Adriyanti, Dwi Tyaningsih
Departemen Silvikultur, Fakultas Kehutanan, Universitas Gadjah Mada Jl. Agro No. 1 Bulaksumur, Sleman 55281

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Monitoring of Natural Enemies (Hymenoptera) on Different Lands Use: Study from Agroforestry, Community Forest, and Pioneer Land Ananto Triyogo; Akbar Zhafran Adriansyah; Dwi Tyaningsih Adriyanti
Jurnal Manajemen Hutan Tropika Vol. 28 No. 2 (2022)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.28.2.162

Abstract

Land use and management must be carried out in a way that ensures the sustainability of land ecological function. The presence of natural enemies that suppress pest populations is an important component of the ecological function. Monitoring the presence of natural enemies and avoiding silvicultural activities that threaten the presence of natural enemies are important aspects of land management. This study investigates the presence of natural enemies on three different lands: agroforestry, community forests, and pioneer lands. Monitoring was carried out during three months at three types of land use by using observation plot in the square form of 20 x 20 m2. Insect collection in the field uses pitfalls and sticky traps which are placed using a grid and a diagonal method, respectively. Phytophagous insects, such as leafhopper, flies, thrips, aphids were surveyed. Hymenoptera natural enemies, predators (Formicidae) and parasitic wasps (Trichogrammatidae and Scelionidae) were obtained. The results show that community forests and pioneer lands are support the existence of Formicidae. This study indicates that in the agroforestry there are variations in population of Formicidae based on the period of on-going land management. Agroforestry provides a more suitable place for the existence of Trichogrammatidae and Scelionidae.
Community Empowerment through Sustainable Utilisation of Mangrove Forests for the Production of Natural Dyes with an Environmentally Friendly System (Phase I: Increasing Awareness and Knowledge Enhancement) Dwi Tyaningsih Adriyanti; Tri Winarni Soenarto Putri; Aswati Mindaryani; Agus Prasetya; Himawan Tri Bayu Murti Petrus
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.70455

Abstract

Community participation in mangrove forest ecosystem conservation is an effort to overcome and avoid mangrove ecosystem deterioration. The findings show that mangrove forests in Kampung Laut’s coastal region, particularly in the village of Ujung Alang, are still well preserved due to diverse mangrove planting efforts. Currently, the community uses mangrove plants by converting some plant sections into food and using the plant’s stems as building materials. Efforts have been made to preserve mangrove forest ecosystems through the Sustainable Utilisation of Mangrove Forests for the Production of Natural Dyes with a Zero Waste System. The following are the activities: 1) Dissemination of the concept to raise public awareness of the potential of mangrove plants as a source of raw materials for natural dyes to increase community income and sustainably manage mangrove forests, 2) Raising the awareness of the younger generation to improve the local economy through the development of micro-scale SMEs in the field of mangrove-based natural dyes, and 3) Technical training on thinning/logging and sustainable mangrove planting to acquaint participants with the concepts of thinning/logging and sustainable man Establish the program’s purpose, which should be divided into six activities. Many farmer groups anticipate that this community service under the auspices of Krida Wana Lestari will assist them in improving their existing products and estimating the potential process of their natural mangroves. This program raises public awareness of the mangrove plant’s potential as a source of raw materials for natural colours. In addition, this activity enables the community to do technical logging and sustainable mangrove planting to support the availability of raw materials for natural dyes. Consequently, the creation and development of a local economic business unit with a green entrepreneurship incubator model based on mangrove conservation and zero waste from natural dye SMEs have begun.
Pengelompokan Keruing (Dipterocarpus spp.) di Indonesia Menurut Karakter Buah Dwi Tyaningsih Adriyanti; Soekotjo Soekotjo; Mochammad Na'iem; Anto Rimbawanto
Jurnal Ilmu Kehutanan Vol 10, No 1 (2016)
Publisher : Fakultas Kehutanan Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.978 KB) | DOI: 10.22146/jik.12629

Abstract

Status taksonomi Famili Dipterocarpaceae telah mengalami beberapa kali perubahan. Menurut tinjauan klasifikasi yang disusun oleh Heim, Symington, Meijer, Maury, dan Ashton bahwa Dipterocarpus memiliki hubungan yang cukup dekat dengan Anisoptera sehingga dalam beberapa klasifikasi digambarkan dengan menuliskan keduanya dalam satu kelompok. Namun, Heim memiliki pandangan yang berbeda dengan 4 ahli yang lain yaitu membagi genus Dipterocarpus menjadi 5 seksi yaitu sphaerales, angulati, plicati, alati, dan tuberculati. Penggolongan yang dilakukan oleh Heim atas Dipterocarpus ternyata didukung dengan keterangan yang dikemukakan oleh Symington bahwa ke-5 seksi dapat dideteksi dari kelopak buah yang membentuk tabung. Penelitian ini bertujuan untuk mengetahui kedudukan seksi dalam genus Dipterocarpus ditinjau dari karakter buahnya. Materi sebanyak 38 spesies Dipterocarpus dan 3 Anisoptera dikoleksi dari sebaran alaminya kemudian diidentifikasi menggunakan prosedur standar dan hasilnya ditabulasikan dalam bentuk matrik. Terdapat 48 karakter meliputi seluruh organ, namun yang digunakan dalam penelitian ini dibatasi pada 9 karakter khusus pada organ buah. Analisis dilakukan secara statistik dengan software NCSS seri 10 untuk mendapatkan dendrogram yang akan menggambarkan hubungan kedekatan antar spesies. Hasil penelitian memperlihatkan bahwa kedudukan seksi dalam Dipterocarpus dapat dibuktikan secara nyata melalui karakter morfologinya. Dengan memanfaatkan Anisoptera sebagai outgroup, diketahui bahwa Dipterocarpus dari seksi sphaerales paling dekat dengan Anisoptera, kemudian diikuti oleh tuberculati, angulati, alati, dan plicati.Kata kunci: pengelompokan, Dipterocarpus, seksi, karakteristik, buah Classification of Keruing (Dipterocarpus spp.) in Indonesia on the Basis of Fruit CharactersAbstractThe taxonomy status of Dipterocarpaceae family has been changed for several times. According to the review of classification compiled by Heim, Symington, Meijer, Maury and Ashton, the genus Dipterocarpus had quite close relations with Anisoptera, therefore, in some classifications they were described by writing in a group. However, Heim had a different point of view from four other experts as he divided the genus Dipterocarpus into 5 sections: sphaerales, tuberculati, angulati, alati and plicati, The classification done by Heim on Dipterocarpus were supported by Symington that the 5 sections could be detected from the fruit petals forming a tube. This study aimed to determine the position of the species in the genus of Dipterocarpus in terms of fruit characters. There were 38 species of Dipterocarpus and 3 species of Anisoptera used in the research which were collected from the natural distribution and then were identified using standard procedures, and the results were tabulated in a matrix. There were 48 characters from the entire organ, but only 9 fruit characters used in this research. Statistical analysis was done with NCSS software series 10 to build a dendrogram and to draw the hierarchical of relations between species. The results showed that the position of section in Dipterocarpus was significantly provable through morphological characters. By utilizing Anisoptera as an outgroup, it was known that Dipterocarpus of sphaerales section was closest to the Anisoptera, followed by tuberculati, angulati, alati and plicati.