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The effect of flooding and light competition on the planting success of degraded tropical peatland Dony Rachmanadi; Eny Faridah; Sumardi Sumardi; Peter van der Meer; Muhammad Abdul Qirom
Jurnal GALAM Vol 1, No 2 (2021): Jurnal GALAM, Vol.1 No.2 2021
Publisher : Jurnal GALAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/glm.2021.1.2.123-140

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ABSTRACT Planting was done as a rehabilitation effort at degraded tropical peatland. Understanding the characteristics of the species and environmental conditions that affect plant growth will determine the success of the planting. This study aims to determine the main environmental factors that affect plants in the field so that the right species can be determined. This study used a randomized completely blocked design which was conducted in two stages, namely field testing and verification under controlled conditions in the nursery. The research treatments consisted of inundation conditions and competition with understorey. The competition factor is interpreted by the difference in light intensity at the verification stage. The species used are meranti (Shorea pallidfolia), gerunggang (Cratoxylum glaucum), terentang(Campnosperma coreacea) dan tumih (Combretocarpus rotundatus). The results showed that the inundation conditions had an effect on the survival of meranti and gerunggang species where the survival rate was 8.3%—96.3%, but it did not affect the terentang and tumih with the survival rate reaching > 80%. The growth of meranti and gerunggang tends to decrease in line with the inundation conditions, while the growth of terentang and tumih tends to increase. Meranti growth requires understorey as protection from high light intensity. The tumih and terentang show better growth without competition with understorey. The trends in the field are consistent with observations during the verification stage. The difference in the response of plants to environmental conditions determines the presence of these species in the succession stage. Keywords:rehabilitation, flooding, drainage, sequen, succession
Pengaruh Legum Penutup Tanah Terdapat Pertumbuhan Semai Mahoni (swietenia macrophylla) pada Tanah Marginal Puji Lestari; Eny Faridah; Cahyono Agus D Koranto
Jurnal Nasional Teknologi Terapan (JNTT) Vol 1, No 1 (2017): NOVEMBER
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.564 KB) | DOI: 10.22146/jntt.34087

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Indonesia has large area of marginal land including coast sandy soil and post coal mining soil areas. Reclamation process for marginal land needs long time and high cost, hence, strategic treatments are necessary to reduce both time and cost. This research aims to analyze the effects of media (coast sandy soil, alluvial deposit, and post coal mining soil) and legume over crop Centrocema pubescens on the growth of mahogany seedlings. This research was conducted at green house for 3 months using Completely Randomized Design (CRD) with 3 x 2 factorials and 3 replications. The first factor was marginal soil (three levels: coast sandy soil, post coal mining soil, and alluvial deposit as reference) while the second factor was the application of legume cover crop (two levels: apply and not apply). Variables observed were the height, diameter, biomass, and nutrient content of mahogany seedlings. The results showed that the growth of mahogany in sandy soil media is the best though nutrient content in that media is the lowest. It was caused reduction of salinity from that media. While, up to 3 months old, C. pubescens grew competitively.
JENIS TANAMAN RAMBATAN UNTUK PERTUMBUHAN KETAK (Lygodium circinatum (Burm.) Sw) DI HUTAN ALAM P.LOMBOK, NTB Endah Wahyuningsih; Eny Faridah; Budiadi
JURNAL SANGKAREANG MATARAM Vol. 3 No. 2 (2017): Juni 2017
Publisher : SANGKAREANG

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ketak (Lygodium circinatum(Burm.) Sw) adalah tumbuhan paku yang memproduksiHHBK dan memiliki nilai penting sebagai bahan baku kerajinan anyamandi Pulau Lombok, NTB. Ketak menghasilkan sulur yang digunakan sebagai bahan baku kerajinan anyaman. Dalam pertumbuhannya ketak memerlukan tanaman lain sebagai rambatan. Oleh karena itu, diperlukan studi untuk mengetahui jenis tanaman apa saja yang dominan dipilih oleh ketak sebagai rambatan di P. Lombok untuk pengembangannya lebih lanjut. Penelitian ini bertujuan untuk mengetahui jenis tanaman rambatan apa saja yang dipilih ketak sebagai rambatannya. Diduga ada peranan tanaman rambatan terhadap pertumbuhan dan peningkatan produktivitas sulur ketak. Metode penelitian adalahpurposive sistematic samplingdengan teknik survei yaitu mencari jenis target dengan menentukan sampling sebagai wilayah survey. Wilayah sampling ditentukan berdasarkan 3 ketinggian tempat yaitu 0-249,250-499 dan 500 mdpl ke atas. Pada masing-masing ketinggian di buat 10 petak ukur dengan ukuran 20m x 20m dan dilakukan pengamatan keberadaan ketak serta jenis tanaman apa saja pada setiap ketinggian yang merupakan rambatan ketak. Hasil penelitian menunjukkan bahwa ketak dalam pertumbuhannya memilih banyak jenis tanaman rambatan, akan tetapi ada beberapa jenis tanaman rambatan ketak yang favorit disukai ketak. Jenis tanaman rambatan yang paling banyak ditemui sebagai rambatan pada setiap ketinggian adalahsebagai berikut: A. Pada ketinggian 0-249 mdpl: 1. Aren (Arenga pinnata), 2. Ceruring/Langsat (Lansium domesticum), 3. Liana (Liana sp); B. Pada ketinggian 250-499 mdpl: 1. Waru (Hibiscus tiliaceus), 2. Kumbi (Tabernaen montana), 3. Gaharu (Gyrinops verstegii); dan C. Pada ketinggian 500 mdpl ke atas: 1.Kopi (Coffea robusta), 2. Aren (Arenga pinnata), 3. Liana (Lianasp). Berdasarkan hasil pengamatan di hutan alam P. Lombok diketahui bahwa aren merupakan jenis rambatan yang paling favorit dijadikan rambatan ketak. Hal ini diduga karena Aren merupakan jenis tanaman yang memiliki tajuk cukup ringan, sehingga sesuai dengan sifat ketak yang menginginkan naungan tetapi tidak berat. Untuk melengkapi informasi berkaitan dengan upaya peningkatan pertumbuhan dan produktivitas ketak secara komprehensif diperlukan penelitian mengenai faktor fisiologi dan lingkungan yang mempengaruhi karakter pertumbuhan dan produktivitas ketak.
KARAKTERISTIK KERUSAKAN HUTAN RAWA GAMBUT TROPIS TERDEGRADASI DI KALIMANTAN TENGAH Dony Rachmanadi; Eny Faridah; Sumardi Sumardi; Peter van der Meer
Jurnal Hutan Tropis Vol 5, No 2 (2017): Jurnal Hutan Tropis Volume 5 Nomer 2 Edisi Juli 2017
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v5i2.4363

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Peat swamp forest concessions and managements in Central Kalimantan have caused forest degradation resulting in the occurrence of forest fragmentation. The efforts on ecosystem restoration should be made based on the characteristics of fragmented peat swamp forest. This study aimed to find out the characteristics of degraded peat swamp forest assessed from the indicators of tree species diversity, community structure, and species dominance as well as their relationships with environmental conditions in various situations of fragmentation. The diversity of tree species tends to decrease following disturbance gradient, where the lowest was found near the edge. The community structure of the forest edge was dominated by small stand (diameter class of 6-10 cm) and dominated by Combretocarpus rotundatus of 60%. This condition was affected by environmental factors (67,2% - 71,8%): competition, site condition, microclimate and inundation.Keywords: disturbance characteristics; peat swamp forests; diversity; environmental factorsPengusahaan dan pengelolaan hutan rawa gambut selama ini di Kalimantan Tengah ternyata menyebabkan kerusakan yang menyebabkan hutan rawa gambut terfragmentasi. Usaha perbaikan ekosistem tersebut harus berdasarkan pada karakteristik dari ekosistem hutan rawa gambut yang terfragmentasi tersebut. Tujuan dari penelitian ini adalah untuk mempelajari karakteristik hutan rawa gambut terdegradasi yang terdiri dari indikator keanekaragaman jenis pohon, struktur komunitas, dan dominansi jenis serta hubungannya dengan kondisi lingkungan yang dilihat pada berbagai kondisi fragmentasi. Keanekaragaman jenis pohon semakin jauh dari hutan semakin rendah begitu juga dengan jumlah jenis dan kerapatan vegetasinya. Struktur komunitas pada bagian tepi hutan didominasi oleh tegakan berukuran kecil (kelas diameter 6-10cm) dan dominansi jenisnya hanya terpusat pada sedikit jenis dimana jenis Combretocarpus rotundatus mencapai 60%. Kondisi tersebut dipengaruhi oleh faktor lingkungan (67,2% - 71,8%) yaitu kompetisi dan kondisi lahan serta iklim mikro dan tinggi muka air tanah (genangan).Kata Kunci : karakteristik kerusakan; hutan rawa gambut; keanekaragaman; faktor lingkungan
Perbaikan Sifat Fisika dan Kimia Tanah pada Lahan Muara Sungai Progo pasca Rehabilitasi melalui Penanaman Bogem (Sonneratia sp) Eny Faridah; Daryono Prehaten; Cahyono Agus Dwi Koranto; Winastuti Dwi Atmanto; Haryono Supriyo; Handojo Hadi Nurjanto
Jurnal Ilmu Kehutanan Vol 15 No 2 (2021): September
Publisher : Faculty of Forestry Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2234.104 KB) | DOI: 10.22146/jik.v15i2.1802

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Mangrove planting in Progo River Esturaine in Kulon Progo was hindered by its marginal conditions, where the land was dominated by very dynamic sandy substrat. This condition has caused the growth of various planted mangrove seedlings by Forestry UGM team (2015-2016) was very low. Nevertheless, it was found that Sonneratia can grow well in the location. It was expected that Sonneratia can improve site condition so it became suitable for the growth of other mangrove species. This research aimed to assess soil properties of Progo River estuarine after rehabilitation using Sonneratia. Characterisation of soil physical (texture) and chemical (salinity, pH, and soil organic matter) properties were conducted in the Laboratory of Tree Physiology and Forest Soil, Faculty of Forestry UGM. Soil samples were collected from Sonneratia plant area in various growing conditions. The results showed that growth of Sonneratia affected soil physical properties particularly increasing the proportion of clay and silt, but not soil texture class. In general, more proportion of clay and sand were detected in the bigger Sonneratia plants and in the outer section of root system. The growth of Sonneratia also affected soil chemical properties particularly soil organic matter but not soil pH and salinity.
Optimalisasi Penggunaan Lahan dengan Sistem Agroforestri di Desa Ngancar, Ngawi: Land Use Optimization using Agroforestry System in Ngancar Village, Ngawi Winastuti Dwi Atmanto; Priyono Suryanto; Adriana Adriana; Ananto Triyogo; Eny Faridah; Daryono Prehaten; Budiadi Budiadi
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 8 No. 2 (2023): 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.v8i2.3938

Abstract

Most of the people live in Ngancar village, Pitu sub-district, Ngawi  district, East Java  are farmers. They cultivate crops not only on their privately-owned land but also on Perhutani’s forest land which is dominated by old teak stands. One of the problem in cultivating agricultural crops under old teak stands is the crown cover. It will significantly reduce the light intensity received by crops, and consequently decreasing the yield potential. Knowledge about the shade tolerant species and various silvicultural techniques should be understood and practiced by farmers, so that they can optimize the land use and achieve the high yield. Community service activities by Team of Silviculture Department, Faculty of Forestry UGM are carried out by establishing demonstration plot, maintenance, evaluation of plant growth and health, as well as problem identification and evaluation of successful cultivation under agroforestry system. Observation, focus group discussion, interview, questionnaire and counselling are implemented in order to collect related data and information. This community service activity uses descriptive qualitative approach. Outcome from this community service activity is recommendation of several shade tolerant species which can be cultivated under the old stands such as longan, avocado, and ginger. In addition, silvicultural treatment such as embroidery, weeding, and pest and disease control should be intensively managed  in agroforestry practice in order to achieve optimal yield productivity.
Bamboo for Riverbanks Rehabilitation and Economy Empowerment of Local Community of Pitu Village, Pitu Subdistrict, Ngawi Regency, East Java Winastuti Dwi Atmanto; Eny Faridah; Ananto Triyogo; Aqmal Nur Jihad; Sawitri Sawitri
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 9, No 1 (2023): March
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.79319

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Pitu Village, Pitu subdistrict located along the Bengawan Solo River in Ngawi, East Java, is one of the regions with a high risk of flooding due to human activities like as settlement and intensive agriculture along the riverbanks. This phenomena causes soil erosion and crop failure, which reduces the income of the Pitu local community. A rehabilitation strategy is required to resolve this issue, not only for the recovery of the riverbanks but also for the enhancement of the local community’s revenue. The objective of this community activity is to educate the public about the use of bamboo species in riverbank restoration (Dendrocalamus asper). Bamboo is selected because it has both ecological and socioeconomic benefits. This project was conducted between March and September of 2022 on the Grojogan riverbanks, Bengawan Solo River, Pitu Village, and Pitu Subdistrict. This exercise utilized Focus Group Discussion, lecture, and practice or training as its methods. The population of Desa Pitu might simply adopt bamboo species and cultivate them along riverbanks. The community and the community service team from the Silviculture Department planted 1,000 bamboo seedlings. The survival rate of bamboo plantations exceeded eighty percent, and new shoots grew swiftly (5–15 cm for 5 months). Training in bamboo growing and bamboo product processing improved their skills well. The community generates bamboo seedlings successfully through vegetative propagation. In addition, three local communities in Cebongan, Sleman, and Yogyakarta participated in a four-day bamboo processing training program. They were also producing some tables, chairs, and handicrafts with success (woven bamboo).
Tunas Air: Variasi Kemunculan dan Pengaruhnya terhadap Pertumbuhan Tanaman Jati (Tectona grandis) Eny Faridah; Sapto Indrioko; Tuharno Tuharno
Jurnal Ilmu Kehutanan Vol 3, No 1 (2009)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (14596.28 KB) | DOI: 10.22146/jik.926

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Epicormics Root: Emerge Variation  and Its Effect on  Teak  (Tectona grandis) Seedling growth Epicormic shoot is an adventitious shoot appearing from the dormant buds. The formation of the shoots is influenced by environmental conditions such as drought, excessive crown opening (by thinning) or by shoot death, but genetic factor also plays a role. Epicormic shoot is assumed to negatively affects plant growth. The study aims to identin) family variation in tendency to form epicormic shoots and to examine the effect of epicormic shoots on seedling growth of teakThe study was conducted in 2006 on teak plantation in compartments 37b, 38c, and 38d, RPH Mangkang, BKPH Mangkang, KPH Kendal. Plant materials used were 6-month teak plantation named as prospective teak plantation (Jati Prospektip. The research was done in Randomized Completely Block Design using 28 seedlots/families (clone number 1 to 28), 3 treeplots, and 3 blocks as replication; and 2 silvicultural treatments i.e. with epicormic shoots and without epicormic shoots (shoots being cut).Results showed that seedlots with the highest tendency to form epicormic shoots were number 5, 18, and 25, while those with the lowest tendency were 6, 10 and 12. The existence of epicormic shoots negatively affected plant growth both on height and stem diameter. In two months, height and stem diameter growth of plants without epicormic shoots were 81.0 cm and 1.29 cm respectively, while those with epicormic shoots were only 69.1 cm and 1.13 cm respectively. Two families showing the highest growth performance were families 14 (with height and diameter growth of 95.6 cm and 1.50 cm) and 22 (94.2 cm and 1.47 cm). 
Keberhasilan Okulasi Jati (Tectona grandis L.f.) Hasil Eksplorasi di Gunung Kidul Sapto Indrioko; Eny Faridah; Aan Yuli Widhianto
Jurnal Ilmu Kehutanan Vol 4, No 2 (2010)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (706.694 KB) | DOI: 10.22146/jik.1565

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Grafting Success  Story of Teak (Tectona grandis L.f.) from Exploration Material in Gunung KidulTeak exploration as planting material source of superior genotype is necessary for hedge orchard establishment for forest communities in order to produce the planting material by themselves. The objective of this study is to identify the success and growth of teak grafting resulted from exploration in Gunung Kidul region.The exploration aimed to collect teak ortet (mother tree). The ortets would be used as materials for hedge orchard, as the cutting source for community forest plantation. The study was conducted in Gunung Kidul region (for exploration) and in the Laboratorium on Intensive Silviculture, Silviculture Department, Faculty of Forestry UGM. In the laboratory, the first three months was to examine grafting compatibility, and the second three months to monitor the growth of teak grafting. The experiment in the laboratory was performed with Completely Randomized Design (CRD), with treatment of 16 clones and 10 treeplot replication each, making total of 160 clones.The study resulted in the following: 1) from the exploration, there were 52 clones having good genotypes; 2) from the 52 good-genotype clones, there were 16 clones having good compatibility; 3) in the period of 3 months, the best height growth was shown by clone number 6 with 27 cm; the best diameter growth by clone number 5 with 0.252 cm, and in term of leaf number, the best was shown by clone number 15 with 9.2 blades. In general clone number 6 showed the best compatibility and growth, with sprout life percentage of 37.03%; height growth of 2.7 cm; diameter growth of 0.114 cm and leaf number of 9.2 blades.
Pengaruh Cekaman Kekeringan terhadap Perilaku Fisiologis dan Pertumbuhan Bibit Black Locust (Robinia pseudoacacia) Novita Anggraini; Eny Faridah; Sapto Indrioko
Jurnal Ilmu Kehutanan Vol 9, No 1 (2015)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (894.681 KB) | DOI: 10.22146/jik.10183

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Black locust (Robinia pseudoacacia) merupakan tanaman asli Amerika Utara dan telah tersebar ke Eropa dan Asia serta menjadi salah satu spesies yang digunakan untuk rehabilitasi lahan semiarid dan arid. Walau demikian, kemampuan adaptasi black locust pada daerah persebarannya cukup meresahkan disebabkan jenis ini memiliki potensi invasif yang cenderung menekan pertumbuhan tanaman asli setempat. Tujuan penelitian ini adalah untuk mempelajari pengaruh cekaman kekeringan berupa volume penyiraman dan interval penyiraman terhadap perilaku fisiologis dan pertumbuhan bibit black locust, serta untuk menganalisis tingkat toleransi black locust terhadap kekeringan melalui karakter efisiensi penggunaan air (WUE) dan kandungan klorofil. Perlakuan volume penyiraman berupa kapasitas lapang 30-40 % mewakili kondisi kekeringan dan kapasitas lapang 70-80 % mewakili kondisi air yang memadai, sementara periode interval penyiraman adalah 1 hari, 3 hari dan 7 hari. Metode analisis yang digunakan ialah analisis tren. Hasil yang diperoleh pada penelitian ini adalah semakin rendah volume penyiraman (KL 30-40 %) dan semakin lama interval penyiraman (ke 7 hari) maka fotosintesis, transpirasi, konduktansi stomata, serta pertumbuhan (tinggi, diameter, berat kering tajuk dan akar) akan semakin rendah, sementara untuk WUE dan kandungan klorofil semakin tinggi. Peningkatan WUE dan kandungan klorofil merupakan dua indikator bahwa black locust mampu beradaptasi (toleran) pada kondisi cekaman kekeringan. Dengan begitu, dapat disimpulkan bahwa penggunaan black locust dalam upaya reklamasi lahan kering perlu didahului studi khusus dan pertimbangan yang matang agar tidak membawa dampak invasif pada kehidupan mendatang.Kata kunci: black locust, cekaman kekeringan, jenis invasif, water use efficiency, kandungan klorofil. Effect of drought stress on physiological behavior and growth ofblack locust (Robinia pseudoacacia) seedlingsAbstractBlack locust (Robinia pseudoacacia) is a native species from North America and it has spread to Europe and Asia. Black locust is also one species used for land rehabilitation in semiarid and arid areas. However, adaptability of black locust on their distribution area is quite disturbing due to its invasive potential that tends to suppress the growth of native plants. The purpose of this study is to examine the effect of drought stress through watering volume and watering intervals treatments on physiological behavior and growth of black locust seedlings, and to analyze the level of black locust on drought tolerance through water use efficiency (WUE) character and chlorophyll content. The watering volumes are 30-40 % of field capacity representing drought conditions and 70-80 % of field capacity representing good water conditions, while the watering intervals are 1, 3 and 7 days. Trend analysis is used to analyze the data. The results indicate that the lower watering volume (30-40 %) and the longer the watering interval (for 7 days), the lower the photosynthesis and transpiration rate, stomatal conductance and growth (height, diameter, shoot dry weight and root) of plants, but the higher the WUE and chlorophyll content. Increasing WUE and chlorophyll content are two indicators indicating that black locust is able to adapt (tolerant) to drought stress situations. Therefore, the use of black locust for dry land reclamation requires special attention and careful strategy to avoid its invasive impact in the future.