan konsentrasi  (100 ppm), S2K Perlakuan mengunakan hormon Rootone-f dengan  konsentrasi  (200 ppm). Untuk tingkat pertumbuhan rata-rata pertumbuhan. Jumlah tunas perlakuan SOA (tanpa perlakuan)  1 tunas, S1A (100 ppm) 1 tunas S2A (200 ppm) 1 tunas. Panjang tunas perlakuan S0A (tanpa perlakuan) 2,83 cm, S1A (100 ppm) 1,72 cm, S2A(200 ppm) 0,23 cm. Jumlah jumlah perlakuan S0A (tanpa perlakuan) 2 helai,S1A (100 ppm) 1 helai, S2A (200 ppm) 1 helai. Presentase hidup perlakuan S0A ( tanpa perlakuan) 11,1 %, S1A (100 ppm) 25,5 % S2A (200 ppm) 4,44 %, panjang akar  perlakuan S0A (tanpa perlakuan  )0,421 cm, S1A (100ppm) 1,07 cm, S2A (200 ppm) 0,18 cm

INVENTORY AND IDENTIFICATION OF NTFPS IN THE RED RIVER PROTECTED FOREST AS THE BASIS FOR DEVELOPING COMMUNITY EMPOWERMENT PROGRAMS

The Sungai Merah Protection Forest is close to community settlements. As the population increases, the need for arable land will also increase, so that many people cultivate protected forests into arable land in the form of plantations. On this basis, through the NTFP development program with a community empowerment pattern, it is hoped that protected forests can provide social and economic functions for the community while still paying attention to their ecological functions. In preparing the NTFP development program it is not yet known and there is no data on potential NTFPs that can be developed. This study aims to inventory and identify the types of each non-timber forest product species recorded (classification and nomenclature, morphological characteristics and the beneficial value of the species) of non-timber forest products (HHBK) in the Sungai Merah Protection Forest. The sampling method was carried out by purposive sampling. The selection of samples is based on classification or cluster based on the classification of land cover types resulting from the interpretation of images using GIS software. The sampling intensity to be used is 0.1%. The plot size to be used refers to the guidelines for surveying natural forests and community cultivated plants, namely a plot area of 0.1 ha with a rectangular plot shape (20x50) meters. Rectangular plot shape 20 x 50 m (0.1 ha). the results of data analysis on NTFP secondary forest were dominated by shuji plants, the highest Relative Density (KR), Relative Frequency (FR) and Importance Value Index (INP), namely 28.72%, 20.14% and 48.86 respectively %., while the plantation area was dominated by rubber plants with density, frequency, and dominance of 80.00, 0.25, and 18003.10. This shows the important role of these plants in the protected forest area of the Red River

PENINGKATAN KESUBURAN TANAH MELALUI TEKNIK KONSERVASI VEGETATIF DENGAN PENAMBAHAN PUPUK KANDANG

Penggunaan agrokimia dan pestisida pada lahan dalam kurun waktu yang panjang akan berdampak pada kehidupan biota tanah dan menurunnya kandungan bahan organic. Salah satu metode untuk meningkatkan kesuburan tanah yaitu konservasi vegetatif dan penggunaan bahan organik. Penelitian ini bertujuan untuk mengetahui peranan pupuk kandang dalam meningkatkan kesuburan tanah pada lahan yang sudah diberi perlakukan teknik konservasi vegetatif. Bahan yang digunakan dalam penelitian ini adalah pupuk kandang sebagai perlakukan serta bibit kopi (Coffea robusta) dan kayu afrika (Maesopsis eminii Engl.) sebagai indikator. Nilai kimia tanah pada lahan yang telah dilakukan teknik konservasi vegetatif dan dilakukan penambahan pupuk kandang memberikan nilai PH 5; C-Organik 43,87; unsur N 4,13; P-bray 225,68; K-dd 3,48 dan KTK 37,40. Persentasi penambahan nilai adalah 17,10% untuk PH; 123,83% C-Organik; 173,51% unsur N; 434,15% P-bray; 1.238,46% K-dd dan 145,57% KTK. Nilai persentasi penambahan sipat kimia tanah dari lahan yang baru diberi perlakukan dengan teknik konservasi vegetatif dan lahan yang dilanjutkan dengan penambahan pupuk kandang adalah tidak ada penambahan nilai untuk PH; 108,72% C-Organik; 96,03% unsur N; 422,98% P-bray; 869,23% K-dd dan 143,40% KTK. Nilai pertumbuhan tanaman indikator untuk tanaman kopi (Coffea robusta) adalah persen hidup 84%; diameter 0,2 cm; tinggi 8,7 cm dan untuk nilai pertumbuhan kayu afrika (Maesopsis eminii Engl.) perse hidup 76%; diameter 0,2 cm; tinggi 7,7 cm

KONTRIBUSI AGROFORESTI REPONG DAMAR TERHADAP PENDAPATAN MASYARAKAT

Sumberdaya hutan mempunyai fungsi terhadap kehidupan manusia, baik secara langsung, maupun secara tidak langsung. Salah satu cara untuk mengurangi kerusakan hutan adalah diikutsertakan masyarakat dalam memelihara hutan misalnya dengan sistem agroforestri. Sistem agroforestri selalu ada interaksi ekologi, sosial dan ekonomi. Salah satu contoh agroforestri tersebut adalah Repong Damar di Pesisir Krui Lampung yang menghasilkan produk getah damar (Shorea javanica). Penelitian dilakukan di Desa Penengahan, Kabupaten Pesisir Barat, Provinsi Lampung selama 2 bulan. Populasi penelitian adalah masyarakat (petani damar) dengan jumlah responden sebesar 35 KK. Penelitian ini menggunakan metode penelitian deskriptif dengan pendekatan kuantitatif dan kualitatif. Parameter pendapatan masyarakat yang diukur adalah pendapatan dari usaha mengelola Repong Damar (dalam Rp. per tahun), pendapatan di luar usaha mengelola Repong Damar (dalam Rp. per tahun), dan pendapatan per kapita (dalam Rp. per tahun). Petani Repong Damar di Desa Penengahan memiliki rata-rata pendapatan dari Repong Damar sebesar Rp. 16.120.000/KK/tahun, Pendapatan di luar Repong Damar berkisar antara Rp. 4.200.000/KK/tahun sampai dengan Rp. 24.000.000/KK/tahun dan rata-rata pendapatan per kapita masyarakat di Desa Penengahan adalah sebesar Rp.5.169.200/orang/tahun atau Rp. 430.800/orang/bulan. Faktor yang mempengaruhi aspek pendapatan masyarakat tersebut adalah jumlah anggota rumah tangga, luas lahan Repong Damar, dan sumber pendapatan masyarakat yang berbeda-beda

SEJARAH PENGUASAAN HUTAN DAN POLA PEMANFAATAN LAHAN OLEH MASYARAKAT DI SEKITAR KAWASAN HUTAN KPHP RAWAS KABUPATEN MUSI RAWAS UTARA

Permasalahan sosial kehutanan yang paling krusial adalah okupasi lahan oleh masyarakat menjadi lahan perkebunan, pertanian dan pemukiman. Beberapa skema pola pemberdayaan masyarakat sudah diakomodir oleh pemerintah, namun dalam pelaksanaannya masih banyak terjadi kendala antara lain tidak diketahuinya luas lahan garapan dan pola pemanfaatan lahan yang dilakukan oleh masyarakat. Tujuan penelitian ini adalah untuk mengetahui sejarah desa dan penguasaan kawasan hutan, serta pola pemafaatn lahan oleh masyarakat sekitar hutan KPHP Rawas. Ada dua tipe desa yakni desa lama dan desa transmigrasi dan penguasaan kawasan hutan dimulai dengan sistim pengelolaan HPH.Lahan pemukiman berkisar 30% dan 70% merupakan lahan garapan. Rata-rata lahan garapan yang dimiliki masyarakat adalah 1-2 ha. Pola pembukaan lahan pada umumnya memakai sistim tebang bakar. Saat ini interaksi masyarakat dengan hutan hanya sebatas memenuhi kebutuhan lahan garapan. Pengetahuan masyarakat tentang hutan masih kurang (<50%) menyatakan tidak tahu

ANALYSIS ON THE CHARACTERISTICS OF EX-MINING SOIL AFTER 5 YEARS AND 10 YEARS OF REVEGETATION

Open-pit mining has affected landscapes and ecosystem balances immensely. The effects are including altered soil surface, decreased soil productivity, soil compaction, erosion and sedimentation, declined biodiversity, as well as deteriorated hydrological, hydrogeological, and atmospheric function of the surrounding area. Reclamation is one of the environmental restoration efforts that could be taken to improve these conditions. Physical and chemical properties of soil are the indicators of soil damage level as well as the success indicator of the reclamation program. This study aims to analyze the changes in post-mining soil characteristics after 5 years and 10 years of revegetation. The sample was selected by the purposive sampling method based on the age of plants and the vegetation density. The physical properties of post-coal soil after 5 years of revegetation are characterized by high soil acidity, low in organic matter (OM)/soil organic carbon (SOC), very low total N (nitrogen), moderate P availability, extremely high K2O, and moderate CEC. Whilst, the post-coal mining soil after 10 years of revegetation is found to be acidic (low pH), with moderate SOC, low total N, low P, very high K2O, and moderate CEC. Heavy metal (Fe, Mn, Al) contents in ex-coal mining reclamation area after 5 years and 10 years revegetation found to be in the high category. &nbsp; Key words: post-mining land, revegetation, soil characteristic

A Study of Above-Surface Carbon Storage in the Post-Coal Mining AREA of PT Bukit Asam

Both biotic and abiotic natural resources are the capital of the biosphere that may be exploited to meet human needs and promote human welfare. Global warming is a consequence of increasing environmental degradation. During photosynthesis, trees may collect carbon from the atmosphere, separate carbon from oxygen, and release oxygen back into the atmosphere. This investigation was conducted on post-coal mining reclamation land that PT. Bukit Asam (BA) restored in 2009, 2012, and 2015. This study employs a quantitative approach with a purposive sampling methodology. The utilized sampling intensities were 1%, 2.5%, and 5%. The plot chosen is a 20-by-20-meter rectangle. Carbon storage for the 2009 planting time averaged 40.57 tons per hectare over a total area of 32.89 ha. Carbon storage for the planting year of 2012 with a total area of 5.73 hectares and an average carbon storage of 26.37 tons per hectare. Carbon sequestration in 2015 with a total area of 3.90 hectares and an average carbon storage of 20.86 tons per hectare

STUDY OF NATURAL BEE HONEY PRODUCTION FROM THE BUKIT GATAN PROTECTED FOREST AREA, SOUTH SUMATERA PROVINCE

This research was conducted to determine the types of bees produced, the amount of production produced in each colony, branches, trees, and the total production produced by honey bees, as well as the harvesting, processing, and marketing production processes carried out. The research method used is a survey, while the sampling method used is a combination of purposive sampling and snowball sampling. The data collection method used in this study was direct observation and interviews with informants using a list of questions. Data analysis was carried out descriptively quantitatively. Furthermore, the amount of production is calculated by the census. The results showed that the type of bee produced was Apis dorsata, the amount of honey produced in each colony was 8.4 kg/year on average, each branch had a colony with an average of 1.82 colonies/branch, and each tree had an average number of an average of 10.3 colonies/tree. The amount of honey production per harvest in August is an average of 44.3kg/month and in September is an average of 43kg/month with an average total production of 87.3kg/year and the harvesting production process consists of preparing tools, installing ladders, climbing , fumigating, slicing the nest and lowering the nest, then the honey processing production process consists of filtering and packaging honey, and the marketing production process is carried out by promoting honey through communication between consumers

PARTISIPASI MASYARAKAT DALAM PENGENDALIAN KEBAKARAN LAHAN GAMBUT DI DESA MUARA MEDAK KECAMATAN BAYUNG LENCIR KABUPATEN MUSI BANYUASIN PROVINSI SEMATERA SELATAN

Community Participation in Peatland Fire Control in Muara Medak Village, Bayung Lencir Subdistrict, Musi Banyuasin Regency, Sumatera Selatan Province. This research aims to determine how much the level of community participation in responding to peatland fire control that often occurs when the dry season comes. This research was conducted in Muara Medak Village, Bayung Lencir Subdistrict, Musi Banyuasin Regency of Sumatera Selatan Province from March to August 2016. The method used research is the purposive sampling by taking sample 10%. Based on the results obtained in this research that some people in Muara Medak Village have participated in the peatland fire control, it is seen from the meeting of the interest the people who do land processing still take into account in order to avoid the spread of land fires during the land clearing