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All Journal Forum Pasca Sarjana Peronema Forestry Science Journal Journal of Sylva Indonesiana Repong Damar: Jurnal Pengabdian Kehutanan dan Lingkungan Global Forest Journal
Anita Zaitunah
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology

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Journal : Global Forest Journal

 1 
Analysis of the Tapanuli orangutan (Pongo tapanuliensis) population in other land use areas, Arse sub-district, South Tapanuli Regency Samsuri; Wanda Kuswanda; Rizky Nasution; Anita Zaitunah
Global Forest Journal Vol. 1 No. 01 (2023): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v1i01.13249

Abstract

Tapanuli Orangutan (Pongo tapanuliensis) is a globally critical species (critically endangered) due to the decreasing area of natural habitat. Orangutans can reach out of their natural habitat outside the forest and into community fields for feeding. Orangutans make the other land use not only a place to stopover but also a home range and living area marked by nests. The study aims to obtain information on the characteristics of nests and the estimated population of the Tapanuli orangutan (TO) in the other land-use area. This research method uses line transects placed by systematic sampling with a distance between lines of 3 km and population data analysis using calculations from the van Schaik formula. From the results of the 11 research lines, 14 nests were obtained consisting of 3 class B nests, 5 class C nests, 3 class D nests, and 3 class E nests. The characteristics of the most dominant nests were class C with the most preferred positions II and III and nest finding highest in Quercus maingayi tree. The research found that the density of the TO was eight individuals/1000 ha.
Analysis of tree quality on the green line using google earth in Tanjung Morawa District, Deli Serdang Regency Samsuri; Esterlina Napitupulu; Alfan Gunawan Ahmad; Anita Zaitunah
Global Forest Journal Vol. 1 No. 01 (2023): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v1i01.13253

Abstract

City development with unfriendly development causes the quality and quantity of open green space to decrease. Google Earth is an interactive mapping application released by google, which displays a digital visualization of the geographical shape of the earth. This study aims to determine the type and quality of trees on the urban forest in the Tanjung-Morawa sub-district and to map the quality of trees on the urban forest in the Tanjung-Morawa sub-district. This study uses a modified method of tree quality assessment with two criteria: tree health and technically criteria. From the observation result, there are 18 trees, Glodokan (Polyalthia longifolia) with the highest number, as many as 842 trees, and Dadap Merah (Erythrina crista goly) as the tree with the least amount. The quality of the trees in the urban forest shows a moderate good quality, where the highest health is in the medium category and for the technical in the low category. Trees that are recommended to be cut have a cumulative ≥ 2,5 Angsana trees with a total of 129 trees, and the highest cumulative percentage is the Banyan tree at 66,67%. The Mango tree has the lowest rate at 8,70%. Google Earth can’t be used optimally because of the low-resolution image quality. Image capture data in google earth has not been updated; the unstable internet connection and the time of the retrieval and processing of field data are not the same as the time retrieval and processing.
The usage of various fungi species has allowed the Avicennia marina to develop more swiftly in Belawan and Pulau Sembilan Yunasfi; Budi Utomo; Afifuddin Dalimunthe; Anita Zaitunah; Amanatul Fadhilah; Ipanna Enggar Susetya; O K Hasnanda Syahputra; Sri Lestari
Global Forest Journal Vol. 2 No. 01 (2024): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v2i01.15558

Abstract

Mangroves are a unique ecology that resides in places with salinity, which are inundated at low tide when there is no flooding and at high tide. Mangrove forests that are increasingly damaged cause the quality and quantity to decrease. Using different species of fungi that can accelerate the growth of mangroves is one attempt to increase and get high-quality mangrove seeds. This study aims to shed light on the fungi that can dramatically improve the growth of Avicennia marina seedlings. Mangroves can absorb organic and non-organic materials produced by decomposing microorganisms, which come from leaf litter or other decomposed materials. In this experiment, several fungal species were used, including Aspergillus niger, Aspergillus sp. 2, and Aspergillus sp. 1. The findings demonstrated that the fungus might speed up A. marina seedling growth. The plant's height, diameter, leaf width, and total dry weight were all altered as a result. Based on the study's findings, it can be said that Aspergillus niger provided the best growth for A. marina seedlings
Co-Authors Afifuddin Dalimunthe Agus Purwoko Ahmad Baiquni Rangkut Alfan Gunawan Ahmad Amanatul Fadhilah Andi Syahputra Apri Heri Iswanto Ardiansyah Putra Arida Susilowati Iswanto BUDI UTOMO Deni Elfiati Dikky Setiawan Diyanti Isnani Siregar Esterlina Napitupulu Etti Nur Cahyani Ginting, Eva Hafizah Arinah Harisyah Manurung I Nengah Surati Jaya Ipanna Enggar Susetya Jajang Sutiawan Luthfi Hakim Mariah Ulfa Moehar Maraghiy Harahap Muhdi Muhdi Nidya Andini O K Hasnanda Syahputra OK Hasnanda Syahputra Orang Kaya Hasnanda Syahputra Oteng Haridjaja Pindi Patana Rizky Nasution Rohana Megawati Sirait Rudi Hartono Samsuri Samsuri Samsuri SRI LESTARI Sucipto, Tito Sugiatno Sugiatno Suri Fadhilla Tia Novita Siregar Wanda Kuswanda Windy Sahraeni Batubara Yohanes Risky Shellen Ginting Yunasfi