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INDONESIA
Jurnal Wana Tropika
Published by Institut Pertanian Stiper Yogyakarta
ISSN : 20887019     EISSN : -     DOI : https://doi.org/10.55180
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
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.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 107 Documents
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FRONT MATTER WANA TROPIKA Kusumaningsih, Kartirahayu
Jurnal Wana Tropika Vol 14 No 1 (2024): Mei
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Abstract

FRONT MATTER VOLUME 14 NOMOR 1 MEI 2024
Analisis Tingkat Erosi Menggunakan Metode USLE di Kapanewon Panggang Kabupaten Gunungkidul Daerah Istimewa Yogyakarta Atmojo, Surya; Suwadji, Siman
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i2.1635

Abstract

One of the causes of critical land is erosion; the greater the intensity of erosion, the more critical the land becomes. The distribution of erosion predictions is influenced by variables such as rainfall erosivity, soil erodibility, slope length and steepness, ground cover vegetation, land use, and land conservation. One of the critical lands is located in Kapanewon Panggang, Gunungkidul Regency, Special Region of Yogyakarta, covering an area of 9130.01 hectares, which consists of six villages: Giriharjo, Girisuko, Giriwungu, Girimulyo, Girikarto, and Girisekar. The purpose of this study is to determine the erosion rate in Kapanewon Panggang, to assess the level of erosion hazard in Kapanewon Panggang, and to formulate a land management concept based on actual land use conditions with erosion criticality parameters in Kapanewon Panggang, Gunungkidul Regency, Special Region of Yogyakarta. The method used is the USLE (Universal Soil Loss Equation). USLE is an erosion model designed to predict long-term erosion from sheet or rill erosion under specific conditions. USLE is used on both agricultural and non-agricultural lands. The results show that the erosion hazard levels in Kapanewon Panggang are categorized as very light (1184.28 hectares), light (1074.65 hectares), moderate (1831.70 hectares), severe (2411.01 hectares), and very severe (2628.38 hectares). The factors that most influence the magnitude of erosion are land use, slope length, and steepness. The land management concept to minimize erosion can be implemented based on land cover, namely in residential areas where water infiltration areas are needed, in savanna land use where additional vegetation and ground cover plants are necessary, and based on slope length and steepness, mechanical conservation by constructing bench terraces and stone bunds should be applied.
Pengujian Aplikasi Beberapa Jenis Bahan Aktif Bakterisida terhadap Serangan Bakteri Xanthomonas sp. pada bibit Eucalyptus pellita Kusumaningsih, Kartirahayu; Putra, Hansen Tanaka
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i2.1636

Abstract

One of the problems in cultivating Eucalyptus pellita seedlings in Industrial Plantation Forest (HTI) nurseries is the attack of Xanthomonas sp bacteria. Seedlings that are attacked by this bacteria will experience spots on the leaves, wilt, fall off, and ultimately cause the death of the seedlings. Controlling bacterial attacks by using bactericides is one effort to minimize bacterial attacks. The purpose of this research is to determine the effect of the type of bactericidal active components, namely Oxitetracycline, Zinc Thiazole, and Copper Oxside, and the spraying time interval on the growth of Xanthomonas sp on NA (Nutrient Agar) media, reducing the incidence and severity of bacterial attacks on E. pellita seedlings. The research used 2 treatments factor, namely kinds of bactericidal active component and spraying time interval. Test of bactericidal active component was carried out on laboratory (in-vitro) and direct testing on sedlings. The research results showed that bactericides with the active components Oxitetracycline, Zinc Thiazole and Copper Oxcide, were able to inhibit the growth of Xanthomonas sp on NA media. Oxitetracycline resulted in a higher reduction in the incidence and severity of Xanthomonas sp attacks on E pellita seedlings compared to other active ingredients, namely 61.36% for a reduction in incidence and 36.25% for a reduction in severity. The bactericide spraying time interval of 1 and 2 weeks did not have a significant effect on reducing the incidence and severity of Xanthomonas sp attacks on E. pellita seedlings.
Siklus Hidup Ulat Sutera Samia ricini Daun Singkong dan Potensi Pakan dari Agroforestri Sengon dan Singkong di Widodomartani, Ngemplak, Sleman, Daerah Istimewa Yogyakarta Prijono, Agus; Rawana; Woesono, Hastanto Bowo; Nugroho, Yunianto Hargo
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i2.1641

Abstract

The people of Widodomartani mostly have agricultural land that is managed independently. One of the agricultural land management practices carried out is sengon and cassava agroforestry. Cassava in addition to being taken from the tubers and leaves for vegetables can also be used for the cultivation of samia ricini silkworms. Cassava is usually planted on the sengon path on the guludan path. The planting distance of sengon is 2m x 2m while the distance between yams is 2m x 0.7 m or between sengon there are 3 cassava. This study aims to determine life cycle of Samia ricini silkworms, the production of cassava leaves and their potential for the cultivation of Samia ricini silkworms. The method used was to take samples of cassava plants to calculate the number of stalks, calculate the weight of the leaves and convert the feed needs of Samia ricini caterpillars and to known life cycle of Samia ricini silkworms. The results of the study obtained for life cycle of Samia ricini silkworms 53-61 days (eeg fases 7 days, 21-30 days caterpillars/larva, 17 days cocoon/pupae, and 8 days imago/silkworms) and an average leaf production per cassava plant of 123,466 leaf stalks. The number of plants per ha is around 7,142,857 plants. The potential production of the number of thigh leaves is 881,899,982 stalks. The average weight of 1 petiole is 4.06 grams (average 2.786 grams without stalk). The feed requirement of 1 large caterpillar is 15.3097 petioles / 62.157 gr (42.6528 gr without stalk). One hectare of sengon and cassava agroforestry land can support the cultivation of 57,603,348 samia ricini caterpillars. The average weight of one cocoon is 2.10 grams and silk (cocoon not pupae) 0.28571 gr (13,6%). One ha of land can support the production of silk cocoon as much as 120,967,030 gr or 120,967 kg.
Analisis Perubahan Kerapatan Vegetasi Penutup Lahan dengan Metode Indeks Vegetasi NDVI (Studi Kasus di Kawasan Hutan Rakyat Kabupaten Gunung Kidul) Husni, Muhamad Fakhri; Wahyudiono, Sugeng; Suhartati, Tatik
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i2.1651

Abstract

This study aims to analyze changes in vegetation density in Gunungkidul Regency using the NDVI (Normalized Difference Vegetation Index) method based on Landsat 8 satellite imagery. The research focuses on evaluating the condition of teak forest vegetation density in Gunungkidul Regency in 2013 and 2023, with the goal of identifying land cover changes and providing an overview of the forest ecosystem conditions in the area. The methods used in this research include processing satellite imagery with spatial analysis techniques using GIS (Geographic Information System) software. NDVI data was analyzed to measure vegetation density for both time periods, classifying land cover into several categories: non-vegetated land, very low vegetation, low vegetation, and moderate vegetation. The analysis results were compared to identify trends in changes over the ten-year period. The findings indicate that there has been a change in vegetation density in Gunungkidul Regency, with a decrease in the area of low vegetation from 126,747.87 hectares in 2013 to 118,972.88 hectares in 2023 (6,13%). An increase in non-vegetated land was also recorded, rising from 513.47 hectares to 1,107.76 hectares during the same period (113,24%). Although there were some improvements in vegetation density, the increase in non-vegetated land indicates challenges in land management in the region.
Kajian Partisipasi Anggota pada Kegiatan Kelompok Tani Hutan di Desa Kedung Poh Kecamatan Nglipar Kabupaten Gunung Kidul Saputro, Setiaji Heri; Budiharjo, Kadarwati
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i2.1654

Abstract

Most of the people who own community forests in Gunung Kidul, in their management, have formed Forest Farmers Groups (KTH), which aim to improve living standards and the economy through businesses in the forestry sector. Member participation in activities carried out by KTH is one of the approaches for KTH in generating ideas/ideas/programs in the context of solving problems for its members, increasing social awareness, improving human resources, and regeneration. This research aims to determine the extent of participation of KTH members in Kedungpoh village, Nglipar Gunung Kidul District in their activities and determine the correlation with their sociodemographic conditions. The method used in this research is a survey method which is analyzed using correlation analysis and crosstab. This research shows that the level of participation of members of the Forest Farmers Group in their activities in planning is 78.30%, implementation is 89.88% and evaluation is 66.39%, while the socio-demographic condition of the members of the Farmers group which has a correlation in participation in activities organized by the Forest Farmers Group is age. and years of farming, which is closely related to members' motivation in participating in activities, namely to increase knowledge, receive agricultural assistance, gain experience, develop personal potential, increase enthusiasm and obtain agricultural training. This research also shows that there is a relationship/correlation between activity stages, namely between the stages of activity planning, activity implementation and activity evaluation.
FRONT MATTER WANA TROPIKA Bowo Woesono, Hastanto
Jurnal Wana Tropika Vol 14 No 2 (2024): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Abstract

FRONT MATTER WANA TROPIKA VOLUME 14 NOMOR 2 NOVEMBER 2024

Page 11 of 11 | Total Record : 107

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