Abstract
Chemical and kraft pulp properties of culm were investigated in three bamboo species (Bambusa vulgaris, Bambusa maculata and Gigantochloa atter) naturally grown in four different provenances of Lombok Island, Indonesia. The among-provenance variations of these characteristics were also evaluated. The amounts of chemical components (extractives, ash, Klason lignin, holocellulose, and α-, β- and γ-cellulose) in these three species were in the range of those read more

Abstract
Orangutan population sizes have been declining rapidly during the past decades. Proxies for the status of populations range from simple presence/absence data to estimations of absolute density. A variety of monitoring methods are available, including human observations, camera trapping, acoustic monitoring and aerial surveys. This qualitative review provides a comprehensive overview of population monitoring methods and associated metrics, discussing their strengths, read more

Abstract
Teak (Tectona grandis) is a valuable tropical tree species that is widely planted in more than 65 countries, including extensive plantations on Java Island, Indonesia. Java plays a critical role in global teak production. However, few studies have assessed the genetic diversity and local adaptation of this species using genome-wide sequencing data across its natural distribution and Indonesian landraces. Analysis of genetic structure and local adaptation can read more

Abstract
Mangrove ecosystems are vital for human livelihoods, but ongoing exploitation and natural disturbances have led to significant land use and cover changes. Therefore, this study aimed to identify trends regarding land cover (LC) changes in mangrove ecosystems using remote sensing. LC changes from 1988 to 2024, as observedusing remote sensing techniques. Satellite imagery from Landsat 5 TM, Landsat 7 ETM+, Landsat 8 OLI/TRIS, and Landsat read more

Abstract
Peatland ecosystems play a critical role in conservation of biodiversity and climate regulation, but face ongoing degradation from land-use change, mining, and infrastructure development. In response, peatland restoration has gained global attention. This bibliometric study analyzed 448 publications from the Web of Science (1996–2024) to identify global research trends, influential contributors, collaborative networks, technological developments, and implementation read more

Abstract
Walikukun (Schoutenia ovata Korth.) is a commercially significant wood species in Indonesia. Heartwood, in particular, is important due to the natural durability and aesthetics, while lipophilic extractives play a crucial role in the formation. Therefore, this study aimed to determine the levels of lipophilic compounds in different radial positions associated with the formation of Walikukun heartwood. The results showed that the mean of n-hexane, methanol, read more

Abstract
This study investigates the effects of deforestation and climate change on water flow regulation within the mixed-deciduous-forest-dominated Upper Nan Watershed in Northern Thailand. Using the SWAT model, hydrological changes were analyzed under 16 land-use scenarios and CMIP5 climate projections (RCP4.5 and RCP8.5) for both historic (1980–2020) and future (2021–2080) periods. Findings reveal that increasing rainfall variability under RCP8.5 amplifies hydrological read more

Yth.
Bapak/Ibu Ketua Kegiatan Penelitian dan Pengabdian Tahun Anggaran 2025,

Dengan hormat,

Mohon izin Bapak/Ibu Ketua Kegiatan Penelitian dan Pengabdian Tahun 2025, mau menyampaikan surat dari Wakil Dekan Bidang Penelitian, Pengabdian kepada Masyarakat dan Kerja Sama nomor: 4055/UN1/KT.1.3/P2M/PT.01.06/2025, perihal Pengumpulan Laporan Kemajuan Penelitian dan Pengabdian Fakultas Kehutanan UGM 2025 paling lambat 30 Juni 2025 melalui simaster. untuk format laporan kemajuan versi word bisa didownload read more

Abstract
The optimization of land use under teak (Tectona grandis) stands in post taungya system canbe enhanced by planting understory crops in a kind of three-strata agroforestry systems.Despite the potential, there is limited information on growth, morphophysiological adaptability,production, and phenotypic plasticity of the crops. this study aims to assess growth,morphophysiological adaptation, biomass production, and phenotypic plasticity of Calliandracalothyrsus read more

Abstract
The Seed Production Area (SPA) of sandalwood (Santalum album L.) in East Nusa Tenggara is Indonesia’s sole designated site for sandalwood seed production. It was established 32 years ago using trees from six provenances on Timor Island. The SPA supports regional economies and ecological protection by producing high-quality seeds for commercially valuable trees and species conservation. Despite annual seed collection, information on reproductive status, read more