Jurnal Warta Rimba
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PENGARUH BERBAGAI INTENSITAS CAHAYA DAN PENYIRAMAN TERHADAP PERTUMBUHAN SEMAI GLODOKAN (Polyalthia longifolia Sonn) DI PERSEMAIAN
Full text linkThis research was conducted for three months, from November 2019 to January 2020 at the BPDASHL Palu Poso Permanent Nursery, which is located on the Tadulako University. This research method used was randomized block design (RBD) factorial pattern. This research consisted of 6 treatments combinations and three groups, which is group 1, seedlings with 3-4 leaves, group 2, seedlings with 5-6 leaves and group 3, seedlings with 7-8 leaves, so there were 18 units. Each experimental unit consists of 4 seedlings so that the total is 6 x 3 x 4 = 72 seedlings. The parameters observed were the increase in height, diameter, number of leaves, and seedling strength. Data analysis used a Randomized Block Design (RBD) factorial pattern with analysis of variance (F test), there was a significant effect, so to find out the difference between treatment was carried out an honest real difference (HRD) test of 5% .The results showed that various light intensities and watering had no significant effect on all observed parameters. However, there was a tendency for light intensity and N3P2 watering gave a better response to the height increase of glodokan seedlings, light intensity treatment and N2P1 watering gave a better response to the increase in diameter of glodokan seedlings, light intensity treatment and N1P2 watering gave a better response to the increase number of leaves, while the light intensity treatment and N1P1 watering gave good responses to the increased strength of glodokan seedlings compared to other treatments.Keyword: Polyalthia longifolian, Light Intensity, Luxmeter
PENGARUH KONSENTRASI PUPUK ORGANIK CAIR DAUN KELOR TERHADAP PERTUMBUHAN SEMAI GLODOKAN (Polyalthia longifolia Sonn.)
Full text linkGlodokan called Ashok tree can reach up to 25 feet tall and form columnar shapes. The leaves are glossy green, long, with wavy leaf edges. The problem of glodokan seedling growth which produces seedlings that are not superior in terms of quality. This might be caused by the growing media that less nutrients to supply the growth of glodokan seedlings. To overcome this problem, the application of liquid organic fertilizers containing nitrogen, phosphorus, and potassium is able to improve the seedling growth by increasing the total leaf area and the amount of chlorophyll, which in this case is directly related to the photosynthesis process and increased production through accumulation. The purpose of this study was to determine the growth of Glodokan (Polyathia longifolia) seedlings with the addition of liquid organic fertilizer on Moringa (Moringa oleifera L) leaf. The results showed that the effect of the concentration of liquid organic fertilizer of Moringa leaves had a significant effect on height increase, stem diameter,and increase in number of leaves. The best results were in treatment P4 (20% POC daun kelor/l larutan) with an average height increase of 5.11 cm, an average stem diameter growth of 1.49 mm, the average increase in leave numbers were 3.1 sheets.Keywords: Glodokan, seedlings, liquid organic fertilizer, Moringa leaf, Polyalthia longifolia soon
PERTUMBUHAN SEMAI AQUILARIA MALACCENSIS LAMK DAN GYRINOPS VERSTEEGII GILG PADA BERBAGAI DOSIS FUNGI MIKORIZA ARBUSKULAR
Full text linkAgarwood-producing plants have fairly slow growth in the seedling phase, the growth of agarwood seedlings of Aquilaria malaccensis Lamk and Gyrinops versteegii Gilg types can be influenced by environmental conditions and the ability of seedlings to absorb nutrients. The use of mycorrhizae in agarwood seedlings can improve the quality of agarwood seedlings. The objectives of this study are to get the best interaction of mycorrhiza doses and types of agarwood against the growth of Aquilaria malaccensis and Gyrinops versteegii that were tried; mycorrhizae that gives the best effect on the growth of Aquilaria malaccensis and Gyrinops versteegii that were tried; and best type of seed agarwood in the type of agarwood that is tested.This research was conducted from February to May 2019. This research uses a completely randomized factorial design method, which consists of two factors.The first factor is M1= mycorrhiza 0 gr/polybag, M2= mycorrhiza 7 gr/polybag, M3= mycorrhiza 14 gr/polybag and the second factor is the type of seed agarwood G1= Aquilaria malaccensis, and G2=Gyrinops versteegii, so there are 6 treatment combinations (M1G1, M1G2, M2G1, M2G2, M3G1, and M3G2). Each treatment combination was repeated 5 times. The parameters observed were, seedling height increase; increase in number of leaves; and increased rod diameter.The results showed that there was no interaction effect between mycorrhizal dose and type of agarwood on all observed variables, but there was a tendency for the best treatment, M2G1 (mycorrhiza 7g/polybag + Aquilaria malaccensis). Mycorrhiza dose which gives the best effect is M2 (mycorrhiza 7g/polybag). And the type of agarwoods that gives the best effect is G1 (Aquilaria malaccensis).Keywords : Agarwood, Mycorrhiza, Aquilaria, Gyrinop
PERUBAHAN IKLIM BERDASARKAN DATA CURAH HUJAN STASIUN BORA DENGAN MAKASENS 1.0
No full textPerubahan iklim dengan hujan ekstrim yang terjadi saat ini merupakan salah satu isu lingkungan yang sangat penting, karena tidak hanya dibicarakan di Indonesia tetapi juga di seluruh dunia. Berbagai penelitian ilmiah menunjukkan hasil sisa pembakaran hutan, batu bara, kayu, minyak dan gas yang telah meningkat hampir mendekati angka 20% sejak dimulainya revolusi industri yang menyebabkan seluruh wilayah Indonesia mengalami kenaikan suhu udara. Dengan laju yang lebih rendah dibanding wilayah subtropis, wilayah selatan Indonesia mengalami penurunan curah hujan, sedangkan wilayah utara akan mengalami peningkatan curah hujan. Latar belakang inilah yang diduga penyebab terjadinya banjir di wilayah Kabupaten Sigi akibat perubahan iklim dan hujan ekstrim. Penelitian ini bertujuan untuk mengidentifikasi apakah terjadi perubahan iklim di DAS Wino berdasarkan data curah hujan stasiun Bora dengan mempelajari karakteristik hujan harian terbesar, rerata bulanan dan tahunan dari hasil analisis Mann-Kendall. Studi dilakukan dengan pengumpulan data hujan dan peta DAS tersebut untuk kemudian digunakan dalam penentuan hujan harian maksimum, tahunan dan rerata bulanan dengan menggunakan software Makesens 1.0 dengan data hujan yang digunakan dari stasiun curah hujan Bora dengan pengamatan sepanjang 37 tahun (mulai tahun 1984 sampai tahun 2020). Hasil penelitian menunjukan adanya indikasi perubahan iklim di DAS Wino tapi tidak signifikan
PERSEPSI WISATAWAN TERHADAP PENERAPAN SAPTA PESONA DI KAWASAN HUTAN MANGROVE PETENGORAN KABUPATEN PESAWARAN PROVINSI LAMPUNG
Full text linkHutan mangrove memiliki peran yang penting dalam keberlangsungan hidup manusia. Salah satu upaya dalam mencegah terjadinya perluasan kerusakan hutan mangrove dapat dilakukan dengan kegiatan wisata alam. Kegiatan Wisata alam pada hutan mangrove dinilai dapat selaras dengan langkah konservasi ekosistem hutan secara nyata. Penerapan Sapta Pesona merupakan salah satu upaya untuk memberikan pelayanan prima kepada wisatawan.Penelitian ini bertujuan untuk mendeskripsikan kondisi lokasi wisata di hutan mangrove Petengoran dan persepsi wisatawan terhadap penerapan sapta pesona di kawahan hutan mangrove Petengoran. Metode pengumpulan data pada penelitian ini menggunakan Teknik wawancara dan observasi lapangan yang kemudian dianalisis secara deskriptif kualitatif menggunakan skala likert. Pengambilan sampel responden menggunakan Teknik random sampling, pada penelitian ini digunakan 44 wisatawan sebagai responden. Hasil penelitian menunjukkan bahwa implementasi sapta pesona di Kawasan hutan mangrove petengoran berdasarkan persepsi wisatawan terbagi menjadi dua kategori, yaitu kategori cukup pada unsur keamanan, keramahan, dan kenangan. Kategori baik pada unsur ketertiban, kebersihan, kesejukan, dan keindahan. Pengelolaan pada Kawasan hutan mangrove Petengoran dinilai masih perlu ditingkatkan dengan ikutserta melibatkan pengelola dan masyarakat sekitar agar lebih optimal dalam pengelolaannya
KUALITAS BRIKET ARANG DARI BAHAN BAKU CANGKANG KEMIRI (Auleoretes moluccana) DAN LIMBAH GERGAJIAN KAYU PALAPI (Heritiera javanica)
Full text linkThe composition of the mixture of palapi sawdust and candlenut shell charcoal gave a significant effect on the ash content, volatile matter content and the density of charcoal briquettes. The purpose of this study was to determine the quality of the raw material for charcoal briquettes from hazelnut shell and Palapi sawn wood waste from various treatments of the mixture starch. This research was carried out from March to April 2020. The process of making charcoal at BTN Lasoani and making charcoal briquettes took place at the Mechanical Engineering Laboratory, Faculty of Engineering, Tadulako University, while the testing took place at the Nutrition and Feed Laboratory, Faculty of Animal Husbandry, Tadulako University. The results of this study The average value of charcoal briquette testing from various treatments, namely: Water content 1.8% - 7.9%, ash content 1.36% - 4.69%, bound carbon content 80.62% -85.14% , volatile matter content 6.80% - 10.57%, density 0.59% - 1.16%, and a heating value of 1569.02 cal / g - 2070.81 cal/g.Keywords: Briket arang, Cangkang Kemiri, Limbah Gerjajian
KEANEKARAGAMAN JENIS ANGGREK TANAH DI KAWASAN TAMAN NASIONAL LORE LINDU DESA MATAUE KECAMATAN KULAWI KABUPATEN SIGI
Full text linkOrchids are generally known to the public as ornamental plants. Soil orchids are orchids whose roots develop entirely in the soil or include plants (terrestrial). This study aims to determine the diversity of soil orchid species and the level of diversity and evenness of species. The research was conducted from April and June, in the forest area of Lore Lindu National Park, Mataue Village, Kulawi District, Sigi Regency, using purposive sampling method by plotting 20 x 20 meters and using descriptive data analysis. Based on the research results of soil orchids found as many as 8 genera consisting of 10 species. The genera found were Arundina, Arachnis, Coelogyne, Calanthe, Cypripedium, Cymbidium, Grammatophyllum, Spathologttis. While the diversity of soil orchid species is classified as moderately abundant, with a species diversity index value (H') of 1.7395 as many as 98 individuals. The highest H' index was Cymbidium sp orchid species, while the lowest index was Coelogyne celebensis J.J.Sm with an H' value of 0.1067 as many as 3 individuals. The evenness index of soil orchid species is high and evenly distributed, with a Species Evenness Index (E) of 0.7554.Keywords: Diversity, Orchid, Specie
PERTUMBUHAN DAN SERAPAN HARA SEMAI MAHONI (Swietenia mahagoni (L) Jacq) PADA PEMBERIAN KOMPOS TANDAN KOSONG KELAPA SAWIT DAN PUPUK ORGANIK CAIR DAUN GAMAL
Full text linkPenelitian bertujuan mengetahui pertumbuhan dan serapan hara semai mahoni pada pemberian kompos tandan kosong kelapa sawit dan pupuk organik cair daun gamal. Penelitian dilakukan pada bulan November 2020 sampai dengan Februari 2021. Penelitian menggunakan Rancangan Acak Lengkap (RAL) pola factorial, terdiri dari dua faktor yaitu komposisi kompos tandan kosong kelapa sawit dan konsentrasi pupuk organik cair daun gamal. Parameter penelitian yaitu Pertambahan tinggi, pertambahan jumlah daun, pertambahan diameter, berat basah, berat kering, indeks mutu bibit dan analisis kandungan serapan hara N, P, dan K. Hasil penelitian menunjukkan bahwa analisis ragam interaksi perlakuan antara komposisi kompos tandan kosong kelapa sawit dan konsentrasi pupuk organik cair daun gamal berpengaruh sangat nyata terhadap tinggi tanaman, jumlah daun, berat basah, berat kering dan indeks mutu bibit tetapi berpengaruh tidak nyata terhadap diameter semai mahoni. Perlakuan terbaik yaitu K1P2 (Tanah : Kompos TKKS 1:1 + POC daun gamal 200 ml/l
PENGARUH VARIASI SUHU TOREFAKSI TERHADAP PERUBAHAN WARNA DAN SIFAT FISIK PELET KALIANDRA (Calliandra calothyrsus)
Full text linkIndonesia memiliki sumber bahan baku yang melimpah untuk produksi pelet biomassa. Salah satu tumbuhan yang berpotensi untuk dijadikan bahan baku pembuatan wood pellet adalah Kaliandra (Calliandra calothyrsus). Penelitian ini mengkaji pengaruh suhu torefaksi terhadap perubahan warna dan sifat fisik pelet kaliandra. Torefaksi dilakukan dengan electric furnace selama 50 menit menggunakan suhu 200°C, 220°C, 240°C, 260°C, dan 280°. Parameter yang dievaluasi terdiri dari perubahan warna dan penurunan berat. Parameter warna yang diukur berupa kecerahan (L*), kromatisasi kuning/biru (b*), kromatisasi merah/hijau (a*), dan perubahan warna (∆E*). Evaluasi perubahan warna diukur dengan Colorimeter menggunakan sistem warna CIE-Lab*. Hasil penelitian menunjukan torefaksi mempengaruhi warna pelet kaliandra. Semakin tinggi suhu yang digunakan, maka ∆E* akan meningkat. Perubahan warna secara total terjadi pada suhu 220°C, 240°C, 260°C, dan 280°C ditandai dengan nilai ∆E*>12. Berat pelet kaliandra menurun setelah perlakuan panas. Penurunan terbesar terjadi pada suhu 280°C, hal tersebut dikarenakan kerapatan dan kadar air pada pelet akan menurun seiring dengan meningkatnya suhu torefaks
ANALISIS KESEHATAN HUTAN MANGROVE MENGGUNAKAN CITRA SENTINEL 2 DI KECAMATAN BALINGGI KABUPATEN PARIGI MOUTONG
Full text linkMangrove forests in Central Sulawesi Province experienced a very drastic decline in population, one of the causes was the ongoing conversion of mangrove land activities that resulted in a decline in the health of mangrove forests. In monitoring mangrove areas, especially in wide and difficult-to-reach areas, remote sensing techniques are needed to analyze them. The purpose of this study was to determine the health classification of mangrove forests from sentinel image 2 use NDVI values in Balinggi District, Parigi Moutong Regency and find out the correlation of NDVI values with the density of mangrove species in field of health classification of mangrove forests in the District Balinggi, Parigi Moutong Regency. This research was carried out in the Mangrove Forest of Balinggi District, Parigi Moutong Regency in April-June 2019. In this study, I used the stratified random sampling method, in which populations were included in non-overlapping groups. The results of this study indicate that there are 5 mangrove forest health classifications based on NDVI values, namely the first classification, there are 48.01 ha or 51% with very good mangrove conditions. Second, 39.75 ha or 42% with good mangrove conditions. Third, 3.95 ha or 4% with normal mangrove conditions. Fourth, 1.37 ha or 1% with poor mangrove conditions. Fifth, 1.93 ha or 2% with very bad mangrove conditions, besides that a very strong correlation was found (84.1%) on the density of mangrove species in the field with NDVI values in the mangrove health classification. Mangrove forests in Central Sulawesi Province experienced a very drastic decline in population, one of the causes was the ongoing conversion of mangrove land activities that resulted in a decline in the health of mangrove forests. In monitoring mangrove areas, especially in wide and difficult-to-reach areas, remote sensing techniques are needed to analyze them. The purpose of this study was to determine the health classification of mangrove forests from sentinel image 2 use NDVI values in Balinggi District, Parigi Moutong Regency and find out the correlation of NDVI values with the density of mangrove species in field of health classification of mangrove forests in the District Balinggi, Parigi Moutong Regency. This research was carried out in the Mangrove Forest of Balinggi District, Parigi Moutong Regency in April-June 2019. In this study, I used the stratified random sampling method, in which populations were included in non-overlapping groups. The results of this study indicate that there are 5 mangrove forest health classifications based on NDVI values, namely the first classification, there are 48.01 ha or 51% with very good mangrove conditions. Second, 39.75 ha or 42% with good mangrove conditions. Third, 3.95 ha or 4% with normal mangrove conditions. Fourth, 1.37 ha or 1% with poor mangrove conditions. Fifth, 1.93 ha or 2% with very bad mangrove conditions, besides that a very strong correlation was found (84.1%) on the density of mangrove species in the field with NDVI values in the mangrove health classification