cover
Contact Name
Karti Rahayu Kusumaningsih
Contact Email
wanatropika@instiperjogja.ac.id
Phone
+628164229573
Journal Mail Official
wanatropika@instiperjogja.ac.id
Editorial Address
Fakultas Kehutanan INSTIPER Gd. Jati Jalan Nangka II, Maguwoharjo, Depok, Sleman Yogyakarta
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Jurnal Wana Tropika
ISSN : 20887019     EISSN : -     DOI : https://doi.org/10.55180
Core Subject : Agriculture, Social,
Wana Tropika first published in 2011 by Department of Forestry, Faculty of Forestry, Stiper Agricultural University. Jurnal Wana tropika, the official journal of the Indonesian Society for Forestry, publishes primary research paper, review article, policy analysis and research notes and preliminary results in all areas of forestry.
Articles 5 Documents
Search results for , issue "Vol 6 No 1 (2016)" : 5 Documents clear
DEKOMPOSISI BERBAGAI JENIS SERESAH GAMAL DI HUTAN PENDIDIKAN WANAGAMA 1, GUNUNG KIDUL, YOGYAKARTA Nurjanto, Handojo H.; Supriyo, Haryono; Widyastuti, Siti M.; Kabirun, Siti
Jurnal Wana Tropika Vol 6 No 1 (2016)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (470.958 KB)

Abstract

Plant litter is the major source of organic matter in the forest floor and litter decomposition plays an important role in the organic matter and nutrient entry to the soil. The decomposition rate is strongly influenced by climatic conditions and initial chemical composition of the litter. Litter in the rehabilitated forest area of Wanagama 1 Education Forest is dominated by Gamal (Gliricidia sepium) litter which isconsisted of leaves, twigs and fruit pods. This study assessedthe decomposition rate of leaf, twig and fruit podlitter of Gamal in compartment 5 and 6 of Wanagama 1 Education Forest. To assess effect of season, the research was conducted in dry season (August to November 2012) and in rainy season (from January to March 2013). The results showed that the decomposition rates of leaf, twig and fruit pod litter of Gamal in dry season were moderate with k (decomposition index) = 0.0074 – 0.0065, slow (k = 0.0043 – 0.0040), andslow (k = 0.0031 – 0.0026), respectively.In the rainy season, the decomposition process was faster with decomposition rates were high (k = 0.0132 – 0.0161), moderate (k = 0.0073 – 0.0065) and moderate (k = 0.0055 – 0.0063), respectively. There was no effect of compartments which differed in the stand density. Keywords : Decomposition Rate, Kind of Litter, Gamal (Gliricidia sepium), Season
PERTUMBUHAN DAN SERANGAN HAMA PADA TANAMAN JABON (Antocephalus cadamba) UMUR EMPAT TAHUN Prijono, Agus
Jurnal Wana Tropika Vol 6 No 1 (2016)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.748 KB)

Abstract

Wood consumption in Indonesia is increasing, meanwhile wood from natural forest is decreasing. Consequently the wood industry is widely supplied from fast growing plantation forests, with 15 years rotation or 10 m3 /ha/year growth yield. One of fast growing species is Jabon (Antocephalus cadamba) which can be harvested at 5 years with the price of Rp 900,000.00 per cubic meter. Jabon has been planted in various areas, one of them in Widodomartani, Ngemplak, Sleman, Yogyakarta Province. Jabon is a new plant in the Widodomartani community and has not been widely known for its growth. This research aims to determine the growth and pest attacks on plants jabon. The growth data (height and diameter) was taken from the sample in each treatment (6 treatments). The number of samples in each treatment was 10 trees repeated 3 times, so the total sample was 30 trees for each treatment. The data obtained were analyzed by ANOVA and if there were significant differences in the factors, followed by the LSD test. The growth rate of jabon at 4 years planted on 2 x 2 meters spacing is moderate, with live percentage of 73.31%, plant height 13.59 m and 10.71 cm diameter. Types of pests that attack jabon include stem borer with low attack intensity (8.6%) but cause severe damage (dead plants 83.33%), and leaf caterpillar with a total attack intensity (100%) but resulted in moderate damage levels (60.52% of live plants). Keywords : Growth, Pest Attack, Antocephalus cadamba
MEMPERTIMBANGKAN KERAWANAN LONGSOR DALAM ARAHAN PENGGUNAAN LAHAN BERHUTAN DI KABUPATEN KULON PROGO DAERAH ISTIMEWA YOGYAKARTA Djuariah, Rina; Senawi; Setyarso, Agus; Machfud, Maksum M.
Jurnal Wana Tropika Vol 6 No 1 (2016)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1437.543 KB)

Abstract

Forest transition in rural area derived by community landowner and supported by Indonesian Government Reforestation Programme at beginning. Meanwhile, landslide still occur in some region as well as Kulon Progo District of Yogyakarta Province. Land evaluation is needed in order to review forest land-use parcel due to landslide susceptibility. This research combines some procedures consists of Land Capability Analysis by scoring method regarding to Land Capability Assessment published by USDA (United States Departement of Agriculture) followed by Land Suitability Analysis, and forestland use planning by scoring method regarding to Ministry of Agriculture Declare number 837/Kpts/UM/11/1980 and number 683/Kpts/UM/8/1981 followed by Suitability Analysis. The results showing the wide range of land capability classes, i.e. I, II, III, IV, VI and VII. Result of Land Suitability Analysis showing generally Suitable Land-use, but Not Suitable for settlement in VI and VII classes of Land Capability also for Paddy Field in IV, VI and VII classes. The study area can be classified as protected zone 5,06%, buffer zone 41,16%, and cultivated zone 24,61%, when 65,40%, 29,40% and 3,69% for Suitable used, Positively Not Suitable and Negatively Not Suitable respectively. High pressure land use founded in steep land of mountainous area by respiratory cliff for settlement and road among high density of tree crown. Proposed land use for forestland by these procedures still inadequate due to the map scale used for rural area wiches unseparate land use for woodland and peasant's house. Future research need into account for landslide susceptibility assessment in specific site used for settlement among the forest cover due to the sustainable land-use and safety life. Keywords : Forest Transition, Land Capability, Landslide Vulnerability, Land Directives, Forestland Use
KARAKTERISTIK AGROEKOLOGI DAN POTENSI TANAMAN GARUT PADA BERBAGAI VARIASI KETINGGIAN DI KABUPATEN GARUT, JAWA BARAT Rohandi, Asep; Budiadi; Hardiwinoto, Suryo; Harmayani, Eni
Jurnal Wana Tropika Vol 6 No 1 (2016)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (677.53 KB)

Abstract

Arrowroot (Maranta arundinacea L.) is a multipurpose plant that can grow under the stands so that the species has the potential to develop in the pattern of agroforestry. Initial information of arrowroot plant population as a source of germplasm for plant material/superior varieties and their agroecological characteristics in the field is indispensable. The study aims to determine the distribution, agroecological characteristics and potency of arrowroot in Garut regency. The methods include: (1) the study of literature and direct communication with stakeholders and the public, (2) field survey to collect data on distribution, cultivation status, abundance and productivity of arrowroot plant using a single plot, and (3) data collection of arrowroot agroecological characteristics include: vegetation analysis and geoklimat factors. The research results indicate that the arrowroot populations distribute in groups with a fairly broad ecological range i.e. altitude 6-1351 masl, temperature 20-36o C, relative humidity RH 40-72%, light intensity 12-56% dan pH 4.16-7,40 (acid to neutral) and in the low to high soil fertility condition. Falcataria moluccana as the major private forest species dominates in all zones of altitude, especially on the stage of the tree. Arrowroot abundance by elevation zones is 63,750 plants/ha (lowlands), 43,864 plants/ha (plains) and 73.333 plants/ha (plateau). The potential production for all elevations ranged from 15.40 to 163.2 g/plants. Cikajang and Cilawu populations have good potential to produce the high yield of tuber for arrowroot cultivation in Garut District. Keywords : Maranta arundinacea, Agroecological characteristics, Elevation, Potency, Garut District
PENDEKATAN SPASIAL EKOLOGIS UNTUK PENGELOLAAN DAERAH ALIRAN SUNGAI (DAS) BERKELANJUTAN BERBASIS PENGENDALIAN EROSI (STUDI KASUS DI SUB DAS NGRANCAH, KABUPATEN KULON PROGO) Susatyo, Marcus Octavianus; Marsono, Djoko; Kusumandari, Ambar; Supriyanto, Nunuk
Jurnal Wana Tropika Vol 6 No 1 (2016)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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

Abstract

Sustainable development basically lies in the achievement of harmonisation between economic, ecological and social purposes. One form of sustainable development fromthe perspective of ecological dimension is the existence of spatial harmonism. Spatial harmonism means that in every development area have to allocate conservation area that has been identified in the form of forest area or area which serves as a forest (rural forest). Both in forest law and spatial law consider the existence of forets area at least 30 % of the watershed area.The research was conducted at Ngrancah Sub Watershed. Ngrancah Sub watershed is one part of Serang Watershed. According to Forestry minister decree Nr. 328 year 2009, Serang watershed is one of 108 critical watersheds and need to be given priority handling. The aims of this research are : (1) to investigate soil erosion, soil erosion rates, and soil erosion index ;(2) to analyze spatial ecology harmonism based on erosion control to optimize conservation area. Ngrancah Sub Watershed is the catcment area of Sermo Dam. The area of Ngrancah Sub Watershed is almost 2150 hectares. The area is mostly critical showed by the high rate of erosion. The high rate of erosion indicates that Ngrancah Sub Watershed needs to be manage and handled properly to reduce land degradation. Erosion is predicted using RUSLE Method (RUSLE Equation EA = Ri .K.L.S.C.P) and water balance (aridity index) based on its meteorogical function is calculated using Tornthwaite-Mather method. Isohyet methode is used to calculated rainfall while erodibility factor is calculated using Willem Formula (1995). According to Minimum Legible Area (Vink, 1975), research area could be classified into 80 spatial/ecological units. Slope observation and soil conservation practices is done in each spatial/ecological unit as well as soil samples also taken in each spayial/ecological unit. Linear program with QSB+ Software is conducted to analyse the data.The result of the research showed that the erosion rates varies from the lowest rate of 3,83 ton/ha/year to the highest rate of 494,91 ton/ha/year. About 39,98 % of research area is classified as moderate erosion rate area and about 38,39% of the area as high into very high erosion rate area. Based on Erosion Indeks, about 16,22% of the area is classified as the moderate Erosion Indeks and 73,30% of the area as high into very high Erosion Indeks. Spatial Ecology approach for sustainable watershed management by QSB+ program on the effort of erosion controll showed that to achieve spatial ecology harmonism is needed 87,48 % conservation area (area that identified as forest function) from the total area of Ngrancah Sub Watershed. Rural forest development (or agroforestry) involving local community is recommended to meet spatial ecology harmonism considering existing condition of Ngrancah Sub Watershed that only 2 % of forest area in Ngrancah Sub Watershed. Key Words : Spatial Ecology, Spatial Harmonism, erosion, RUSLE , QSB+

Page 1 of 1 | Total Record : 5